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3 years ago

−5(2x+1)−2x−2= \,\,17 17

Mathematics

1 answer:

earnstyle [38]3 years ago

4 0

Answer:

here you go;

Step-by-step expl

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Which expression is equivalent to (8^2)-4 ??

Tamiku [17]

Answer:

Option C $\frac{1}{8*8*8*8*8*8*8*8}$

Step-by-step explanation:

we have

$(8^{2})^{-4}$

Remember that

$(a)^{-b} = \frac{1}{a^{b}}$

$(a^{b})^{c}=(a)^{b*c}$

therefore

$(8^{2})^{-4}=(8)^{-4*2}=(8)^{-8}$

$(8)^{-8} = \frac{1}{8^{8}}$

$\frac{1}{8^{8}}=\frac{1}{8*8*8*8*8*8*8*8}$

3 0

3 years ago

Read 2 more answers

Shawna is saving money to buy a new laptop. She starts her savings with $64. Each week, she adds another $17 to her savings. Gra

Ray Of Light [21]

Answer:

4 weeks

Step-by-step explanation:

5 0

3 years ago

Suppose we want a 90% confidence interval for the average amount spent on entertainment (movies, concerts, dates, etc.) by fresh

katovenus [111]

Answer:

609

Step-by-step explanation:

Standard deviation = $\sigma$ = $30

Margin of error = E = $2

Confidence level = 90%

Since the distribution is said to be normal, we will use z scores to solve this problem.

The z score for 90% confidence level = z = 1.645

Sample size= n = ?

The formula to calculate the margin of error is:

$E=z\frac{\sigma}{\sqrt{n}}\\\\\sqrt{n}=z\frac{\sigma}{E}\\\\n=(\frac{z\sigma}{E} )^{2}$

Using the values in above equation, we get:

$n=(\frac{1.645 \times 30}{2} )^{2}\\\\ n = 608.9$

This means, the minimum number of observations required is 609

6 0

3 years ago

How do you do this page

andrew11 [14]

13. Is 12 and 22. Is 11

8 0

3 years ago

The point (0, 0) is a solution to which of these inequalities? A. y – 4 < 3x – 1 B. y – 1 < 3x – 4 C. y + 4 < 3x – 1 D.

miskamm [114]

Answer:

Step-by-step explanation:

Replace the point (0,0) in each inequality

A. y - 4 < 3x - 1

B. y - 1 < 3x - 4

C. y + 4 < 3x - 1

D. y + 4 < 3x + 1

A. 0 - 4 < 3(0) - 1

- 4 < - 1

True

B. 0 - 1 < 3(0) - 4

- 1 < - 4

False

C. y + 4 < 3x - 1

0 + 4 < 3(0) - 1

4 < - 1

False

D. y + 4 < 3x + 1

0 + 4 < 3(0) + 1

4 < 1

False

5 0

3 years ago