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2 years ago

Is y = 2x Linear or non-linear and why?

Mathematics

1 answer:

pshichka [43]2 years ago

3 0

Answer:it is linear because every time x increases 1, y increases by 2.

Step-by-step explanation:it is a linear relationship and it is changing at a constant rate

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Adam borrowed $16,780 at 12.5 percent for 10 years. What is his monthly payment?

Scrat [10]

ANSWER:

245.83

Step-by-step explanation:

16,780/100=167.8

167.8 x 1.465= 245.827

4 0

3 years ago

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lbvjy [14]

Answer:

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3 years ago

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vlada-n [284]

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3 years ago

9/11=?/22<br> A.12<br> B.4<br> C.9<br> D.18

Yanka [14]

9/11 is equal to 18/22, so then D.

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3 years ago

Suppose the national mean SAT score in mathematics was 510. In a random sample of 60 graduates from Stevens High, the mean SAT s

zalisa [80]

Answer:

We accept the alternate hypothesis and conclude that mean SAT score for Stevens High graduates is not the same as the national average.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 510

Sample mean, $\bar{x}$ = 502

Sample size, n = 60

Sample standard deviation, s = 30

Alpha, α = 0.05

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 510\\H_A: \mu \neq 510$

We use Two-tailed t test to perform this hypothesis.

Formula:

$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n-1}} }$ Putting all the values, we have

$t_{stat} = \displaystyle\frac{502- 510}{\frac{30}{\sqrt{60}} } = -2.0655$

Now,

$t_{critical} \text{ at 0.05 level of significance, 59 degree of freedom } = \pm 1.671$

Since,

$|t_{stat}| < |t_{critical}|$

We reject the null hypothesis and fail to accept it.

We accept the alternate hypothesis and conclude that mean SAT score for Stevens High graduates is not the same as the national average.

7 0

3 years ago