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3 years ago

13

Please help me answer this !!!

1 answer:

g100num [7]3 years ago

5 0

Answer:

uhm right angle 90 degrees

Step-by-step explanation:

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For all values of x, f(x)=x2+3x and g(x)=x-4

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Answer:

Question is not understandable....

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2 years ago

Which choice shows the coordinates of C’ if the trapezoid is reflected across the y-axis?

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A reflection through the axis and is given by the following transformation rule:
(x, y) -------> (-x, y)
We have the following point:
C = (5, 3)
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Answer:
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3 years ago

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An automobile manufacturer has given its van a 47.2 miles/gallon (MPG) rating. An independent testing firm has been contracted t

7nadin3 [17]

Answer:

A

The test statistics is $t = -1.7$

B

The Null and Alternative hypothesis are

$H_o : \mu = 47.2$ and $H_a : \mu \ne 47.2$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 47.2 miles/gallon(MPG)$

The sample size is $n = 250 \ van$

The sample mean is $\= x = 47.0$

The sample standard deviation is $\sigma = 1.9$

The level of significance is $\alpha = 0.02$

Given that the value which the manufacturer gave the automobile is 47.2 and it is believed that this is not correct, then

The Null Hypothesis is

$H_o : \mu = 47.2$

The alternative Hypothesis is

$H_a : \mu \ne 47.2$

The test statistics can be mathematically evaluated as

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

substituting values

$t = \frac{\= 47- 47.2}{\frac{1.9 }{\sqrt{250} } }$

$t = -1.7$

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3 years ago

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Points B(-4,4) and D (10,4) lie on circle G. The line segment connecting the two points is a diameter of the circle.

Gnesinka [82]

A Bc I just did it and got it right

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2 years ago

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