Answer:
Step-by-step explanation:
The expression +3(5-3) can be simplified using the order of operations (PEMDAS) as follows: first, we need to perform the exponentiation operation, which gives us 125.
Then, we need to perform the operation inside the parentheses, which gives us 6. Finally, we multiply 3 by 6, giving us 18. Therefore, the simplified expression is 125 + 18 = 143.
To further explain this solution, we use the order of operations, which is a set of rules that dictate the order in which operations must be performed when evaluating an expression. The acronym PEMDAS stands for Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction, which represents the order of operations from left to right.
In this expression, we first need to evaluate the exponentiation operation, which is 5 to the third power. This gives us 125. Next, we need to perform the operation inside the parentheses, which is 5-3. This gives us 2. We then multiply 3 by 2, which gives us 6. Finally, we add 125 and 6, giving us 131.
It is important to follow the order of operations when simplifying an expression to ensure that we obtain the correct result. By using PEMDAS, we can systematically simplify an expression step-by-step, avoiding any potential errors and obtaining a clear and concise solution.
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an airplane is 58 m long. a scale model of the plane is 40.6 cm long.
determine the scale factor used to create the model as a decimal rounded
to the nearest thousandth
If a scale model of the plane is 40.6 cm long, the scale factor used to create the model is approximately 1:142.857 or 0.007 rounded to the nearest thousandth.
To determine the scale factor used to create the model, we need to divide the length of the actual airplane by the length of the model airplane:
58 m / 40.6 cm
To perform this calculation, we need to convert the units so that they match. We can convert 58 m to cm by multiplying by 100:
58 m = 58 × 100 cm = 5800 cm
Now we can divide:
5800 cm / 40.6 cm = 142.857...
Rounding to the nearest thousandth, we get:
142.857... ≈ 142.857
Therefore, the scale factor used to create the model is approximately 1:142.857 or 0.007 rounded to the nearest thousandth.
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You invest $2500 in an account to save for college. account 1 pays 6%annual interest compounded quarterly. account 2 pays 4% annual interest compounded continuously. which account should you choose to obtain the greater amount in 10 years?
account 1
or
account 2
You should choose Account 1 to obtain the greater amount in 10 years. Account 1 will have a higher balance after 10 years.
Account 1 pays 6% annual interest compounded quarterly, which means the interest is calculated and added to the principal four times a year. You can use the formula A = P(1 + r/n)^(nt) to calculate the future value, where A is the final amount, P is the principal ($2500), r is the annual interest rate (0.06), n is the number of times compounded per year (4), and t is the number of years (10).
Account 2 pays 4% annual interest compounded continuously. You can use the formula A = Pe^(rt) to calculate the future value, where A is the final amount, P is the principal ($2500), e is the base of the natural logarithm (approximately 2.71828), r is the annual interest rate (0.04), and t is the number of years (10).
When you compare the final amounts for both accounts, Account 1 will have a higher balance after 10 years.
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Please help me ill give out brainest
which expression is equivalent to 1/5x(5y+60)
a. 1/5(2xy+3xy+40x)
b. xy+60x
c. y+12x
d. 25xy+300y
e. 13xy
f. x(y+12)
Answer:
The correct answer is ** x(y+12) or f.
We can simplify the expression 1/5x(5y+60) by multiplying the factors in the parentheses and then dividing by 5. This gives us:
```
1/5x(5y+60) = 1/5 * 5xy + 1/5 * 60x = x(y+12)
```
Find the volume of the solid enclosed by the paraboloids z = 4 (x² + y²) and z = 50 – 4 (x2 + y²).
The volume of the solid enclosed by the paraboloids z = 4 (x² + y²) and z = 50 – 4 (x² + y²) is approximately 164.93 cubic units.
To find the volume of the solid enclosed by the two paraboloids, we need to first find the intersection of the two surfaces. Setting the equations of the paraboloids equal to each other, we get:
4(x² + y²) = 50 - 4(x² + y²)
Simplifying this equation, we get:
8x² + 8y² = 50
Dividing by 8, we get:
x² + y² = 6.25
This equation represents a circle of radius 2.5 centered at the origin in the xy-plane.
To find the volume of the solid, we can use a double integral in cylindrical coordinates:
V = ∫∫R (50 - 4r²) - 4r² r dr dθ
where R is the region enclosed by the circle x² + y² = 6.25.
