Vertical angles must: Check all that apply

Mathematics

2 answers:

Paha777 [63]3 years ago

5 0

I would say C. and A. Hope this helps.

ollegr [7]3 years ago

3 0

A. be congruent
cause if you change one line you have to change the other

You might be interested in

You work for a marketing firm that has a large client in the automobile industry. You have been asked to estimate the proportion

quester [9]

Answer:

The sample size must be approximately 1067 to get a margin of error of 0.03.

Step-by-step explanation:

We are given the following in the question:

Margin of error = 0.03

Significance level = 5%

Margin of error =

$z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

Since, no prior proportions are given, we take

$\hat{p} = 0.5$

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

Putting values, we get,

$0.03 = 1.96\sqrt{\dfrac{0.5(1-0.5)}{n}}\\\\\sqrt{n} = \dfrac{1.96\times 0.5}{0.03}\\\\\\sqrt{n} = 32.67\\n = 1067.3289\approx 1067$

Thus, the sample size must be approximately 1067 to get a margin of error of 0.03.

3 0

3 years ago

How would you write 87 as a Roman numeral?

ddd [48]

Answer:

LXXXVII

Step-by-step explanation:

L=50 X=10 V=5 I=1

So basically you need to figure out what adds up to the 87. so use L, or 50. now XXX=30. so now you have 80 so we still have 7 left over, so we can write 7 I's or a 5, (V) and two I's. We should use the V and the I. So we take one V, or 5. and two I's which together is 7. which leads us too LXXXVII. also always remember to have the biggest number first, in this case the L (50).

7 0

2 years ago

(1+13)2−29=? <br> ive never been good with fractions and dont understand this

GaryK [48]

Answer:

-1

Step-by-step explanation:

1+13=14

(14)2=28

28-29=-1

8 0

2 years ago