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3 years ago

PLZ HURRY 50 PT AND BRAINLIEST

Mathematics

2 answers:

Zanzabum3 years ago

5 0

Answer: Hello fellow student to answer your question,

The answer is D

Step-by-step explanation:

Hope this helps!

Have a great day!

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Yakvenalex [24]3 years ago

5 0

Answer:

The answer is D

Step-by-step explanation:

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Answer:

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3 years ago

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3 years ago

I'm given 10=log(x) and I'm supposed to find the x-intercept.

Alex_Xolod [135]

Answer:

x = 10^10

Step-by-step explanation:

You are right to question the question. As posed, it makes no sense.

The idea of an x-intercept is applicable to a relation involving two variables that can be graphed on a coordinate plane.

If you graph this equation on an x-y plane, it will be a vertical line at x = 10^10, so that would be the x-intercept.

_____

I suggest you ask for an explanation from your teacher.

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The graph of y=log(x) is something else entirely, as you know. The x-intercept of that graph is x=1.

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3 years ago

The endpoints of GH are g(-7,3) and h(1,-2) what’s the midpoint of GH

ValentinkaMS [17]

Answer: $\bigg(-3,\dfrac{1}{2}\bigg)$

<u>Step-by-step explanation:</u>

G = (-7, 3) H = (1, -2)

$M_{GH}=\bigg(\dfrac{X_G+X_H}{2},\dfrac{Y_G+Y_H}{2}\bigg)\\\\\\.\qquad = \bigg(\dfrac{-7+1}{2},\dfrac{3+(-2)}{2}\bigg)\\\\\\.\qquad = \bigg(\dfrac{-6}{2},\dfrac{1}{2}\bigg)\\\\\\.\qquad = \large\boxed{\bigg(-3,\dfrac{1}{2}\bigg)}$

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3 years ago

The mean life span of a brand name tire is 50,000 miles. Assume that the life spans of the tires are normally distributed, and t

Vlada [557]

Answer:

a) $P(X$

b) $P(\bar X>50200)=1-0.994=0.0062$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Let X the random variable that represent the mean life span of a brand name tire, and for this case we know the distribution for X is given by:

$X \sim N(\mu=50000,\sigma=800)$