Convert. If necessary, round to the nearest tenth. (Recall: 1 in. = 2.54 cm) 16 cm . a. 4.5 c. 8.5 b. 6.3 d. 6.9

34% as a fraction in its similiest form

sesenic [268]

Answer:

17/50

Step-by-step explanation:

34%

34/100

17/50

its correct

3 0

3 years ago

Read 2 more answers

Two different simple random samples are drawn from two different populations. The first sample consists of 20 people with 9 havi

QveST [7]

Answer: $(-0.48,\ -0.04)$

Step-by-step explanation:

The confidence interval for the difference of two population proportion is given by :-

$(p_1-p_2)\pm z_{\alpha/2}\sqrt{\dfrac{p_1(1-p_1)}{n_1}+\dfrac{p_2(1-p_2)}{n_2}}$

Given : The first sample consists of 20 people with 9 having a common attribute.

Here, $n_1=20$ , $p_1=\dfrac{9}{20}=0.45$

$n_2=2100$ , $p_1=\dfrac{1492 }{2100}\approx0.71$

Significance level : $\alpha=1-0.95=0.05$

Critical value : $z_{\alpha/2}=1.96$

A 95% confidence interval for the difference of two population proportion will be :-

$(0.45-0.71)\pm z_{\alpha/2}\sqrt{\dfrac{0.45(1-0.45)}{20}+\dfrac{0.71(1-0.71)}{2100}}\\\\\approx -0.26\pm0.22\\\\=(-0.26-0.22,-0.26+0.22)\\\\=(-0.48,\ -0.04)$

3 0

4 years ago

Help ngnfkxkdkmdfmkdkfkfmmfkfkdjx

nadya68 [22]

9514 1404 393

Answer:

A: 8x +24

B: not equivalent for any value of x

Step-by-step explanation:

Part A:

The factor of 4 on the outside of parentheses multiplies each term inside:

M = 4(2x) +4(6)

M = 8x +24 . . . . . expression equivalent to M

__

Part B:

Expressions M and N are not equivalent for any value of x. They are equivalent if their difference is zero or can be made to be zero. Subtracting N from M, we find the difference to be ...

M -N = (8x +24) -(8x +10) = 14

There is no value of x that will make the difference of 14 become zero.

5 0

3 years ago

Evaluate the replacement set for the following equation 2n - 3 < 9. replacement set : n = {2, 5, 0}

ad-work [718]

n = {2, 5, 0} holds true for 2n - 3 < 9

Solution:

Replacement set is the set of values that may be substituted for the variable.

Plug in each value from the replacement set and evaluate both sides of the inequality

If the inequality is true for a certain value, that value belongs in the solution set.

Given equation is:

2n - 3 < 9

Substitute n = 2

2(2) - 3 < 9

4 - 3 < 9

1 < 9

1 is less than 9 is true

Thus n = 2 is a solution to equation

Substitute n = 5

2(5) - 3 < 9

10 - 3 < 9

7 < 9

7 is less than 9 is true

Thus n = 5 is a solution to equation

Substitute n = 0

2(0) - 3 < 9

0 - 3 < 9

-3 < 9

-3 is less than 9 is true

Thus n = -3 is a solution to equation

7 0

4 years ago

Explain how to regroup 43 ones as tens and ones

zepelin [54]

The number 43 has 4 tens and 3 ones.

Now we have 43 ones given, in order to regroup them, we need to group 4 rows of 10 each and 3 rows of 1 each.

By this, we will be having:
4 rows of 10 each = 4*10 = 40
3 rows of 1 each = 3*1 = 3
which is the needed 43.

6 0

4 years ago