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3 years ago

Identify which table shows a direct variation.

Mathematics

1 answer:

DochEvi [55]3 years ago

8 0

Only Table 2 shows direct variation. Every y value is 7 times the associated x value.

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Which polygon has the most sides?

Brut [27]

Answer:

It has 20 regular triangular faces, 30 square faces, 12 regular pentagonal faces, 60 vertices, and 120 edges.

Step-by-step explanation:

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3 years ago

(25 points!!!!!) solve for <2

stiv31 [10]

Step-by-step explanation:

135 = <2 + 86 [exterior angle of triangle is equal to the sum of its oppsite two interior angles]

or, <2 = 135 - 86

so, <2 = 49°

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2 years ago

Jade can travel 42 miles in 4 hours. Please calculate Jade's rate of speed. (round to 2 decimal places)

mel-nik [20]

C. 10.5 miles per hour

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3 years ago

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30 POINTS - will mark brainliest!!<br><br> 4. write the following in exponential form (d only)

Paul [167]

Answer:

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3 years ago

According to the U.S. Department of Education. Institute of Education Sciences, National Center for Education Statistics 1,026,0

Andreyy89

Answer:

The correct option is C) 21.1 and 0.68

Step-by-step explanation:

Consider the provided information.

The mean composite score was 21.1 with a standard deviation of 4.8. The ACT composite score ranges from 1 to 36, with higher scores indicating greater achievement in high school.

Therefore μ = 21.1 and σ = 4.8

It is given that the sample of 50 students;

Thus, sample size ( n ) = 50

According to the central limit theorem,

$\mu_{\bar x}=\mu\ and \ \sigma_{\bar x}=\frac{\sigma}{\sqrt{n}}$

Therefore

$\mu_{\bar x}=21.1$

$\sigma_{\bar x}=\frac{4.8}{\sqrt{50}}$

$\sigma_{\bar x}=0.68$

Hence, the correct option is C) 21.1 and 0.68

7 0

3 years ago