Answer:a
Step-by-step explanation:
it is 2.2360679775 which is in between 2.01 and 2.24
Answer: a. between 2.01 and 2.24
Step-by-step explanation:
√4=2
√9=3
9-4=5
5-4=1
1/5=0.2
√5=
√(4+1)=
√4+0.2=
2+0.2=2.2 ==> between 2.01 and 2.24: a
Simplify the expressions:
−8y³ x 5y8
Hi! Your answer is 11. When multiplying terms with exponents, the exponents add up.
Step-by-step explanation:
You want to multiply the terms with the exponents. You should get 3 and 8, add those up and you will get 11.
Hope this helps! Have a good day :)
7th- grade question
7. Billy cut the grass for 3/5 of an hour on Monday and 3/10 of an hour on
Tuesday. What fraction of an hour did he spend cutting grass for the two
days?
A. 1/5
B. 2/5
C. 5/10
D. 9/10
Answer:
The answer is c because if you multiply 3/5 and 3/10 by doing butterfligt
Evaluate-nx + x when x = 2.
Answer:
-2n + 2
Step-by-step explanation:
They give you the X value which is 2
All you do is substitute
-2n + 2
Hope this helped
center at (2, -2) and twice the area of the circle (x, -7)² + (y, -7)² =7
Answer:
[tex](x-2)^2+(y+2)^2=14[/tex]
Step-by-step explanation:
Equation of a circle
[tex](x-a)^2+(y-b)^2=r^2[/tex]
where:
(a, b) is the center of the circle.r is the radius of the circle.Given equation:
[tex](x-7)^2+(y-7)^2=7[/tex]
Therefore:
center = (7, 7)radius = √7Area of a circle
[tex]\sf A=\pi r^2[/tex]
where:
r is the radius.Therefore, the area of a circle with radius √7 is:
[tex]\implies \sf Area=\pi \left(\sqrt{7}\right)^2=7 \pi\:\:square\:units[/tex]
Therefore, a circle with twice the area would be:
[tex]\implies \sf Area = 2 \cdot 7 \pi = 14 \pi \:\: square\:units[/tex]
Therefore, its radius would be:
[tex]\begin{aligned}\implies \sf \pi r^2 & = \sf14 \pi\\\sf r^2 & = \sf 14\\\sf r & = \sf \sqrt{14}\end{aligned}[/tex]
So the equation of a circle with a center at (2, -2) and a radius of √14 is:
[tex]\implies (x-2)^2+(y-(-2))^2=\left(\sqrt{14}\right)^2[/tex]
[tex]\implies (x-2)^2+(y+2)^2=14[/tex]
A cube-shaped box has a side length of 6n³ centimeters. Amelia has several cube-shaped blocks with a side length of 2n centimeters that she needs to store in the box. what is the volume of one block? what is the volume of the box
The volume of blocks is 8n³ cm³ and volume of box is 216 n⁹ cm³.
According to the question we have been given that the
side length of the cube shaped box = 6n³ cm
side length of the cube shaped blocks = 2n cm
We need to find the volume of the box and the blocks.
The formula for the volume of cube is
V = (s)³ cubic units.
where, s = side length of the cube
Now putting the required values in the above formula we get
volume of box = (6n³)³ cm³
= 216 n⁹ cm³
volume of the blocks = (2n)³ cm³
= 8n³ cm³
Hence the volume of blocks is 8n³ cm³ and volume of box is
216 n⁹ cm³.
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Leah is training to run half marathon Her goal For training is to run 20 miles a week. she ran 3 1/2 Miles on Monday 4. 3/4 miles on Tuesday 5 miles on Wednesday And 4 miles On Thursday. how Many Miles will She Need to run On Friday In Order to meet her goal?
The number of miles she should run on Friday is 2 3/4 miles.
Given that, Leah is training to run a half marathon her goal training is to run 20 miles a week. she ran 3 1/2 miles on Monday 4 3/4 miles on Tuesday 5 miles on Wednesday and 4 miles on Thursday.
We need to find how many miles will she need to run on Friday in order to meet her goal.
How to add mixed fractions?Follow these steps to add mixed fractions:
Add the whole numbers together. Find the lowest common denominator (LCD) of both fractions. The LCD is the lowest number that is evenly divisible by both numbers.Convert the fractions to have the LCD as their denominator.Once you have a common denominator, the fractions can be added by simply adding the numerators.Now, the number of miles she ran together from Monday to Thursday
=3 1/2 + 4 3/4 + 5 + 4 =(3+4+5+4)(1/2 + 3/4)
=16 (2/4 + 3/4)
=16 5/4
=17 1/4
Remaining miles = 20-17 1/4
=20-69/4
=(80-69)/4
=11/4
=2 3/4
Therefore, the number of miles she should run on Friday is 2 3/4 miles.
