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3 years ago

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Mathematics

1 answer:

SIZIF [17.4K]3 years ago

8 0

Answer:

1) 2b + 6

2) 8w - 12

3) 2b + 6 + 6x + 20

4) 9w^2 + 27 + 8 - 27

5) Sorry.

Step-by-step explanation:

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Which equations support the fact that rational numbers are closed under addition?

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Answer:

3/16+3/16=6/16

Step-by-step explanation:

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The integers of -5 and 5 are called

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The integers are called the opposites because they are on the opposite side of zero.

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g In 2013, the Pew Research Foundation reported that 43% of U.S. adults report that they live with one or more chronic condition

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Answer:

We are 95% confident that the true proportion of U.S. adults who live with one or more chronic conditions is between 39.7% and 46.33%

Step-by-step explanation:

From the question we are told that

The sample proportion is $\r p = 43\% = 0.43$

The standard error is $SE = 0.017$

Given that the confidence level is 95% then the level of significance is mathematically represented as

$\alpha = (100-95)\%$

=> $\alpha = 0.05$

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * SE$

=> $E = 1.96 * 0.017$

=> $E = 0.03332$

Generally 95% confidence interval is mathematically represented as

$\r p -E < p < \r p +E$

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3 years ago

Solve for x: 3|x-3| 2=14<br> a. No solution<br> b. x=-1,x=8.3<br> c. x=0,x=7<br> d. x=-1,x=7

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I am looking on the answers, and there is only one case, when a or b or c or d pass: 3|x-3| + 2 = 14. So I assume, that before two is plus. Then:

3|x-3|+2=14 |minus 2
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|x-3|=4

From absolute value definition you've got two ways:

x-3=4 or x-3=-4
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3 years ago

What divisor is represented by the synthetic division below? A vertical line and horizontal line combine to make a L shape. Ther

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One of the ways of dividing polynomials is by synthetic division

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<h3>How to determine the divisor of the division</h3>

From the question, we understand that:

Entry -5 is on the outside to the left of the shape

The entry represents the zero of the divisor.

Next, we set this entry to the variable (assume the variable is x)

So, we have: