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3 years ago

Which statement is NOT true?

Mathematics

1 answer:

GalinKa [24]3 years ago

4 0

'D' is not true. Decimals can be either rational or irrational numbers.

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3. Do the following represent a function? Explain why or why not for each.

Alex777 [14]

Answer:

No and No

Step-by-step explanation:

Two x-intercepts match up to more than one y-intercept.

6 0

3 years ago

An automobile manufacturer claims that its van has a 40.3 miles/gallon (MPG) rating. An independent testing firm has been contra

vovikov84 [41]

Answer:

The value of the test statistic is -2.64.

Step-by-step explanation:

The test statistic is:

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the expected(claimed) mean, $\sigma$ is the standard deviation and n is the size of the sample.

An automobile manufacturer claims that its van has a 40.3 miles/gallon (MPG) rating.

This means that $\mu = 40.3$

After testing 250 vans, they found a mean MPG of 39.9. Assume the standard deviation is known to be 2.4.

This means, respectively, that:

$n = 250, X = 39.9, \sigma = 2.4$

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$t = \frac{39.9 - 40.3}{\frac{2.4}{\sqrt{250}}}$

$t = -2.64$

The value of the test statistic is -2.64.

7 0

2 years ago

How do I solve −5/6e−2/3e = −24

Luba_88 [7]

E=16 pls brainliest me have a good day/night

4 0

2 years ago

What is the p(3,1,2) on rolls of a die

Anna35 [415]

Number 3 is 1/6 to role a 1 on the second roll is 1/36= 1/6 X 1/6
to get 2 on the third role is 1/216 so the probability is 1/216

3 0

3 years ago

Store B sells the same computer as in the Example for $1,300. Store B offers a 20% discount on the computer. The tax rate is the

I am Lyosha [343]

Answer:

$1,300 discount of 20%=$260

6 0

2 years ago