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7 grade
1. Andrea walked 1/2 miles in 1/3 of an hour at a constant speed. What was that speed?
A. 1 miles per hour
B.1.25 miles per hour
C.1.5 miles per hour
D.2.5 miles per hour
Answer:
C
Step-by-step explanation:
0.5 of a mile in 20 minutes
60/20=3
0.5*3=1.5
Correct answer is C
HELP MEEEEE OUTTTT PLEASEEE
Answer:
other answer is right
Step-by-step explanation:
just answering so they can get brainliest:)
A manufacturer estimates his marginal cost and revenue at various levels of output to be the following. If fixed cost is 500, estimate, using the Simpsons rule, the total profit or loss of producing 100 units is Blank 1. Fill in the blank, read surrounding text.
GHC
q (units)
0
20
40
60
80
100
120
MC
260
250
240
200
240
250
270
MR
410
350
300
250
270
250
300
If the fixed cost is GHC500, the total profit or loss of producing 100 units is GHC 0.
What is the profit when MC = MR?When the marginal cost (MC) equals the marginal revenue (MR), the company breaks even, and from that point, profit maximization starts.
When MR is more than MC, the tendency is for the firm to produce more and earn more profit, and when MR is less than MC, the firm produces fewer as it incurs losses.
The profit maximization level occurs where the MR and the MC are equal.
Data and Calculations:Total revenue = fixed cost + variable cost (MR x Units)
Total revenue = 500 + (100 x 250)
Total revenue = 500 + 25,000
Total revenue = GHC 25,500
Total profit or loss at 100 units = GHC0 (GHC25,500 - GHC25,500)
GHC
q (units) 0 20 40 60 80 100 120
MC 260 250 240 200 240 250 270
MR 410 350 300 250 270 250 300
Thus, if the fixed cost is GHC500, the total profit or loss of producing 100 units is GHC 0.
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4x = y + 3
8x - 3= 2y
Graph the system
Which of the following expressions is equivalent to 9x-27
Answer:
3
Step-by-step explanation:
9x-27=0
+27. +27
9x=27
x=3
How many different 10-letter words (real or imaginary) can be formed from the following letters? E, T, A, R, N, I, T, C, F, R Question content area bottom Part 1 enter your response here ten-letter words (real or imaginary) can be formed with the given letters.
Answer:
10! or 3628800 words=============================
Given 10 letters and we are looking for the number of 10-letter words.
This is about the permutation of 10:
[tex]_{10}P_{10} = 10! = 3628800[/tex]A5.1 m long ladder is leaning against a
wall. The wall stands perpendicular to the
ground. The base of the ladder is 1.8 m
away from the wall.
Work out the size of the acute angle that
the ladder makes with the ground.
Give your answer in degrees to 1 d.p.
The acute angle the ladder makes with the ground is 69.3 degrees.
How to find the acute angles formed from the right triangle ?The ladder is 5.1 m and it is leaning against a wall.
The wall is perpendicular to the ground.
This means the ground forms 90 degrees with the wall.
This situation forms a right angle triangle.
Therefore, the acute angle the ladder forms with the ground can be found as follows:
Using trigonometric ratios,
cos ∅ = adjacent / hypotenuse
where
∅ = acute angle
Therefore,
adjacent side = 1.8 m
hypotenuse side = 5.1 m
Hence,
cos ∅ = 1.8 / 5.1
∅ = cos⁻¹ 0.35294117647
∅ = 69.3326835065
∅ = 69.3°
Therefore, the acute angle the ladder makes with the ground is 69.3 degrees.
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Aisha drove 17 miles in 3 hours. On average, how fast did she drive, in miles per
hour? Enter your answer as a whole number, proper fraction, or mixed number in
simplest form.
Answer: 5.6 repeating
Step-by-step explanation: No explanation added.
Which is the mean? a density curve that models the distribution of a quantitative variable shown here. identify the location of the mean and median by letter. justify your answer.
