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3 years ago

Really need help on this.

Mathematics

1 answer:

Darina [25.2K]3 years ago

6 0

Your answer would be 16.2 foot

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Match the system of linear equations, to its graph.

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Answer:

The answer is the second graph, Option 2

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2 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

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1 year ago

What is the difference between 3/7, and 1/14

Fofino [41]

5/14 is the difference between 3/7 and 1/14.

4 0

3 years ago

(15-10)-(14+12+ (8+5)

Travka [436]

Answer:

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Step-by-step explanation:

Remove all brackets by multiplying the existing math signs then take it from there

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1 year ago

Read 2 more answers

Find the value of x in the triangle shown below: 2.5 6.5 Choose 1 answer: I =6 3 = V48.5 x = 9 x = V9

Andreyy89

Answer:

<u>x = 6 units</u>

Step-by-step explanation:

We know that, By pythagoras theorem,

Hypotenuse2 = base2 + perpendicular2

Given, Hypotenuse = 6.5

perpendicular = 2.5

base = x

So, by putting the values,

6.52 = 2.52 + x2

42.25 = 6.25 + x2

36 = x2

Hence, <u>x = 6 units</u>

4 0

1 year ago