Evaluating the integral, we get:
V = ∫0^2π ∫0^2.5 (50 - 8r²) r dr dθ
= 2π [25r² - (4/3)r^4]0^2.5
= 2π [156.25/3]
≈ 164.93 cubic units
Therefore, the volume of the solid enclosed by the paraboloids z = 4 (x² + y²) and z = 50 – 4 (x² + y²) is approximately 164.93 cubic units.
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Dan's small business earned about $85,000 this year. Based on data from similar businesses, Dan expects his annual earnings to increase by 12% each year. Write an exponential equation in the form y=a(b)x that can model Dan's annual earnings, y, in x years. Use whole numbers, decimals, or simplified fractions for the values of a and b. y = _____ To the nearest hundred dollars, how much is Dan's small business predicted to earn in 5 years?
The equation would be written as: y = $85,000(1 + 0.12/1)^5
Then the predicted earning would be y = $132,559
How to solve for the earningy=a(b)x
where y = income
a = $85,000
b = (1 + r = percent increase)
then x = time period = 5 years
When we put in the values we would have y = $85,000(1 + 0.12/1) ^5
The exponential function of the form y = a(b)^x is: y = $85,000(1 + 0.12/1) ^5
When we solve the above, we would have the income = y = $132,559
Therefore the predicted earnings that Dans small business would have in a period of five years is equal to $132,559
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help!!
this is due by today, if anyone could help i would really appreciate help
the question is: what is the area of the shaded portion?
this 3 questions please????????
Consider the following function
f(x) = x^2/x^2 -9
Find the criticat number of renter your antwers as a comma-separated list) Find the open intervals on which the function is increasing or decreasing. (Enter your answers using interval notation. If an answer does not exist, enter DNE.)
Critical numbers: 0, -3, 3
Increasing intervals: (-∞, -3), (3, ∞)
Decreasing intervals: (-3, 0), (0, 3)
Let's analyze the given function and find the critical numbers, as well as the intervals where it is increasing or decreasing.
Function: f(x) = x^2 / (x^2 - 9)
1. Find the critical numbers:
To find the critical numbers, we need to compute the first derivative of the function and set it equal to zero or identify where it's undefined.
f'(x) = (2x(x^2 - 9) - x^2(2x)) / (x^2 - 9)^2 = (2x^3 - 18x - 2x^3) / (x^2 - 9)^2 = -18x / (x^2 - 9)^2
Setting f'(x) equal to zero:
-18x = 0
x = 0
Now, let's check where f'(x) is undefined:
x^2 - 9 = 0
x = ±3
Thus, the critical numbers are 0, -3, and 3.
2. Find the open intervals where the function is increasing or decreasing:
To determine the intervals, we will examine the sign of f'(x) in the intervals determined by the critical numbers: (-∞, -3), (-3, 0), (0, 3), (3, ∞).
Interval (-∞, -3): Choose x = -4, then f'(-4) > 0. So, f(x) is increasing on this interval.
Interval (-3, 0): Choose x = -1, then f'(-1) < 0. So, f(x) is decreasing on this interval.
Interval (0, 3): Choose x = 1, then f'(1) < 0. So, f(x) is decreasing on this interval.
Interval (3, ∞): Choose x = 4, then f'(4) > 0. So, f(x) is increasing on this interval.
Your answer:
Critical numbers: 0, -3, 3
Increasing intervals: (-∞, -3), (3, ∞)
Decreasing intervals: (-3, 0), (0, 3)
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Diversifying Your Savings Portfolio 1.2
You saved $30,000.00 and want to diversify your monies. You invest 40% in a
Treasury bond for 3 years at 5.35% APR compounded annually You place 10% in a CD
at 4.75% APR for 3 years compounded annually 30% you invest in a stock plan and
the remainder is in a savings account at 3.90% APR compounded annually. The stock
plan increases 9% the first year, decreases in value by 5% the second year, and
increases by 7% the thind year.
1. What are the balances for each type of investment a
year?
2. What is your total gain from all of the investments combined?
of the thind
3. If you had invested 40% in stock and 30% in Treasury bonds, would you have
more or less of a gain after the three years?
Be sure to include in your response:
Detailed calculations for each type of investment.
Answers to the original questions.
