Answer: 6000
Step-by-step explanation:
10 times 600
10 x 600
6000
Burt ran the length of the trail in his town’s park. There are 9 parts to the trail, and each part is the same length. Burt ran a total of 1.8 kilometers.
There are 9 parts to the trail, and each part is the same length. and hence each part of the trail is 0.2 kilometers long.
What is perimeter of rectangle?The following equation may be used to determine a rectangle's perimeter:
Perimeter is equal to 2 x (length + breadth).
where "length" denotes the rectangle's length and "width" denotes the rectangle's width. In order to account for both sides of the rectangle, we add the length and breadth together and multiply the result by 2, which is the distance around the outside of the rectangle.
The distance ran by Brurt is:
1.8 km ÷ 9 = 0.2 km
Hence, each part of the trail is 0.2 kilometers long.
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Your company must charge $100 for a software upgrade to make a profit on its development. You must find out if your customers are willing to pay this much. A random sample of 50 customers finds that 17 would pay $100 for the upgrade. If the upgrade is to be profitable, you will need to sell it to more than 20% of your customers. Do the sample data provide good evidence that more than 20% are willing to buy at the 5% level of significance?
a) State the appropriate null and alternative hypotheses. Explain how you decided the alternative.
b) Give the z statistic and its p-value for this test.
c) Should you proceed with plans to develop and market the upgrade? Explain in context of this hypothesis test.
d) Give the 90% confidence interval for the proportion of all customers willing to pay $100.00 for the upgrade. Explain how this supports your hypothesis test conclusion.
e) You company’s overseas division also took a random sample of 50 customers and found that 38 would pay the $100.00 upgrade. Explain why or why not these two populations are different.
a. Hypotheses are: [tex]\rm H_{0}:p=0.20,H_{a}:p > 0.20[/tex]
b. Z-statistics will be 2.47 and p-value = 0.0068
c. you should proceed with plans to develop and market the upgrade.
d. Confidence interval for population proportion will be (0.23, 0.45)
e. The populations are different because they are frοm different regiοns sο prefrences οf peοple may different.
What is Probability?Probability is a mathematical concept that measures the likelihood or chance of an event occurring. It is a number between 0 and 1, where 0 indicates that the event is impossible and 1 indicates that the event is certain.
a. Hypotheses are:
[tex]\rm H_{0}:p=0.20,H_{a}:p > 0.20[/tex]
b) Here we have following information:
[tex]\rm n=50, \hat{p}=\frac{17}{50}=0.34[/tex]
Standard deviation of the proportion is:
[tex]\rm \sigma=\sqrt{\frac{p\left ( 1-p \right )}{n}}=\sqrt{\frac{0.20\left ( 1-0.20 \right )}{50}}=0.0566[/tex]
Test statistics will be:
[tex]$ \rm z=\frac{\hat{p}-p}{\sigma}=\frac{0.34-0.20}{0.0566}=2.47[/tex]
Alternative hypothesis shows that the test is right tailed so p-value of the test is
[tex]\rm p-value = P(z > 2.47) = 1 - P(z \leq 2.47)=1-0.9932=0.0068[/tex]
c. Since p-value of the test is less than 0.05 so we reject the null hypothesis at 0.05 level of significance. So based on this sample, you should proceed with plans to develop and market the upgrade.
d. For 90% confidence interval [tex]\alpha[/tex] = 0.10 so critical value of z will be[tex]\rm z_{c}=z_{\alpha/2}=1.645[/tex]
Confidence interval for population proportion will be
[tex]\rm \hat{p}\pm z_{c}\sqrt{\frac{\hat{p}\left ( 1-\hat{p} \right )}{n}}=0.34\pm 1.645\sqrt{\frac{0.34\left (1-0.34 \right )}{50}}=0.34\pm 0.11 =(0.23, 0.45)[/tex]
e. The populations are different because they are frοm different regiοns sο prefrences οf peοple may different.
