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Mademuasel [1]
3 years ago
7

3(2x + 7) - 2 (x + 5)

Mathematics
2 answers:
aleksley [76]3 years ago
6 0
6x+21-2(x+5)
6x+21-2x-10
4x+21-10
Answer:4x+11
olga55 [171]3 years ago
5 0

Answer:

Step-by-step explanation:

3(2x + 7) - 2 (x + 5)

need to distibute

5x+10-2x+3

combine like terms

3x+13

divide

x=4.3

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Kylie explained that will result in a difference of squares because . Which statement best describes Kylie’s explanation?
satela [25.4K]

Answer: that not a real question it cant be answered has to be missing something

Step-by-step explanation:)

8 0
2 years ago
According to the February 2008 Federal Trade Commission report on consumer fraud and identity theft, 23% of all complaints in 20
Murljashka [212]

Answer:

There is not enough evidence to support the claim that Alaska had a lower proportion of identity theft than 23%.  

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 1432

p = 23% = 0.23

Alpha, α = 0.05

Number of theft complaints , x = 321

First, we design the null and the alternate hypothesis  

H_{0}: p = 0.23\\H_A: p < 0.23

This is a one-tailed test.  

Formula:

\hat{p} = \dfrac{x}{n} = \dfrac{321}{1432} =0.2241

z = \dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}

Putting the values, we get,

z = \displaystyle\frac{0.2241-0.23}{\sqrt{\frac{0.23(1-0.23)}{1432}}} = -0.5305

Now, we calculate the p-value from the table.

P-value = 0.298

Since the p-value is greater than the significance level, we fail to reject the null hypothesis and accept the null hypothesis.

Conclusion:

Thus, there is not enough evidence to support the claim that Alaska had a lower proportion of identity theft than 23%.

5 0
2 years ago
How do you solve -7-x=24
Airida [17]

Answer:

-31

Step-by-step explanation:

you have to get the variable on one side alone. so you would add the -7 to the 24 then divide by -1 because you have a -x when adding the -7 to the 24

3 0
3 years ago
What is $112 in 8 hours
never [62]

Answer:

A unit rate must have a denominator of one:

n/1  

So you would get n by dividing 112 by 8: 112 divided by 8 = 14 so n = 14.

14/1 or $14 p/ hr

8 0
3 years ago
Assume each figure shown has the same orientation. Which figure is the image of square LMNP after a translation of
umka21 [38]

Figure 4 is the image of the square LMNP after the translation.

<u>Step-by-step explanation:</u>

Let us see the coordinates of the pre image LMNP as,

L (-3,1)

M(-1,1)

N(-1,-1)

P(-3,-1)

after translation of (x,y) → (x+5, y -3) the coordinates of the image obtained as,

L'(2,-2)

M'(4,-2)

N'(4,-4)

P'(2,-4) which matches the image 4.

8 0
3 years ago
Read 2 more answers
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