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3 years ago

Find x. A. 7√6/2 B. 28 C. 21/2 D. 7√6

Mathematics

1 answer:

Veronika [31]3 years ago

8 0

9514 1404 393

Answer:

A. 7√6/2

Step-by-step explanation:

The side ratios of the 30-60-90 triangle are 1 : √3 : 2. This means the horizontal line segment is 7√3.

The side ratios of the 45-45-90 triangle are 1 : 1 : √2. This means ...

x = (horizontal segment)/√2 = (√2)/2 × 7√3 = (7/2)√(2·3)

x = 7√6/2

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Answer:

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Step-by-step explanation:

The computation of the maximum number of games that he could buy is shown below:

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= $47

If each game cost $15

So, the maximum no of games is

= $47 ÷ $15

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3 years ago

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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4 years ago

For a repeated-measures study comparing two treatments with a sample of n = 9 participants, the difference scores have a mean of

Korolek [52]

Answer: Estimated standard error for the sample mean difference would be 1.

Step-by-step explanation:

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So, Sum of difference would be

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S = 288

n = 9

We need to find the standard error for the sample mean differences.

Estimated standard error for the sampled mean difference would be

$\dfrac{\sqrt{Sum(D^2)-(\dfrac{sum(d)^2}{n})}}{n(n-1)}}\\\\=\dfrac{\sqrt{288-\dfrac{44.1^2}{9}}}{9(9-1)}\\\\=0.99\\\\\approx 1$

Hence, estimated standard error for the sample mean difference would be 1.

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3 years ago