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2. Using the link on the activity page, cut out each net. Fold and tape each net into a
solid. Your solids do not need to be perfect. (9 points: 3 points for
three-dimensional
each solid)
To fold and tape a net into a solid shape, cut out the net, fold it along the lines, tape the edges together, and flatten the edges
Instructions for Folding and Taping a Net into a Solid ShapeThe net cannot be fold and tape as it is given as a picture, however the general steps to fold and tape a net into a solid shape:
Choose a netCut out the net: Cut out the net along the lines so that you have a flat, two-dimensional shape.Fold along the lines: Fold the net along the lines indicated on the paper. Tape the edges: Use small pieces of clear tape to connect the edges of the net together, forming a solid shape.Flatten the edges: After taping, you may notice that some edges of the solid shape are not lying flat.When the above stapes are followed, some of the nets that can be gotten from the given shape are triangular pyramids and triangles
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Assume the random variable x is normally distributed with mean u=89 and standard deviation o=4. Find the indicated probability. P(x<87)
The random variable x is normally distributed with mean u=89 and standard deviation o=4. The indicated probability, P(x<87)= 0.3085.
Describe Standard Deviation?In statistics, standard deviation is a measure of the amount of variation or dispersion in a set of data. It is a commonly used measure of the spread of a distribution and is calculated as the square root of the variance.
A higher standard deviation indicates that the data points are more spread out from the mean, while a lower standard deviation indicates that the data points are more tightly clustered around the mean.
Standard deviation is an important concept in statistics and is used in many statistical analyses, such as hypothesis testing and confidence interval estimation. It is also used in finance and economics to measure the risk associated with investments and to assess the variability of economic data.
To solve this problem, we need to standardize the value using z-score formula.
z = (x - mu) / sigma
Here, x = 87, mu = 89, and sigma = 4.
z = (87 - 89) / 4 = -0.5
We can look up the corresponding area under the standard normal distribution curve using a table or calculator. The area to the left of z = -0.5 is 0.3085.
Therefore, P(x < 87) = P(z < -0.5) = 0.3085.
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Find the probability of exactly 4 successes in 7 trials of a binomial experiment in which the probability of success is 55%. P = [?]% Round to the nearest tenth of a percent. Enter
the probability of exactly 4 successes in 7 trials of a binomial experiment in which the probability of success is 55% is 0.29 = 29%
A binomial experiment is an experiment that has the following four properties:
The experiment consists of n repeated trials
Each trial has only two possible outcomes
The probability of success, denoted p, is the same for each trial
Each trial is independent
the probability of exactly 4 successes in 7 trials of a binomial experiment in which the probability of success is 55%
We know that the binomial distribution
[tex]^nc_rp^rq^{n-r[/tex]
Where n is the number of trails
p is the probability of success in each trial
q =1-p which is the probability of failure
Here r=4
n=7
p= 55 % =0.55
then by the formula
[tex]p(4)=^7c_4(o.55)^4(0.45)^3\\\\p(4)=35*0.091*0.091\\p(4)=0.29[/tex]
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translate the triangle 3 to the right and 2 down
According to the assumption the translated triangle would have vertices at (4,0), (6,2), and (5,-1).
Given,
To translate a triangle 3 units to the right and 2 units down, we would take each point of the original triangle and add 3 to the x-coordinate and subtract 2 from the y-coordinate.
For example, if the original triangle has vertices at (1,2), (3,4), and (2,1), the translated triangle would have vertices at:
(1+3, 2-2) = (4,0)
(3+3, 4-2) = (6,2)
(2+3, 1-2) = (5,-1)
So, the translated triangle would have vertices at (4,0), (6,2), and (5,-1).
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A group of people were asked if they had run a red light in the last year. 348 responded "yes", and 400 responded "no".
The probability of people who run red lights is
=0.465
Probability is the measure of the likelihood or chance that an event will occur.
Probability = Possible outcome of an event ÷ Total outcome
Total number of people asked if they had run a red light = number of people that responded 'yes' + number of people that responded 'no'
Total outcome = 348+400
Total outcome = 748
Possible outcome = number of people that responded yes = 394
The probability that if a person is chosen at random, they have run a red light in the last year will be
[tex]=\frac{348}{748}\\\\=0.465[/tex]
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Solve for ∠A
. Round your answer to the nearest tenth.