Answer:
ChatGPT
To find the balances for each type of investment after one year, we can use the formula for compound interest:
Treasury bond: A = P(1 + r/n)^(nt)
A = 0.4(30000)(1 + 0.0535/1)^(1*1) = $12,912.00
CD: A = P(1 + r/n)^(nt)
A = 0.1(30000)(1 + 0.0475/1)^(1*1) = $10,316.25
Stock plan: After the first year, 30% is still in the savings account. The other 70% is in the stock plan, which increased by 9%, so the new value is:
0.7(30000)(1 + 0.09) = $23,940.00
Savings account: A = P(1 + r/n)^(nt)
A = 0.2(30000)(1 + 0.039/1)^(1*1) = $6,351.00
To find the total gain from all of the investments combined, we need to add up the gains from each investment:
Treasury bond: $12,912.00 - $12,000.00 = $912.00 gain
CD: $10,316.25 - $9,000.00 = $1,316.25 gain
Stock plan: After the second year, the stock plan decreased in value by 5%, so the new value is:
0.7($23,940.00)(1 - 0.05) = $19,149.00
After the third year, the stock plan increased by 7%, so the final value is:
0.7($19,149.00)(1 + 0.07) = $20,129.57
The gain from the stock plan is:
$20,129.57 - $21,000.00 = -$870.43 loss (since the stock plan decreased in value overall)
Savings account: $6,351.00 - $6,000.00 = $351.00 gain
Total gain = $912.00 + $1,316.25 - $870.43 + $351.00 = $708.82
If you had invested 40% in stock and 30% in Treasury bonds, the calculations would be:
Treasury bond: A = P(1 + r/n)^(nt)
A = 0.3(30000)(1 + 0.0535/1)^(1*3) = $12,853.81
Stock plan: After the first year, 40% is still in the savings account. The other 60% is in the stock plan, which increased by 9%, so the new value is:
0.6(30000)(1 + 0.09) = $16,200.00
After the second year, the stock plan decreased in value by 5%, so the new value is:
0.6($16,200.00)(1 - 0.05) = $15,390.00
After the third year, the stock plan increased by 7%, so the final value is:
0.6($15,390.00)(1 + 0.07) = $16,019.16
Total gain = ($12,853.81 - $12,000.00) + (-$981.84) + ($1,019.16) = $890.13
Therefore, investing 40% in stock and 30% in Treasury bonds
Christy went jogging on saturday. the table shows how far she had jogged after various times.
distance (miles) 10
15
20
time (hours)
2
3
4.
christy subtracted to find her jogging rate for each time period and said that her rate
increased each hour, from 8 to 12 to 16 miles per hour. is christy correct? explain why or
why not.
She is incorrect when she said that her rate increased each hour from 8 to 12 to 16 miles per hour. Her jogging rate was actually a steady 5 miles per hour.
You asked if Christy is correct when she said that her rate increased each hour, from 8 to 12 to 16 miles per hour. Let's analyze the data given in the table and see if she's right.
The table shows the distance Christy jogged and the corresponding time:
- 10 miles in 2 hours
- 15 miles in 3 hours
- 20 miles in 4 hours
To find her jogging rate for each time period, we need to divide the distance by the time.
1. For the first 2 hours:
Jogging rate = distance / time = 10 miles / 2 hours = 5 miles per hour
2. For the first 3 hours:
Jogging rate = distance / time = 15 miles / 3 hours = 5 miles per hour
3. For the first 4 hours:
Jogging rate = distance / time = 20 miles / 4 hours = 5 miles per hour
Christy's jogging rate remained constant at 5 miles per hour throughout her run. Therefore, she is incorrect when she said that her rate increased each hour from 8 to 12 to 16 miles per hour. Her jogging rate was actually a steady 5 miles per hour.
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Use the image to determine the direction and angle of rotation.
Graph of triangle ABC in quadrant 1 with point A at 1 comma 3. A second polygon A prime B prime C prime in quadrant 4 with point A prime at 3 comma negative 1.
90° clockwise rotation
180° clockwise rotation
180° counterclockwise rotation
90° counterclockwise rotation
The rotation used in this problem is given as follows:
90º clockwise rotation.
