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3 years ago

Please help and leave a small explanation if u want brainliest :)

Mathematics

2 answers:

bonufazy [111]3 years ago

5 0

Answer:

B) Triangle ABC is similar to triangle EFG

Step-by-step explanation:

they are similar eve tho they are not the same size. But they arnt congrent cause they are diffrent sizes.

mr Goodwill [35]3 years ago

3 0

Answer:

B is true

Step-by-step explanation:

ratio of all corresponding sides are equal

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A contractor is building a circular swimming pool. The radius of the circle 12 feet. He needs to know the circumference in order

dolphi86 [110]

C=Pi X D
Diameter is twice the radius so that would be 24 feet

C = Pi X 24
C = (22/7) X 24
C = 75.428 Feet.

6 0

3 years ago

Read 2 more answers

Help Plz AZAP! ONLY TWO QUESTIONS HELP!!!! THEY ARE DIFFERENT!

NeX [460]

Answer:

ask your math teacher

Step-by-step explanation:

get some help from a tutor.

6 0

3 years ago

A random sample of 200 shoppers at a local grocery store found that 135 of the 200 sampled

VMariaS [17]

Using the z-distribution, as we are working with a proportion, it is found that samples of 937 should be taken.

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

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

In which:

$\pi$ is the sample proportion.

z is the critical value.

n is the sample size.

The margin of error is given by:

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

In this problem, we have that:

The estimate is of $\pi = 0.675$ .

The margin of error is of M = 0.03.

95% confidence level, hence $\alpha = 0.95$ , z is the value of Z that has a p-value of $\frac{1+0.95}{2} = 0.975$ , so $z = 1.96$ .

Then, we solve for n to find the minimum sample size.

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

$0.03 = 1.96\sqrt{\frac{0.675(0.325)}{n}}$

$0.03\sqrt{n} = 1.96\sqrt{0.675(0.325)}$

$\sqrt{n} = \frac{1.96\sqrt{0.675(0.325)}}{0.03}$

$(\sqrt{n})^2 = \left(\frac{1.96\sqrt{0.675(0.325)}}{0.03}\right)^2$

$n = 936.4$

Rounding up, it is found that samples of 937 should be taken.

More can be learned about the z-distribution at brainly.com/question/25890103

4 0

2 years ago

X + 3y = −4 x + 5y = −6

lesya [120]

For this case we must solve the following system of equations:

$x + 3y = -4\\x + 5y = -6$

We clear x of both equations:

$x = -4-3y\\x = -6-5y$

We match:

$-4-3y = -6-5y\\-3y + 5y = -6 + 4\\2y = -2\\y = \frac {-2} {2}\\y = -1$

We find the value of "x":

$x = -4-3 (-1)\\x = -4 + 3\\x = -1$

Thus, the solution of the system is:

$(x, y): (- 1, -1)$

Answer:

$(x, y): (- 1, -1)$

5 0

3 years ago

I need to know the answer

amid [387]

The answer is B hope it helped

7 0

3 years ago