The location of the mean and median by letter are C and B, respectively
How to identify the location of the mean and median by letter?The given parameter is the density curve that models the distribution of a quantitative variable
From the density curve, we can see that:
The density curve is a right-skewed distribution
In a right-skewed distribution, the median is the middle line and the mean is to the right of the median
This means that
Median = B
Mean = C
Hence, the location of the mean and median by letter are C and B, respectively
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Chloe reads 7 pages of a mystery book in 9 minutes. What is her average reading rate in pages per
minute?
Answer:
1.25
Step-by-step explanation:
you have to take the 9 pages and divide by 7 and then divide that by 60 and u get 1.25
NEED OF IMMEDIATE HELP
Answer:
There are no sampling errors, as all numbers add up to 100, however, there is a bias, as the highest number is 52 for movies, and the person who conducted the survey was a movie theater manager to his own customers.
If Cindy shoots a ball at a basket 40 times
and scores 15 times, what is the
experimental probability of Cindy scoring?
Experimental probability of Cindy scoring=0.375
Probability:
Probability is always a number between 0 and 1, where 0 means an event is impossible and 1 means an event is certain.
The probabilities in a probability model must sum to 1.
When the outcomes of an experiment are all equally likely, we can find the probability of an event by dividing the number of outcomes in the event by the total number of outcomes in the sample space for the experiment.
To find the probability of the union of two events, we add the probabilities of the two events and subtract the probability that both events occur simultaneously.
To find the probability of the union of two mutually exclusive events, we add the probabilities of each of the events.
The probability of the complement of an event is the difference between 1 and the probability that the event occurs.
In some probability problems, we need to use permutations and combinations to find the number of elements in events and sample spaces.
Formula :
probability of an event with equally likely outcomes : [tex]\frac{n( experimental-event )}{n(total no. of event )}[/tex]
Given :
Total no. of event =Cindy shoots a ball at a basket 40 times
experimental event = 15 times
[tex]P(E)= \frac{15}{40} \\P(E)=\frac{3}{8} \\P(E)= 0.375\\[/tex]
experimental probability of Cindy scoring=0.375
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At the arcade, Ryan, Sara, and Tim played video racing games, pinball, and air hockey. Ryan spent $6 for 6 racing games, 2 pinball games, and 1 game of air hockey. Sara spent $12 for 3 racing games, 4 pinball games, and 5 games of air hockey. Tim spent $12.25 for 2 racing games, 7 pinball games, and 4 games of air hockey. How much did each of the games cost?
Answer: Racing $.50
Pinball $.75
Air Hockey $1.50
I need help I dot understand someone explain it step by step
Cyndee wants to invest $50,000. Her financial planner advises her to invest in three types of accounts: one paying 3%, one
paying 5%, and one paying 6% simple interest per year. Cyndee wants to put twice as much in the lowest-yielding, least-risky
account as in the highest-yielding account. How much should she invest in each account to achieve a total annual return of
$2120?
Answer:
$25,333.33 at 3%$12000 at 5%$12,666.67 at 6%Step-by-step explanation:
Cyndee invests $50,000 in accounts earning 3%, 5%, and 6% annually, for a total annual return of $2120. She puts twice as much in the first account as in the third. You want to know the amount invested in each account.
SetupLet x represent the amount invested in the third account. Then 2x is the amount invested in the first account, and (50000 -3x) is the amount invested in the second account. The total return is ...
0.03(2x) +0.05(50000 -3x) +0.06(x) = 2120
SolutionSimplifying the equation gives ...
-0.03x +2500 = 2120
380 = 0.03x . . . . . . . . . . add 0.03x-2120
12,666 2/3 = x . . . . . . . divide by 0.03
2x = 25,333 1/3
50000 -3x = 12,000
Cyndee should invest 25,333.33 at 3%, $12,000 at 5%, and $12,666.67 at 6%.
Multiply.
9/4 ⋅ 14
A. 23/4
B. 28
C. 63/2
D. I don't know.
Answer:
C. 63/2
Step-by-step explanation:
[tex] \frac{9}{4} \times 14 \\ = \frac{9}{4} \times \frac{14}{1} \\ = \frac{9 \times 7}{2} = \frac{63}{2} \\ please \: if \: found \: helpful \: rate \: brainliest.[/tex]
The answer is 63/2
I got 100% on the test
I hope this helps!
Proof that this answer is correct and not fake
Decide what values of the variable cannot possibly be solutions for the equation. Do not solve.
By inspecting the denominator, the values of x cannot be solutions of the rational equation are x₁ = - 3 and x₂ = 2.
What values does lead to an indetermination in a rational equation?