What are the rotation rules?The five more known rotation rules are given as follows:
90° clockwise rotation: (x,y) -> (y,-x)90° counterclockwise rotation: (x,y) -> (-y,x)180° clockwise and counterclockwise rotation: (x, y) -> (-x,-y)270° clockwise rotation: (x,y) -> (-y,x)270° counterclockwise rotation: (x,y) -> (y,-x)A vertex and it's equivalent is given as follows:
A(1,3) and A'(3, -1).
Hence the rule is:
(x,y) -> (y, -x).
Which is the rule for a 90° clockwise rotation = 270º counterclockwise rotation.
Missing InformationThe image is presented at the end of the answer.
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Answer:
90° clockwise rotation
Step-by-step explanation:
I did the exam and got it correct
Need help please answer
For a random sample of 75 kindergartners, mothers' incomes are plotted on the x-axis and fathers' incomes are plotted on the y-axis. The resulting scatter plot produces a linear association described by the equation y=1. 23x+5. 3. Which conclusion can be made about this sample?
The intercept of 5.3 suggests that even if a mother had no income, the expected minimum fathers' income would be $5.30.
In mathematical terms, the equation y=1.23x+5.3 is in slope-intercept form, where y represents the fathers' incomes and x represents the mothers' incomes. The slope of the line, 1.23, represents the change in fathers' incomes for every one unit increase in mothers' incomes. The y-intercept of the line, 5.3, represents the minimum fathers' income when the mothers' income is zero.
With this equation, we can make several conclusions about this sample. Firstly, the positive slope suggests a positive correlation between the incomes of mothers and fathers. As the mothers' incomes increase, the fathers' incomes also tend to increase.
Secondly, the slope value of 1.23 suggests that fathers' incomes increase by $1.23 for every $1 increase in mothers' incomes.
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Many artists incorporate geometry shapes into their art. an artist wants to make a sculpture shaped like a cone with a height of 4.2 inches and a radius of 2.5 inches.the artist needs to know the volume of the sculpture to purchase the correct amount of materials
part a. which equation shows the art is used to calculate the volume of a cone with the given measurements
part b. what is the volume,in cubic inches,of the cone? use 3.14 for pie and round your answer to the nearest tenth
The volume of the cone is approximately 26.1 cubic inches.
What is the equation used to calculate the volume of a cone with a radius of 2.5 inches and a height of 4.2 inches?The formula used to calculate the volume of a cone is:
V = (1/3) × π ×[tex]r^2[/tex] × h
where V is the volume of the cone, r is the radius of the base of the cone, h is the height of the cone, and π is a mathematical constant that is approximately equal to 3.14.
Part b. Plugging in the given values, we get:
V = (1/3) × 3.14 ×[tex]2.5^2[/tex]× 4.2
V = (1/3) × 3.14 × 6.25 × 4.2
V = 26.125 cubic inches (rounded to the nearest tenth)
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A nearby house requires approximately 52,000 BTUs for heating. If the house is 31 feet long and 25 feet wide, what is the height of the
house? Round your answer to the nearest foot
ft
The height of the house by the given data is 4000ft.
We are given that;
Number of BTUs for heating= 52000
Now,
The time from minutes to hours by dividing by 60:
t=606.24 hr
t≈0.104 hr
Then, we can plug in the values into the heat loss formula and solve for A, which is the surface area of the house:
Q=UAΔTt
52,000=0.25A×50×0.104
A=0.25×50×0.10452,000 ft2
A≈4000 ft2
Therefore, by the algebra the answer will be 4000 ft.
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Answer:3.75 BTUs/ft
height=18 ft
Step-by-step explanation:
Can someone how to use a TI-84 Plus to do the following:
Normal Distribution: Finding Values
Normal Distribution: Finding Probibilities
Sampling Distributions and the Central Limit Theorem
!!!!I have a test on this tmr please help!!!!
Normal Distribution: Finding Values
Press the "2nd" key, then press the "vars" key to access the DISTR menu.
Scroll down to "Normalcdf" and press enter.
Enter the lower bound, upper bound, mean, and standard deviation. For example, if you want to find the probability that X is between 60 and 70, given that the mean is 65 and the standard deviation is 5, you would enter "60, 70, 65, 5".
Press enter to get the result. The calculator will give you the probability that X falls between the two values you entered.
Normal Distribution: Finding ProbabilitiesPress the "2nd" key, then press the "vars" key to access the DISTR menu.
Scroll down to "InvNorm" and press enter.
Enter the probability you want to find. For example, if you want to find the z-score that corresponds to the 90th percentile, you would enter "0.9".
Enter the mean and standard deviation. For example, if the mean is 65 and the standard deviation is 5, you would enter "65, 5".
Press enter to get the result. The calculator will give you the z-score that corresponds to the probability you entered.
Sampling Distributions and the Central Limit Theorem: Press the "2nd" key, then press the "vars" key to access the DISTR menu.
Scroll down to "1-PropZTest" or "2-PropZTest" and press enter, depending on the type of test you want to perform.
Enter the sample statistics and the population parameters, if known. The calculator will use these values to calculate the test statistic and p-value.
Press enter to get the result. The calculator will give you the test statistic and the p-value, which you can use to make inferences about the population.
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5.
Sarah deposited $800 in an account that earns
2% interest compounded annually. Claire deposited
$800 in an account that earns 2% simple interest.
How much will each girl have in their account at the
end of 8 years if they do not make any deposits or
withdrawals?
Answer:
Sarah will have $937.28 and Claire will have $928.
Step-by-step explanation:
All my work is provided in the screenshots that are attached to my answer! Drop questions in the comments and I'll try to respond if I remember/see them lol.
Have a great day!
An architect draws a blueprint of the newly modeled family room she is designing for her basement. The scale she uses is 1 inch = 2.5 feet. If the length of the family room is 8 inches, and the width of the family room is 4 inches, what are the actual dimensions of the family room?
Answer:20 feet by 10 feet
Step-by-step explanation:
Points E, F, G and H lie on the circle and EG = EH.
HF and EG intersect at K.
ET is a tangent to the circle at E.
Angle FET = 47° and angle FEG = 25°.
Find the value of x.
Using the inscribed angle theorem, the value of x in the circle shown is calculated as: m<x = 36°.
How to Apply the Inscribed Angle Theorem?According to the inscribed angle theorem an inscribed angle has an angle measure that is always half of the measure of the arc it intercepts.
Measure of arc EFG = 2(25 + 47) [inscribed angle theorem]
Measure of arc EFG = 144°
Measure of angle EHG = 1/2(m(EFG)) [inscribed angle theorem]
Substitute:
Measure of angle EHG = 1/2(144) = 72°
m<EHG = m<EGH = 72° [this is because triangle EHG is an isosceles triangle since sides EG = EH].
Therefore, we have:
m<x = 180 - 2(72)
m<x = 36°
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A population of insects increases at a rate of 280 +64 +0.9t^2 insects per day Find the Insect population after 5 days, assuming that there are consects att Round your arwer to the ne
Since we need to round our answer to the nearest whole number, the insect population after 5 days will be approximately 367 insects.
Given the rate at which the insect population increases, we can determine the population after 5 days using the given formula: 280 + 64 + 0.9t^2 insects per day.
First, we need to substitute t with the number of days, which is 5:
280 + 64 + 0.9(5)^2
Now, calculate the value of the equation:
280 + 64 + 0.9(25) = 280 + 64 + 22.5 = 366.5
OR,
The population of insects after 5 days can be found by plugging in t = 5 into the given equation:
Population = 280 + 64 + 0.9(5)^2
Population = 280 + 64 + 22.5
Population = 366.5
Rounding to the nearest insect, the population after 5 days is 367 insects.
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PLease help 1 and 2 Pythagorean Theorem and if you can explain please
Answer:
Step-by-step explanation:
The Pythagorean theorem has the formula a squared(leg) + b squared(leg) = c squared(longest leg). This means [tex]12^{2} +16^{2} =20^{2} -- > 144+256=400[/tex] which is true meaning number 1 is a right triangle. [tex]10^{2} +49.5^{2} = 50.5^{2} -- > 100+2450.25=2550.25[/tex] is true meaning number 2 is also a right triangle because the sum of the shortest legs squared are equal to the longest leg (hypotenuse) squared.
During the period 2000-2016, the average costs B (in dollars) for a new boat and the average costs H (in dollars) for a hovercraft can be modeled
by the following functions:
B = 30 +140 and H=-1012 +350 + 400
where t is the number of years since 2000
(a) How can the difference of the costs of a hovercraft and the costs of a boat be expressed? (4 points)
(b) About how much was the difference in the year 2010? (2 points)
The difference between the costs of a hovercraft and a boat in the year 2010 was approximately $1,558.