∠A
= degrees
(60 points)
Answer:
∠A = 48.2
Step-by-step explanation:
Cos^-1(6/9
Use the Cosine with the negative one because you are finding an angle. Then, because Cosine is adjacent/hypotenuse, 6 would be your adjacent side length to theta and 9 would be the hypotenuse as it is across from the right angle.
Bob runs an auto repair shop. Over 6 months, he finds that out of 700 cars that are brought in, 144 require more than one day to repair. Based on this information, what is the probability that the next car brought to his shop can be fixed in a day? Responses 20.6% 20.6% 55.6% 55.6% 79.4% 79.4% 82.9%
The answer to the given question about probability of Bob's shop is option 7) 79.4%.
Out of 700 cars, 144 require more than one day to repair. So the number of cars that can be fixed in one day is
700 - 144 = 556.
The probability that the next car brought to the shop can be fixed in a day is the ratio of the number of cars that can be fixed in a day to the total number of cars:
probability = 556/700
= 0.794 or 79.4%
Therefore, the correct answer is option 7) 79.4%.
Probability is a branch of mathematics that deals with the study of random events or phenomena. It is used to quantify the likelihood of an event occurring, and it is expressed as a number between 0 and 1, with 0 indicating that the event is impossible and 1 indicating that the event is certain. Probability theory is widely used in various fields, such as statistics, physics, economics, and finance, to make predictions and decisions based on uncertain or incomplete information. It provides a powerful tool for analyzing and understanding uncertainty, risk, and randomness in real-world situations, and it has numerous practical applications in diverse areas of research and industry
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In ΔMNO, m ∠ � = ( 4 � − 13 ) ∘ m∠M=(4x−13) ∘ , m ∠ � = ( 2 � − 13 ) ∘ m∠N=(2x−13) ∘ , and m ∠ � = ( 5 � + 19 ) ∘ m∠O=(5x+19) ∘ . Find m ∠ � . m∠N.
The value of m∠N is 21° ,the value of m∠M is 55° and the value m∠O is 106°.
To find the value of x, we can use the fact that the sum of the angles in a triangle is 180 degrees. Therefore:
m∠M + m∠N + m∠O = 180
Substituting the given angle measures, we get:
(4x-13) + (2x-13) + (5x+19) = 180
Simplifying the equation, we get:
11x - 7 = 180
11x = 187
x = 17
Now that we know the value of x, we can find the measure of each angle. Substituting x = 17, we get:
m∠M = (4x-13) = (417-13) = 59 degrees
m∠N = (2x-13) = (217-13) = 21 degrees
m∠O = (5x+19) = (5*17+19) = 106 degrees
Therefore, the measure of ∠MNO is:
m∠N = 21 degrees
Note: The question also asks for the measure of ∠P, but there is no information given about ∠P in the problem.
In AMNO, m angle M = (4x - 13) deg m angle N = (2x - 13) deg and m angle O = (5x + 19) deg Find m/N.
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34kg of apples cost $374. how many kilograms of apples can you get with $220
Answer:
20 kilograms.
Step-by-step explanation:
First, we need to find the cost per kilogram.
We can do this by dividing 374 by 34.
That gives us 11. So, our cost per kilogram is $11.
Next, to find how many kilograms we can get with $220 dollars, we need to divide 220 by 11.
That leaves us with a final answer of 20 kilograms.
Which equation of a circle has the center, C, and radius, r, as shown in the graph?
The equation of a circle given by the graph is (x-3)²+(y+2)²=29,
hence option b is correct.
A circle is a closed curve that extends outward from a set point known as the center, with each point on the curve being equally spaced from the center. A circle with an (h, k) center and a radius of r has the equation:
(x-h)² + (y-k)²= r²
This is the equation's standard form. Hence, we can quickly determine the equation of a circle if we know its radius and center coordinates.
