1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
hammer [34]
3 years ago
14

Kerry bought a conical tent to put on the back porch. The tent instructions reveal the height at the tallest point to be 4.5 fee

t and the space inside to be 10.5 cubic feet. About how many square feet of the back porch will be covered by the tent? Which measure of the cone needs to be calculated to answer the problem? Which equation represents the scenario? How many square feet of the back porch will the tent cover?
Mathematics
1 answer:
IrinaVladis [17]3 years ago
5 0

Answer:

Kerry bought a conical tent to put on the back porch. The tent instructions reveal the height at the tallest point to be 4.5 feet and the space inside to be 10.5 cubic feet. About how many square feet of the back porch will be covered by the tent?

Which measure of the cone needs to be calculated to answer the problem?

Base Area

Which equation represents the scenario?

10.5=(1/3)B(4.5)

How many square feet of the back porch will the tent cover?

7 square feet

Step-by-step explanation:

You might be interested in
I need help on this. I will give you the brainliest
Ludmilka [50]

Answer:

4x-3y= 36-12=24 make me the brainlest

7 0
3 years ago
The following 5 questions are based on this information: An economist claims that average weekly food expenditure of households
liq [111]

Answer:

Null hypothesis:\mu_{1}-\mu_{0}\leq 0

Alternative hypothesis:\mu_{1}-\mu_{2}>0

SE=\sqrt{\frac{12.5^2}{35}+\frac{9.25^2}{30}}=2.705

b) 2.70

t=\frac{(164-159)-0}{\sqrt{\frac{12.5^2}{35}+\frac{9.25^2}{30}}}=1.850

b. 1.85

p_v =P(Z>1.85)=0.032

b. 0.03

a. We can reject H(0) in favor of H(a)

Step-by-step explanation:

Data given and notation

\bar X_{1}=164 represent the mean for the sample 1

\bar X_{2}=159 represent the mean for the sample 2

\sigma_{1}=12.5 represent the population standard deviation for the sample 1

s_{2}=9.25 represent the population standard deviation for the sample B2

n_{1}=35 sample size selected 1

n_{2}=30 sample size selected 2

\alpha=0.05 represent the significance level for the hypothesis test.

t would represent the statistic (variable of interest)

p_v represent the p value for the test (variable of interest)

State the null and alternative hypotheses.

We need to conduct a hypothesis in order to check if the expenditure of households in City 1 is more than that of households in City 2, the system of hypothesis would be:

Null hypothesis:\mu_{1}-\mu_{0}\leq 0

Alternative hypothesis:\mu_{1}-\mu_{2}>0

We know the population deviations, so for this case is better apply a z test to compare means, and the statistic is given by:

z=\frac{(\bar X_{1}-\bar X_{2})-0}{\sqrt{\frac{\sigma^2_{1}}{n_{1}}+\frac{\sigma^2_{2}}{n_{2}}}} (1)

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine whether the means of two groups are equal to each other".

Standard error

The standard error on this case is given by:

SE=\sqrt{\frac{s^2_{1}}{n_{1}}+\frac{s^2_{2}}{n_{2}}}

Replacing the values that we have we got:

SE=\sqrt{\frac{12.5^2}{35}+\frac{9.25^2}{30}}=2.705

b. 2.70

Calculate the statistic

We can replace in formula (1) the info given like this:

t=\frac{(164-159)-0}{\sqrt{\frac{12.5^2}{35}+\frac{9.25^2}{30}}}=1.850  

P-value

Since is a one side right tailed test the p value would be:

p_v =P(Z>1.85)=0.032

b. 0.03

Conclusion

If we compare the p value and the significance level given \alpha=0.05 we see that p_v so we can conclude that we have enough evidence to reject the null hypothesis.

a. We can reject H(0) in favor of H(a)

4 0
3 years ago
Sebastian went hiking near his house.The first trail he hiked on took him 4.5 miles away from his house. The second trail he hik
Sveta_85 [38]

Answer:

               <u>Sebastian is 3.8 miles away from his house.</u>

Step-by-step explanation:

4.5 - 2.4 + 1.7

2.1 + 1.7

= 3.8

- Sebastian is 3.8 miles away from his house.

4 0
3 years ago
Read 2 more answers
A fudge company makes 4 pounds of fudge. A worker separates the fudge into packages of ¼ of a pound of fudge each. How many pack
mezya [45]

Answer:

1/6

Step-by-step explanation:

8 0
3 years ago
A tourist group arrived at the boat dock for a boat ride in the morning. There were 252 people in the group. Another tourist gro
4vir4ik [10]
Its 15 boats bcuz...252+288=540 and 540/36= 15 boats :D
5 0
3 years ago
Other questions:
  • Please help with this, will give brainliest answers. thanks!
    11·1 answer
  • Mr. Marsh tells his class that he is thinking of two numbers and wants his students to guess the numbers. He gives them the foll
    5·1 answer
  • jordan bought 12 tennis balls and annika bought 16. the tennis balls come in packages. each package has the same number. what is
    11·1 answer
  • A leasing agent makes $23 an hour for the first 10 hours he works during a
    5·1 answer
  • If matt filled a 2 1/5 cup container, how many 1/5 cups would he need to use?
    9·2 answers
  • Someone help please
    15·2 answers
  • Can anyone help me with this?​
    9·2 answers
  • What is 3.5 divided by 7
    14·2 answers
  • Use the table to work out the values of a, b, c, and d.​
    9·2 answers
  • Given the picture of two intersecting lines, what is the value of x?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!