(a) The difference in costs between a hovercraft and a boat can be expressed as follows:
Cost difference = Hovercraft cost - Boat cost
Cost difference = (-1012 + 350t + 400) - (30 + 140t)
Cost difference = -1012 + 350t + 400 - 30 - 140t
Cost difference = 220t - 642
Therefore, the difference in costs between a hovercraft and a boat can be expressed as 220t - 642.
(b) To find the difference in the year 2010, we need to substitute t = 10 in the expression we derived in part (a):
Cost difference = 220t - 642
Cost difference = 220(10) - 642
Cost difference = 2200 - 642
Cost difference = 1558
Therefore, the difference between the costs of a hovercraft and a boat in the year 2010 was approximately $1,558.
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). Brooklane Ltd. Has recently appointed a new CEO of the company. The CEO has several new ideas for the organisation. One idea, which he wants to explore is the elimination of annual budgets. You are working as a management team member in this company and CEO has asked you to write a report which investigates this idea.
Question
a) Write a report for the CEO setting out the advantages and limitations of an annual budgeting system. Use academic sources to support your answer.
Part (two). The following information relates to the wards in the cardiology department of Good Health Hospital for one accounting period
Wards 1 ,2 ,3
Number of Beds 12 ,10,20
Total number of Patients 48,32, 108
Total ward staff (excluding consultants) 8, 8 ,12
Ward staff – full-time equivalent 5 ,4 ,6
Variable operating costs for period £58,000, £66,000, £98,000
Operating fixed costs £85,000 ,£67,000, £88,000
General overhead costs £40,000, £40,000, £40,000
General overhead costs are made up of recharges from support services. The total cost of £120,000 is split equally between the three wards. The hospital manager is concerned about the high costs of running the three heart-care wards. She has asked you to investigate their performance.
Question
b) Write a report which investigates the costs of operating the three hospital wards. Your report should include appropriate measures of performance for each ward and you should draw conclusions from the costs. Calculate necessary calculations to support your conclusions.
[Hint: Calculations include: Patient (turnover) per bed, FTE Staff per bed & per patients, Variable Cost per bed & per patient and Fixed cost per bed & per patient. ]
a The purpose of this report is to investigate the advantages and limitations of the annual budgeting system to determine whether the elimination of the system is a good idea.
b Report on the Advantages and Limitations of an Annual Budgeting System This report investigates the advantages and limitations of an annual budgeting system. The purpose is to assess the feasibility of eliminating the annual budgeting system at Brooklane Ltd. By analyzing academic sources, we can gain insights into the potential benefits and drawbacks of such a decision.
Advantages of an Annual Budgeting SystemThe annual budgeting system has several advantages. Firstly, it allows organizations to set financial goals and targets for the coming year. This helps organizations to allocate resources and prioritize their spending to achieve their goals.
Limitations of an Annual Budgeting System is that despite its advantages, the annual budgeting system also has limitations. Firstly, it can be time-consuming and costly to prepare, especially for larger organizations. This can divert resources from other important areas of the organization.
In conclusion, the annual budgeting system has both advantages and limitations.
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why zero is neither positive or negative probe with scientific ?
Answer: As the Integers being positive or negative depends on the 0 As it is reference present on the centre of the number line
Numbers on the left side are negative while that on right side being positive
Step-by-step explanation:
The ceiling of Stacy's living room is a square that is 25 ft long on each side. Stacy knows the diagonal of the ceiling from corner to corner must be longer than 25 ft, but she doesn't know how long it is.
Solve for the length of the diagonal of Stacy's ceiling in two ways:
(a) Using the Pythagorean Theorem.
(b) Using trigonometry
The length of the diagonal of Stacy's ceiling using the Pythagorean Theorem and trigonometry is 35.36 ft.
