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3 years ago

HELP ME PLEASEE!!!!!!!

Mathematics

1 answer:

xeze [42]3 years ago

4 0

Answer:

1/4 of the pizza

Step-by-step explanation:

Imagine that the pizza was spilt into fourths. If you dropped 1/2, you dropped 2 pieces out of the 4. If you shared 2/4, which is also 1/2, you shared 1 out 2 pieces left. You now have 1 out of the 4 pieces left.

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For every 5 yard you run jill run 6 yard if you have run 30 yard then how far jill run.

liubo4ka [24]

Jill has ran 36 yards.
We run 5, 10, 15, 20, 25, 30
Jill runs 6, 12, 18, 24, 30, 36

4 0

3 years ago

Read 2 more answers

Factor the following expression:<br> x2-4x-21

natka813 [3]

Answer:

(x − 7)(x + 3)

Step-by-step explanation:

Step 1: You need to find out what to numbers add up to −4 and multiply −21?

−7 and 3

Step 2: Just rewrite the expression using the above and you're done!

(x − 7)(x + 3)

3 0

3 years ago

Evaluate <br> F(x)=5x-3<br> F(5)=

zlopas [31]

Answer:

sorry if im wrong but 22

6 0

3 years ago

Solve the formula for n. A=a+d(n-1) evaluate n when A=25, a=5, and d=13

ser-zykov [4K]

Answer:

Step-by-step explanation:

You;ll run into this formula a lot. Make sure you study it carefully.

A = 25

a = 5

d = 13

Find n

25 = 5 + 13*(n- 1)

20 = 13(n - 1)

This isn't going to work out. 20/13 does not give a whole number which it should.

8 0

3 years ago

Use the given level of confidence and sample data to construct a confidence interval for the population proportion p.

Molodets [167]

Answer:

The 95% confidence interval for the population proportion is (0.778, 0.884).

Step-by-step explanation:

We have to calculate a 95% confidence interval for the proportion.

The sample proportion is p=0.831.

The standard error of the proportion is:

$\sigma_p=\sqrt{\dfrac{p(1-p)}{n}}=\sqrt{\dfrac{0.831*0.169}{195}}\\\\\\ \sigma_p=\sqrt{0.00072}=0.027$

The critical z-value for a 95% confidence interval is z=1.96.

The margin of error (MOE) can be calculated as:

$MOE=z\cdot \sigma_p=1.96 \cdot 0.027=0.053$

Then, the lower and upper bounds of the confidence interval are:

$LL=p-z \cdot \sisgma_p = 0.831-0.053=0.778\\\\UL=p+z \cdot \sisgma_p = 0.831+0.053=0.884$

The 95% confidence interval for the population proportion is (0.778, 0.884).

8 0

4 years ago