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4 years ago

Which value of w is the solution to the equation?

Mathematics

1 answer:

just olya [345]4 years ago

6 0

Answer:

$15 = w$

Step-by-step explanation:

2w - 5 = w + 10

-2w - 2w

___________

−5 = −w + 10

-10 - 10

__________

−15 = −w

$15 = w$

I am joyous to assist you anytime.

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10# A consumer advocacy group is doing a large study on car rental practices. Among other things, the consumer group would like

ella [17]

ANSWER:

104

STEP-BY-STEP EXPLANATION:

Given:

Standard deviation (σ) = 700

Confidence level = 95%

Mean error (Eμ) = 135

We have for a confidence level of 95%:

$\begin{gathered} \alpha=100\%-95\%=5\%=0.05 \\ \\ \alpha\text{/2}=\frac{0.05}{2}=0.025 \\ \\ \text{ The corresponding Z value for \alpha/2 = 0.025 is as follows:} \\ \\ Z_{\alpha\text{/2}}=1.96 \end{gathered}$

Now, we calculate the minimum value of the sample size as follows:

$\begin{gathered} n=\left(\frac{Z_{\alpha\text{/2}}\cdot\sigma}{E}\right)^2 \\ \\ \text{ We replacing:} \\ \\ \:n=\left(\frac{1.96\cdot 700}{135}\right)^2 \\ \\ \:n=103.2858\cong104 \end{gathered}$

The minimum sample size needed is 104

3 0

1 year ago

How are volatility and risk related in an investment

AleksAgata [21]

Answer:

Volatility - the measure of how far the price of an investment moves - is sometimes low, sometimes high, but always a natural part of investing. Risk is the likelihood of an investment losing value, adjusted for inflation, over a longer period of time.

3 0

3 years ago

8-2b = -2 find the solution to the equation

Paul [167]

Answer: 5

Step-by-step explanation:

8-2b=-2

8-2b-8=-2-8

-2b=-10

-2b/-2=-10/-2

b=5

3 0

4 years ago

Carla saved $25 per month for 3 years. She spent 85% of her savings on a television. How much money does Carla have left?

rosijanka [135]

Answer:

$135

Step-by-step explanation:

5 0

3 years ago

Type your answer into the boxes.

vladimir2022 [97]

she arrived at 2:15

Step-by-step explanation:

i think ut correct

7 0

3 years ago