(a) Using the Pythagorean Theorem:
Since the ceiling is a square, we can treat it as two right triangles. Let's call the length of the diagonal 'd'. Now, we can apply the Pythagorean Theorem (a² + b² = c²) to one of the right triangles:
a² + b² = d²
25² + 25² = d²
625 + 625 = d²
1250 = d²
Now, take the square root of both sides:
√1250 = d
d ≈ 35.36 ft
(b) Using trigonometry:
In one of the right triangles, the angle between the two sides of the square (25 ft each) is 45 degrees. We can use the tangent function (tan) to relate the angle to the side lengths:
tan(45) = opposite side / adjacent side
tan(45) = 25 / 25
Since tan(45) = 1, we have 1 = 1, which confirms the angle is 45 degrees. Now, we can use the sine or cosine function to find the diagonal:
sin(45) = opposite side / hypotenuse
sin(45) = 25 / d
OR
cos(45) = adjacent side / hypotenuse
cos(45) = 25 / d
Both functions give us the same result since the angles are 45 degrees. Solving for 'd':
d = 25 / sin(45)
d ≈ 35.36 ft
So, the length of the diagonal of Stacy's ceiling is approximately 35.36 ft using both methods.
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Tell which property the statement illustrates.
(x + 2) + 5 = x + (2 + 5)
The given statement:
(x + 2) + 5 = x + (2 + 5)
illustrates the associative property of addition.
There are three properties of addition : Associative, commutative and identity.
The associative property of addition states that : (a+b)+c = a + (b+c)
The commutative property of addition states that : a + b = b + a
The identity property of addition states that : a + 0 = a.
Therefore, the statement is illustrating the associative property of addition.
Help me with these questions pls
The volume of the cones are;
1. 84. 78 in³
2. 564. 15 ft³
3. 4710 yd³
How to determine the value
The formula for calculating the volume of a cone is expressed as;
V = 1/3 πr²h
Given that;
r is the radius of the cone.h is the height of the coneFrom the information given, we have;
1. Volume = 1/3 × 3.14 × 3² × 9
Multiply the values and find the square
Volume = 254. 34/3
divide the values
Volume = 84. 78 in³
2. Volume = 1/3 × 3.14 × 7² × 11
Multiply the values
Volume = 1692. 46/3
Volume = 564. 15 ft³
3. Volume = 1/3 × 3.14 × 15² × 20
Multiply the values
Volume = 4710 yd³
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a) Factorise x²-2x-3
Answer:
Solution: (x-3)(x+1)
Step-by-step explanation:
1) Using Mid term break:
x²-2x-3
x²+x-3x-3
2) Take Common Factors from the two pairs
(x²+x) + (-3x-3)
x(x+1) -3(x+1)
3) Rewrite in Factored Form:
(x-3)(x+1)
Enter the value of c when the expression 21. 2x + c is equivalent of to 5. 3(4x - 2. 6).
The value of c is 21.8.
We can solve for c by simplifying the expression on the right side of the equation and equating it to the expression on the left side.
Starting with the right side, we distribute the 3 across the parentheses:
5 * 3 * (4x - 2.6) = 60x - 13
Now, we can set this equal to the expression on the left and solve for c:
21.2x + c = 60x - 13
c = 60x - 13 - 21.2x
c = 38.8x - 13
However, we are asked to find the value of c, not in terms of x. Since we were not given a specific value for x, we cannot solve for c exactly. Therefore, we can only express the value of c in terms of x, which is c = 38.8x - 13.
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The carbon monoxide wel wat is predicted to be 0.02.2+1 arts permitin), where is the population in thousands In was the population of the oty i predicted to be ) - 12 those perle Therefore, it was the one will be D) - 02/12 - 02.10 Find that which in de will be increasing in 2 years.
I apologize, but I am having trouble understanding your question. Can you please provide more context and clarity? Specifically, what do you mean by "carbon monoxide wel wat" and "arts permitin"? Additionally, what city or population are you referring to? Once I have a better understanding of your question, I will do my best to provide a helpful response.
Hi! It seems like the question is asking about the prediction of carbon monoxide levels in relation to population growth. Unfortunately, the text is a bit unclear, so I'll try my best to answer based on the provided information.
The given equation for carbon monoxide levels (CO) is: CO = 0.02(2 + P), where P is the population in thousands. To find the predicted increase in CO levels after 2 years, you would need to know the population growth rate or the population for those years. Please provide more information or clarify the question, and I'll be happy to help further
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How many numbers from 2 through 100 can be expressed as p², where p is a prime number?
F. 4
G. 5
H. 7
J. 8
K. 9