<span>8(3x+5) + 14</span>
24x + 40 + 14
24x + 54

Answer: In simplest form it is 24x + 54

First you have to distribute the 8 in the parenthesis and then simplify the answer further.

8 0

3 years ago

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An article in the Archives of Internal Medicine reported that in a sample of 244 men, 73 had elevated total cholesterol levels (

mylen [45]

Answer: We concluded that the proportion of people with elevated cholesterol levels differs between men and women.

Step-by-step explanation:

Since we have given that

Hypothesis:

$H_0:p_1=p_2\\\\H_a:p_1\neq p_2$

in a sample of 244 men, 73 had elevated total cholesterol level.

n₁ = 244

x₁ = 73

So, $p_1=\dfrac{x_1}{n_1}=\dfrac{73}{244}=0.299$

n₂ = 232

x₂ =44

So, $p_2=\dfrac{44}{232}=0.189$

At 0.05 level of significance, z = 1.96 as it is two tail test.

So, test statistic value would be

$z=\dfrac{p_1-p_2}{\sqrt{\dfrac{p_1(1-p_1)}{n_1}+\dfrac{p_2(1-p_2)}{n_2}}}\\\\z=\dfrac{0.299-0.189}{\sqrt{\dfrac{0.299\times 0.701}{100}+\dfrac{0.189\times 0.811}{100}}}\\\\z=1.83$

Since, 1.96>1.83

Hence, we will reject the null hypothesis.

Therefore, We concluded that the proportion of people with elevated cholesterol levels differs between men and women.

5 0

3 years ago

Fill in the number that makes this sentence true 6x9=(6x5)+(6x)

antiseptic1488 [7]

<span>Fill in the number that makes this sentence true 6x9=(6x5)+(6x) (6x5)</span>

4 0

3 years ago