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3 years ago

-8x - 5x simplify and show steps

2 answers:

Nutka1998 [239]3 years ago

5 0

Simplify both sides −8x − 5x = −13x which would equal −13x = −13x

Than add 13x to both sides: −13x + 13x = −13x + 13x

So, the answer is 0=0,
which could be said as all real numbers are solutions.

Bingel [31]3 years ago

3 0

-8x-5x = -13x
1.) -8x + -5x
2.) -13x

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In the U.S., 95% of children have received their DTaP vaccine. Calculate the probability that fewer than 700 out of a sample of

Studentka2010 [4]

Answer:

0.0183

Step-by-step explanation:

The percentage of students, who received their DTaP vaccine is 95%.

This implies that:

$p = 0.95$

and

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$= \sqrt{ \frac{pq}{n} }$

$= \sqrt{ \frac{0.95 \times 0.05}{750} } \\ = 0.00796$

We want to find the probability, that the sample proportion,

$\hat p \leqslant \frac{700}{750} \\ \hat p \leqslant 0.9 \bar3$

$P(\hat p\le0.9\bar3)=P(Z\le \frac{0.9 \bar3 - 0.95 }{0.00796} ) \\ = P(Z\le - 2.09) \\ = 0.0183$

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3 years ago

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pychu [463]

9514 1404 393

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Step-by-step explanation:

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3 0

3 years ago

(-23, – 8) and (722 -8)

Andre45 [30]

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Step-by-step explanation:

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3 years ago

Divide the 4th degree polynomial

iragen [17]

Answer:

quotient: 10x +16
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Step-by-step explanation:

The attachment shows the steps.

quotient: 10x +16

remainder: 28x^2 +10x +22

_____

Polynomial long division is easier than numerical long division because you only need to examine the first terms to determine the quotient term.

The first quotient term is 10x^4/x^3 = 10x.

The second quotient term is 16x^3/x^3 = 16.

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4 0

3 years ago

1.Each side of a square has a length of 5x. Use your area expression to find the area of the square when x = 2.2 centimeters. Sh

NARA [144]

1. The area is l * w, so just multiply 5x by 5x. Replacing x with 2.2 gets:
(5 * 2.2) * (5 * 2.2)

11 * 11
= 121

So, the area of the square when x = 2.2 centimeters is 121 sq cm.

2. The expression for this equation would be:
6(y + 4)

And using the distributive property on this to get the simplified expression, just multiply both y and 4 by 6.

6 * y + 6 * 4
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So, your expression is 6y + 24.

3. For this one, let's make y's value 3.5 instead of 3 1/2 to make it easier to solve.

We just use the above expression to solve.
6 * 3.5 + 6 * 4
21 + 24
= 45

So, the area of the rectangle when y = 3 1/2 is 45 sq in.

4. For this last one, let's use the formula w = A/l to form an expression that will represent the width.

w = 8w + 18/2

Now, let's simplify it by dividing 8w and 18 by 2.
w = 8w/2 + 18/2

w = 4w + 9

So the expression to represent the width of the rectangle is 4w + 9.
Hope this helped!

4 0

3 years ago