We know that the equation of the circle is -
[tex](x-h)^2+(y-k)^2=r^2[/tex]
where (h,k) is the center of the circle and r is the radius,
given that,
center of the circle is = (3,-2)
and the radius is=√29
Hence the equation of a circle is
[tex](x-3)^2+(y+2)^2=(\sqrt29)^2\\\\(x-3)^2+(y+2)^2=29[/tex]
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Question 7 of 10
In the triangle below, b=_ If necessary, round your
answer to two decimal places.
A
33.7°
C
Answer here
8
26.4
24
SUBMIT
the length of the missing side is approximately 4.73 units. Rounded to two decimal places, the answer is 4.73.
How to solve the problem?To solve this problem, we can use the Law of Sines, which states that the ratio of the length of a side of a triangle to the sine of the angle opposite that side is the same for all sides and angles in the triangle.
Let's label the missing side as b, and use sin(A) = opposite/hypotenuse to find the length of the side opposite angle A:
sin(A) = opposite/hypotenuse
sin(33.7°) = b/8
b = 8 × sin(33.7°)
b ≈ 4.726
Therefore, the length of the missing side is approximately 4.73 units. Rounded to two decimal places, the answer is 4.73.
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2. (a) Arnold walked a distance of 50km due north. He continued to move 25km due east.
Sketch a diagram to illustrate the Arnold's movement from the starting point.
Find correct to the nearest whole number the distance between where he started the
journey and where he ended the journey
The bearing of his starting point from his end point.
Answer:
Step-by-step explanation:
The sketch is a right-angled triangle.
We can use Pythagoras' theorem.
[tex]z^{2} =x^{2} +y^{2}[/tex]
z=√(50^2+25^2)
z= 25√5
z=25*2.23
z=55.75
z≈56km
the distance between where he started the
journey=56km
tan(90-Θ)=25/50
cotΘ=1/2
tanΘ=2
Θ=[tex]tan^{-1} (2)[/tex]
bearing of his starting point from his end point[tex]tan^{-1} (2)[/tex]
I need help with this please
Answer: 384 cm cubed
Step-by-step explanation: The first thing you will do is 48 square centimeters times 8 cm. Since 48 is squared you have that 2 right above it. Your 8 technically has a 1 above it. So add the 2 and the 1, and you will get cubed. (AKA 3)
In 2002 you could buy a Broadway show ticket for $40. Use the CPI chart below to find the cost of Broadway show in 2014 based on inflation
The cost of a Broadway show ticket in 2014, based on inflation, would be approximately $52.59.
What is inflation?Inflatiοn, in general, is the prοcess thrοugh which mοney lοses value οver time. As a result, 100 dοllars suddenly have less purchasing pοwer than they had previοusly. This indicates that the awards will increase tο maintain a steady purchasing pοwer.
Tο find the cοst οf a Brοadway shοw ticket in 2014, we need tο adjust the price frοm 2002 using the Cοnsumer Price Index (CPI) fοr each year. The CPI measures the changes in the cοst οf gοοds and services οver time due tο inflatiοn.
Here is the CPI data for the relevant years:
2002 CPI: 179.9
2014 CPI: 236.7
To adjust the 2002 price of $40 to its equivalent in 2014 dollars, we can use the following formula:
Adjusted Price in 2014 Dollars = Price in 2002 Dollars x (CPI in 2014 / CPI in 2002)
Plugging in the numbers, we get:
Adjusted Price in 2014 Dollars = $40 x (236.7 / 179.9) = $52.59
Therefore, the cost of a Broadway show ticket in 2014, based on inflation, would be approximately $52.59.
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Complete question:
In 2002 you could buy a Broadway show ticket for $40. Use the CPI chart below to find the cost of Broadway show in 2014 based on inflation.
One plumbing job requires 45 meters of PVC pipe, and a second job requires 30 meters. The pipe comes in 6-meter lengths only. How many sections should the plumber buy? How much pipe will be left over, assuming that there are no errors?
a) The plumber should buy 13 sections of 6-meter lengths of PVC pipes.
b) Assuming that there are no errors, the left-over pipe after satisfying Jobs A and B should be 3 meters.
