All categories

3 years ago

Help help ASAP! Can someone help me with the answer!

Mathematics

1 answer:

Monica [59]3 years ago

5 0

Answer:

-2x - 8

Step-by-step explanation:

Combine like terms

-5x - 7x = -2

Therfore you have

-2x - 8

You might be interested in

E U F {2,4,6,8,} true or false

lesya [120]

Tbh i think its true not 100%

4 0

3 years ago

17 < 2x + 7 <29*<br> Your Inswer

borishaifa [10]

Answer:

5<x<11

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Customers arrive at a movie theater at the advertised movie time only to find that they have to sit through several previews and

sergij07 [2.7K]

Answer:

a) sample size is 40

Step-by-step explanation:

(a)

$\sigma=4$ minutes

Margin of error, E is 75 seconds E=75/60= 1.25 minutes.

The level of significance $\alpha= 0.05$ for 95% level of significance

For 95% confidence interval $z_{\frac{\alpha}{2}}=1.96$ from standard deviation table

Sample size required, n

$n=\left (\frac{z_{\frac{\alpha}{2}}\cdot \sigma}{E} \right )^{2}=\left (\frac{1.96\cdot4}{75/60} \right )^{2}=39.337984$

Rounding off, n=40

Sample size =40

Keywords:

95% confidence, sample size, Wall Street Journal

3 0

3 years ago

A is a figure with ten sides and ten interior angles.

wel

Answer:

not enough information to form an answer

Step-by-step explanation:

and what is ur profile pic lol

7 1

3 years ago

Read 2 more answers

5kg to 5212g increase or decrease

Bingel [31]

Answer:

increase

Step-by-step explanation:

5kg to 5212g

First, Let's put these numbers into similar units

1kg=1000g, so

5kg=5000g

And 5000g<5212g

Therefore, it is an increase

6 0

3 years ago