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wel
2 years ago
9

The question is in the pic!

Mathematics
1 answer:
stich3 [128]2 years ago
5 0

A. Isn't the answer because 9 can't go into 60

B. This is your answer 45 inches

C. and D. can't be the answer because 15 can't go into 50 or 36

15 * 3 = 45

9 * 5 = 45

I hope this helps you out, I had taken me a while to figure out what it was asking. ^-^

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Given: △ABC,
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we are given

△ABC

we can use area of triangle formula

A=\frac{1}{2} AB*BC*sin(B)

we have

AB=6

BC=10

m∠B=120°

so, we can plug it

A=\frac{1}{2} 6*10*sin(120)

A=\frac{1}{2} *60*\frac{\sqrt{3} }{2}

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7 0
3 years ago
One hundred rats with mothers that were exposed to high levels of tobacco smoke during pregnancy were put through a simple maze.
Paul [167]

Answer:

The 90% confidence interval for pis (0.7342, 0.8658).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

For this problem, we have that:

100 rats mothers, 80 went right. So n = 100, \pi = \frac{80}{100} = 0.8

90% confidence level

So \alpha = 0.1, z is the value of Z that has a pvalue of 1 - \frac{0.1}{2} = 0.95, so Z = 1.645.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.8 - 1.645\sqrt{\frac{0.8*0.2}{100}} = 0.7342

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.8 + 1.645\sqrt{\frac{0.8*0.2}{100}} = 0.8658

The 90% confidence interval for pis (0.7342, 0.8658).

3 0
2 years ago
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Answer:

<em>*****Slope: M = -3*****</em>



6 0
2 years ago
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crimeas [40]
Order the numbers from least to greatest.
3.4, 31/5, 35.8%, 3.64, 322%

8 0
2 years ago
Which can be used to expand the expression below?
KiRa [710]

Answer:

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Step-by-step explanation:

We have

5(3x - 6/7)

Distributive Property would work because 5 has to be mutliplied by 3x and -6/7 to rid the parenthesis and also give a final answer for the equation. Any others will lead to a wrong answer.

7 0
3 years ago
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