A rational equation is an expression of the P(x) / Q(x), where P(x) and Q(x) are the equations of the numerator and the denominator functions. The rational equation becomes undefined for all x-values such that Q(x) = 0. Then, we must look up for all values of x such that:
x² + x - 6 = 0
x² + [3 + (- 2)] · x - 6 = 0
x² - 2 · x + 3 · x - 6 = 0
x · (x - 2) + 3 · (x - 2) = 0
(x + 3) · (x - 2) = 0
x₁ = - 3 ∨ x₂ = 2
The values of x cannot be solutions of the rational equation are x₁ = - 3 and x₂ = 2.
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Please Help Me! Will be brainlest
E=-7g^4+3g^2h^2-11h^4
F=6g^4-13g^2h^2+8h^4
E+F=
The addition of the given expression "E = - 7g⁴ + 3g²h² - 11g⁴" and "F = 6g⁴ - 13g²h² + 8h⁴" is "- g⁴ - 10g²h² - 3g⁴"
ExponentE = - 7g⁴ + 3g²h² - 11g⁴
F = 6g⁴ - 13g²h² + 8h⁴
E + F = (- 7g⁴ + 3g²h² - 11g⁴) + (6g⁴ - 13g²h² + 8h⁴)
= - 7g⁴ + 3g²h² - 11g⁴ + 6g⁴ - 13g²h² + 8h⁴
collect like terms= -7g⁴ + 6g⁴ + 3g²h² - 13g²h² - 11g⁴ + 8h⁴
evaluate= - g⁴ - 10g²h² - 3g⁴
Therefore, the addition of the given expression "E = - 7g⁴ + 3g²h² - 11g⁴" and "F = 6g⁴ - 13g²h² + 8h⁴" is "- g⁴ - 10g²h² - 3g⁴"
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At the movie theatre, child admission is 5.50 and adult admission is 9.20. On Monday, three times as many adult tickets as child tickets were sold, for a total sales of 662.00 . How many child tickets were sold that day?
The sum of a daughter and mother's age is 55. The age of the daughter is the
mother's age reversed. Find the age of the daughter if the age of the mother is
greater than 40 years.
the weight of an organ in adult male has a bell shaped distribution with a mean of 300 grams and a standard deviation of 25 grams. Use the empirical rule to determine the following:
a.) About 95% of organs will be between what weights?
b.) What percentage of organs weighs between 225 grams and 375 grams?
c.) What percentage of organs weighs less than 225 grams or more than 275 grams?
d.) what percentage of organs weighs between 275 grams and 275 grams?
Using the Empirical Rule, it is found that:
a) About 95% of the organs will be between 250 and 350 grams.
b) 99.7% of organs weighs between 225 grams and 375 grams.
c) 84.15% of organs weighs less than 225 grams or more than 275 grams.
d) 0% of organs weight exactly 275 grams.
What does the Empirical Rule state?It states that, for a normally distributed random variable:
Approximately 68% of the measures are within 1 standard deviation of the mean.Approximately 95% of the measures are within 2 standard deviations of the mean.Approximately 99.7% of the measures are within 3 standard deviations of the mean.95% of the weights are within 2 standard deviations of the mean, hence:
300 - 2 x 25 = 250 grams.300 + 2 x 25 = 350 grams.About 95% of the organs will be between 250 and 350 grams.
For item b, the amounts are within 3 standard deviations of the mean, hence:
99.7% of organs weighs between 225 grams and 375 grams.
For item c, considering the symmetry of the normal distribution, we have that:
0.5 x 0.003 = 0.15% weigh less than 225 grams.0.5 x 68% + 50% = 84% weight more than 275 grams.Hence:
84.15% of organs weighs less than 225 grams or more than 275 grams.
For item d, considering that the normal distribution is continuous, the percentage of an exact value is 0, hence:
0% of organs weight exactly 275 grams.
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Answer this question please
'less than' corresponds to the < symbol, so the inequality is x<1.2. However, the weight cannot be negative or zero, so the inequality is 0<x<1.2.
In interval notation, this is (0, 1.2).
write an equation using f(x) notation to show how the numbers in the domain and the range are related {(1,2), (-2,-4), (3,6), (0,0)
Answer:
f(x) = 2x
Step-by-step explanation:
It is obvious that the relationship between x and y is y = 2x from the numbers given
So equation is f(x) = 2x
please help with this one! ASAP
Answer: 699 m^2
Step-by-step explanation: