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3 years ago

Is the answer number 1? I can't get anymore wrong sorry for lengthy problem thanks!

Mathematics

1 answer:

mezya [45]3 years ago

8 0

The area of the circle shown would not be 5pi. If you look closer, the area is 25pi, therefore the answer is 3. I hope this helps!

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Find the slope of the line shown on the graphs to the right

Aloiza [94]

the slope is y = 7/8x - 0.5 im pretty sure

5 0

3 years ago

A states division of motor vehicles claims that 60% of teens pass their drivers test on the first attempt. an investigative repo

____ [38]

Answer: There is convincing evidence at the the significance level that the DMV's claim is incorrect.

Step-by-step explanation:

Since we have given that

Hypothesis:

$H_0:p=0.6\\\\H_a:p\neq 0.6$

Probability of teens pass their drivers test on the first attempt = 60% = 0.60

Number of teens = 125

Number of them passed the tests on their first try = 86

$\hat{p}=\dfrac{86}{125}=0.688$

So, the value of test statistic would be

$z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}\\\\z=\dfrac{0.688-0.60}{\sqrt{\dfrac{0.6\times 0.4}{125}}}\\\\z=\dfrac{0.088}{0.0438}\\\\z=2.009\\\\z\approx 2.01$

At α = 0.05% level of significance, critical value = 1.645

Since 1.645 < 2.01

So, we will reject the null hypothesis.

Hence, there is convincing evidence at the the significance level that the DMV's claim is incorrect.

7 0

3 years ago

Order these numbers from least to greatest 7.3542,7.35,7,305,8.4

Alex777 [14]

7.305
7.35
7.3542
8.4

This the correct order from least to greatest

8 0

3 years ago

Answer this please my teacher isnt available

Paraphin [41]

Answer:The length of one side would be 11

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

I buy a 5 kg jar of sweets for £25. Then i divide the sweets into 125g packets and sell them for 99p each

kotegsom [21]

Answer:

is that the whole question? it looks unfinished to me-

3 0

3 years ago