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Galina-37 [17]
2 years ago
7

What is the simplified expression for 2(x-5)? A. 2x B. - 108 C. 2x-10 D. 2x+5

Mathematics
2 answers:
qwelly [4]2 years ago
4 0

Answer:

c is the answer we get it by multiplying terms

Lemur [1.5K]2 years ago
3 0

Answer:

2x - 10

Step-by-step explanation:

2(x - 5) ← multiply each term in the parenthesis by 2

= 2x - 10

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Which of the following expressions are equivalent to -5/-7×-11/-6 ​
USPshnik [31]

Answer:

B.

Step-by-step explanation:

-5/-7×-11/-6

= (-5 * -11)  / (-7*-6)

= 55 / 42.

A. =  - (6/-11) = 6/11

-5/7 * 6/11 =  -30/77.

B.   - (-11/7) = 11/7

5/6 * 11/7

= 55/42.

7 0
3 years ago
Select the correct answer,
ivanzaharov [21]

Answer:

D. 81

Step-by-step explanation:

Raise  

3

to the power of  

4

.

81

=

x

Rewrite the equation as  

x

=

81

.

x

=

81

7 0
2 years ago
Make sure you click the image for full picture
Ivanshal [37]

question 19

equal to: 3's

less than: 2's, 1's

greater than: 0's

question 20

40 gallons, 12 concentrate, 28 water

this is a fraction of 12/28

simplification: (12) divided by 12 / (28) divided by 12

1/2

1 part concentrate 2 parts water per each of the 40 total gallons.

so color in 33% for concentrate and 66% water

I am totally not wrong  :D:D:D:D

8 0
2 years ago
Read 2 more answers
In preparation for an earnings report, a large retailer wants to estimate p= the proportion of annual sales
mr Goodwill [35]

Using the z-distribution, it is found that the 95% confidence interval for the proportion of sales that occured in December is (0.1648, 0.2948).

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which:

  • \pi is the sample proportion.
  • z is the critical value.
  • n is the sample size.

In this problem, we have a 95% confidence level, hence\alpha = 0.95, z is the value of Z that has a p-value of \frac{1+0.95}{2} = 0.975, so the critical value is z = 1.96.

The sample size and the estimate are given by:

n = 161, \pi = \frac{37}{161} = 0.2298

Hence:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2298 - 1.96\sqrt{\frac{0.2298(0.7702)}{161}} = 0.1648

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2298 + 1.96\sqrt{\frac{0.2298(0.7702)}{161}} = 0.2948

The 95% confidence interval for the proportion of sales that occured in December is (0.1648, 0.2948).

More can be learned about the z-distribution at brainly.com/question/25890103

5 0
2 years ago
I need a bit of help on this problem
Nimfa-mama [501]

Answer: its b

Step-by-step explanation:

bc i used a calculator and it said so

4 0
2 years ago
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