How the quantities are determined:We can use mathematical operations of addition, division, multiplication, and subtraction to determine the two quantities above.
In the first place, the total quantity of PVC pipes required is 75 meters.
This sum is divided by 6 to obtain the sections required, which is approximated to the nearest whole number.
Finally, 75 meters are subtracted from the total quantity bought.
PVC pipes required by Job A = 45 meters
PVC pipes required by Job B = 30 meters
The total quantity of PVC pipes required = 75 meters
The length of each PVC pipe = 6 meters
The number of pipes to buy = 13 sections (75 ÷ 6)
13 sections of pipes = 78 (6 x 13)
Leftover PVC pipes = 3 meters (78 - 75)
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Determine if (0,3)
is a solution to y>2
. If so, graph the inequality.
An image of a coordinate plane shows a dashed line with a positive slope. The line crosses the y-axis at (0, 2) and passes through the point (negative 2, negative 2). The area above and to the left of the line is shaded.
An image of a coordinate plane shows a dashed vertical line. The line crosses the x-axis at (2, 0) and passes through the points (2, negative 2) and (2, 2). The area to the right of the line is shaded.
is not a solution.
An image of a coordinate plane shows a dashed horizontal line. The line crosses the y-axis at (0, 2) and passes through the points (2, 2) and (negative 2, 2). The area above the line is shaded.
Answer:
To determine if (0,3) is a solution to y>2, we need to check if y is greater than 2 when x=0 and y=3. Since 3 is greater than 2, the point (0,3) satisfies the inequality y>2.
To graph the inequality y>2, we need to shade the region above the horizontal line y=2. The line y=2 is a solid line since it includes the points where y=2, but the region above the line is shaded with a dashed line since it does not include the points where y=2.
Here is a description of the graph:
Draw a horizontal line passing through the point (0,2).
Shade the region above the line with a dashed line.
The graph visually represents all the points that satisfy the inequality y>2. Since the point (0,3) is above the line, it is part of the shaded region and satisfies the inequality.
What is the probability of getting a even number from the bag
Answer: The actual answer is 7/12, but the closest match is (A) 1/2.
The sum of 1/2 and 2/3 is ______1. a. equal to b. less than c. greater than
Answer:
c. greater than
Step-by-step explanation:
[tex]\frac{1}{2}[/tex] + [tex]\frac{2}{3}[/tex] = [tex]\frac{3}{6}[/tex] + [tex]\frac{4}{6}[/tex] = [tex]\frac{7}{6}[/tex] ≈ 1.167
1.167 > 1
So, the answer is c. greater than
A scientist was in a submarine, 52.3 feet below sea level, studying ocean life. Over the next ten minutes, she went down 21.5 feet. How many feet was she now below sea level?
After descending [tex]21.5[/tex] feet, the scientist's new position in the submarine would be [tex]30.8[/tex] feet below sea level.
What is the sea level?The scientist was initially in a submarine, located 52.3 feet below sea level. This means that her position was [tex]52.3[/tex]feet lower than the surface of the sea.
Over the next ten minutes, the scientist descended further into the ocean by [tex]21.5[/tex] feet. This means that she traveled down an additional [tex]21.5[/tex]feet from her initial position.
To calculate her new position below sea level, we can subtract the distance she traveled downward (21.5 feet) from her initial position (52.3 feet below sea level).
[tex]52.3 feet - 21.5 feet = 30.8 feet[/tex]
Therefore, after descending 21.5 feet, the scientist's new position in the submarine would be 30.8 feet below sea level.
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The _______________ is a collection of people and companies where shares in the various companies are bought, sold, and traded.
A. Life Insurance Company
B. Savings Institution
C. Stock Market
D. Bonds
Answer:
C) Stock Market.
Brainly wants me to put at least 20 characters and since I only provided the answer choice and was too lazy to do an explanation I am putting this here.
Answer:
C) Stock Market.
Step-by-step explanation:
The term stock market refers to several exchanges in which shares of publicly held companies are bought and sold.
