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3 years ago

A number is equal to twice a smaller number plus 3. The same number is equal to twice the sum of the smaller

Mathematics

1 answer:

Serhud [2]3 years ago

8 0

Answer:

I don't know what you think about it is not going to be a great day of school

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Can somebody help me. Will Mark brainliest.

Alex17521 [72]

I think the answer is 43.2 degrees

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3 years ago

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

Bill says that he can add 23 and 40 without regrouping is bill correct how do you know

Alexxx [7]

Yes bill is correct because

6 0

3 years ago

Read 2 more answers

Arrange these numbers from least to greatest:

zmey [24]

First let's put them all over 100.
- $\frac{5}{8}$ would change to - $\frac{62.5}{100}$

- $\frac{7}{9}$ to - $\frac{77.7}{100}$

- $\frac{4}{5}$ to - $\frac{80}{100}$

- $\frac{3}{7}$ to - $\frac{42.8}{100}$

Then if we put them from least to greatest it would be from highest to lowest (since they are negatives)

- $\frac{4}{5}$ , - $\frac{7}{9}$ , - $\frac{5}{8}$ , - $\frac{3}{7}$

The answer would be B

8 0

4 years ago

If 80 is 80% of a value what is the value

sergeinik [125]

The value is 100 because it is 80% of 100, just like 8 is 80% of 10

5 0

3 years ago

Read 2 more answers