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
777dan777 [17]
3 years ago
9

I don’t get this question can anybody help?

Mathematics
2 answers:
Neko [114]3 years ago
5 0
C hope I helped you good luck
miv72 [106K]3 years ago
4 0

Answer:

50.24 sq yd

Step-by-step explanation:

To find the area of a circle, you have to use the formula A=(Pi)r^2

You might be interested in
How many sections are there when you fold a paper 8 times
VikaD [51]
32 if you fold it 4 times and times that by 2 it will be 32

5 0
3 years ago
Read 2 more answers
A local car dealer claims that 25% of all cars in San Francisco are blue. You take a random sample of 600 cars in San Francisco
sammy [17]

Answer:

No, we can't reject the dealer's claim with a significance level of 0.05.

Step-by-step explanation:

We are given that a local car dealer claims that 25% of all cars in San Francisco are blue.

You take a random sample of 600 cars in San Francisco and find that 141 are blue.

<u><em>Let p = proportion of all cars in San Francisco who are blue</em></u>

SO, Null Hypothesis, H_0 : p = 25%   {means that 25% of all cars in San Francisco are blue}

Alternate Hypothesis, H_A : p \neq 25%   {means that % of all cars in San Francisco who are blue is different from 25%}

The test statistics that will be used here is <u>One-sample z proportion</u> <u>statistics</u>;

                                  T.S.  = \frac{\hat p-p}{{\sqrt{\frac{\hat p(1-\hat p)}{n} } } } }  ~ N(0,1)

where, \hat p = sample proportion of 600 cars in San Francisco who are blue =   \frac{141}{600} = 0.235

            n = sample of cars = 600

So, <u><em>test statistics</em></u>  =  \frac{0.235-0.25}{{\sqrt{\frac{0.235(1-0.235)}{600} } } } }

                               =  -0.866

<em>Now at 0.05 significance level, the z table gives critical values of -1.96 and 1.96 for two-tailed test. Since our test statistics lies within the range of critical values of z so we have insufficient evidence to reject our null hypothesis as it will not fall in the rejection region due to which we fail to reject our null hypothesis.</em>

Therefore, we conclude that 25% of all cars in San Francisco are blue which means the dealer's claim was correct.

4 0
3 years ago
What is the equation of the line that best fits the given data? A graph has points (1, 7), (1, 6), (2, 5), (2.5, 5), (3, 3), (4,
Mice21 [21]

answer is d

Step-by-step explanation:

hope it is helpful

6 0
3 years ago
If a set of test scores has a large range but a small standard deviation, describe what this means about students' performance o
Dafna11 [192]

Answer:

C

Step-by-step explanation:

6 0
1 year ago
Izzy is calculating the amount of time it takes a rocket to get to the moon. The moon is around 239,000 miles from Earth. How ma
denis23 [38]
8 hours
Hope it help
3 0
3 years ago
Read 2 more answers
Other questions:
  • What is the y-intercept?
    6·1 answer
  • CONVERT TO SCIENTIFIC NOTATION:
    6·1 answer
  • 20.57 is 42.5% of ______.
    6·1 answer
  • Graph the solution set for this inequality:<br> -6x - 3y greater than or equal to -18
    8·1 answer
  • Calculate
    9·1 answer
  • The measure of angle A is 68°. The measure of angle B is 22°. Which statement best describes the relationship between these two
    6·1 answer
  • Can someone explain the process of getting to Angle A? I know the answer is 44.1 but I need to show my work so can someone show
    6·1 answer
  • Different sizes of string needs to be cut to go around various shapes. All of the following sizes are in inches.
    5·1 answer
  • Please help urgent!!!
    9·1 answer
  • A force of 3 pounds is required to hold a spring stretched 0.6 feet beyond its natural length. how much work (in foot-pounds) is
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!