The center of the circle is shown.
9
What is the exact area of the circle?
324n
18n
9r
81n
Answer:
The area is (9^2)π = 81π.
Eric had a box of 24 candy bars that he planned to sell for 63 cents each. Unfortunately, his sister ate 7 of his candy bars before he started selling them. In order to bring in the same amount of money as he would have if his sister had not eaten any of the candy bars, what price (in cents) should he charge for each of the remaining candy bars?
The price (in cents) should he charge for each of the remaining candy bars 49
First, we would want to calculate how much the box would sell for before the sister ate some.
We would get 24*63(in cents) and we can further get 1512 cents before the sister ate the candy bars.
The sister ate 7 candy bars leaving us with 31 candy bars. To deduct the price for each candy bar, it would be a situation like the following:
$6 for 3 boxes of 500 cookies (i know that's cheap)
6/3...
$2 per box.
Using our situation we get 1512 cents for 31 candy bars.
1512÷31
=48.77
That does seem unrealistic, so we round to the nearest whole number and we get...
49 cents
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3.
The formula for converting Fahrenheit temperature to centigrade is °C
=% (°F - 32). What is the difference in centigrade degrees between a
temperature of 60°F and a temperature of 78°F?
25
A. 1°C
B. 5°C
C. 10°C
D. 18°C
The difference in centigrade degrees between a temperature of 60°F and a temperature of 78°F is 10°C.
Calculating the difference between the temperaturesTo convert Fahrenheit (°F) to Celsius (°C), you can use the following formula:
°C = (°F - 32) / 1.8
Using this formula, we can first convert 60°F to Celsius:
°C = (60°F - 32) / 1.8
°C = (28°F) / 1.8
°C = 15.56°C
Similarly, we can convert 78°F to Celsius:
°C = (78°F - 32) / 1.8
°C = (46°F) / 1.8
°C = 25.56°C
The difference in Celsius degrees between these two temperatures is:
Δ°C = 25.56°C - 15.56°C
Δ°C = 10°C
Therefore, the difference in centigrade degrees between a temperature of 60°F and a temperature of 78°F is 10°C.
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PLEASE HELPPPP GIVNG BRAINLIESt
MNOP is a trapezium. If MN//OP and A is the midpoint of NO prove : Area of triangle MAP = 1/2area of trapezium MNOP
To prove: Area of triangle MAP = 1/2 area of trapezium MNOP
Given: MN//OP and A is the midpoint of NO
Proof:
Let h be the height of trapezium MNOP.
The area of trapezium MNOP is given by:
Area of trapezium MNOP = (1/2) × (MN + OP) × h
Since MN//OP, we have MN = OP.
Therefore, Area of trapezium MNOP = (1/2) × 2MN × h = MN × h
Now, consider triangle MAP.
The base of triangle MAP is MA, which is half of NO.
Therefore, the base of triangle MAP is (1/2) × NO.
The height of triangle MAP is h, which is the same as the height of trapezium MNOP.
Therefore, the area of triangle MAP is given by:
Area of triangle MAP = (1/2) × (base) × (height) = (1/2) × (1/2NO) × h
Substituting NO = 2OA, we get:
Area of triangle MAP = (1/2) × (1/2 × 2OA) × h = (1/2) × OA × h
Since A is the midpoint of NO, we have OA = 1/2NO.
Therefore, Area of triangle MAP = (1/2) × (1/2NO) × h = (1/2) × (base of trapezium MNOP) × h
Hence, Area of triangle MAP = 1/2 Area of trapezium MNOP.
Therefore, the given statement is proved.
Answer: Given that MNOP is a trapezium with MN parallel to OP and A is the midpoint of NO.
To prove that the area of triangle MAP is half the area of trapezium MNOP, we need to use the following theorem:
Theorem: If a line segment joins the midpoint of one side of a triangle to a vertex opposite to that side, then the segment divides the triangle into two equal areas.
Proof:
Since A is the midpoint of NO, we can draw a line segment AP from vertex P to point A on NO as shown in the figure below:
css
Copy code
M _______N
|\ |
| \ |
| \ |
| \|
O--------P
A
We can see that triangle MAP is formed by the line segment AP and side MP of the trapezium.
Also, we can see that triangle MAN is congruent to triangle NOP because they are both right triangles with corresponding sides parallel. Therefore, they have the same area.
Since MNOP is a trapezium, the area of trapezium is given by:
Area of trapezium MNOP = (1/2)(MN+OP) × height
Since MN is parallel to OP, the height of the trapezium is the same as the height of triangle MAN and NOP.
Therefore, the area of trapezium MNOP can be written as:
Area of trapezium MNOP = (1/2)(MN+OP) × height
= (1/2)(MA+AP+OP) × height
= (1/2)(MA+MP) × height (Since AP = NO/2 = height)
So, we have proved that:
Area of trapezium MNOP = (1/2)(MA+MP) × height
Using the theorem, we know that AP divides triangle MAP into two equal areas. Therefore,
Area of triangle MAP = (1/2) × Area of triangle MAP
Substituting the above in the expression for the area of trapezium, we get:
Area of trapezium MNOP = Area of triangle MAP + (1/2) × Area of triangle MAP
= (3/2) × Area of triangle MAP
Therefore, we have:
Area of triangle MAP = (1/2) × Area of trapezium MNOP
Thus, we have proved that the area of triangle MAP is half the area of trapezium MNOP.
Step-by-step explanation:
The volume of a rectangular prism is 6,142.5 cm3. If the height is 16.25 cm and the length is 28 cm, what is the value of the width?
13.125 cm
13.25 cm
13.5 cm
13.75 cm
Answer:
A. 13.125cm
Step-by-step explanation:
To solve for the width of the rectangular prism, we can use the formula for the volume of a rectangular prism, which is:
volume = length x width x height
We are given that the volume is 6,142.5 cm^3, the height is 16.25 cm, and the length is 28 cm. Let's substitute these values into the formula and solve for the width:
6,142.5 cm^3 = 28 cm x width x 16.25 cm
Dividing both sides by (28 cm x 16.25 cm), we get:
width = 6,142.5 cm^3 / (28 cm x 16.25 cm)
= 13.125 cm
Therefore, the width of the rectangular prism is 13.125 cm. So, the correct answer is A) 13.125 cm.
what is 95.2% confidence interval in z-score
A 95.2% confidence interval in z-score is a range of values that is likely to contain the true population mean with a probability of 95.2%. The z-score for a 95.2% confidence interval is approximately ±1.97.
To calculate the 95.2% confidence interval in z-score, we can use the following formula:
CI = X ± z × (σ/√n)
where X is the sample mean, σ is the population standard deviation, n is the sample size, and z is the critical value from the standard normal distribution table.
For a 95.2% confidence interval, the area in the tails of the standard normal distribution is 0.024 (0.5 - 0.952/2). Therefore, the critical z-value for a 95.2% confidence interval is approximately ±1.97.
This formula assumes that the sample follows a normal distribution, or that the sample size is large enough to satisfy the central limit theorem.
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(5, 5, 6, 9, 9, 11, 13}
This set has two_____
-medians
-means
-modes
Answer:
modes
Step-by-step explanation:
The only one of the three (median, mode, mean) that there can be more than one for a set is the mode, and in fact it has two modes: 5 and 9.
Answer: modes
On 36 acres of land , there are a total of 2808 trees. If the trees are sread out evenly , how many trees are on each acre of land ?
There are approximately 78 trees on each acre of land when the trees are spread out evenly.
To find the number of trees on each acre of land mathematically, we can use the formula for average or mean.
The average number of trees per acre can be found by dividing the total number of trees by the total number of acres. In this case, we have 2808 trees and 36 acres:
Average number of trees per acre = Total number of trees / Total number of acres
Average number of trees per acre = 2808 / 36
Average number of trees per acre = 78
Therefore, there are approximately 78 trees on each acre of land when the trees are spread out evenly.
This means that if the land is divided into 36 equal sections, each section will have approximately 78 trees.
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