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2 years ago

Please answer :)

1 answer:

8 0

I realise you've probably gotten past this question, but I'm throwing it out for all future askers of this question ¯\_(ツ)_/¯

C) ƒ(x) increases by a factor of 3

ƒ(x) increases by a factor of 3

f(4) = 3^4

f(5) = 3^5

f(5) /f(4) = 3^5 /3^4 = 3^5−4 = 3^1 = 3

The value of ƒ(x) changes from 81 to 243 over the interval from x = 4 to x = 5.

This is an increase by a factor of 3.

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Select the correct answer. What is the definition of csc θ ?

OleMash [197]

Answer:

A. csc θ=1/sinθ

Step-by-step explanation:

From SOHCAHTOA,

sine = opposite/ hypotenuse

Cos = adjacent / hypotenuse

Tan = opposite / adjacent

In a right angled triangle, the cosecant of an angle is the length of the hypotenuse divided by the length of the side opposite the angle. This is the inverse of sine , therefore:

Csc Ф = 1/ sinФ

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2 years ago

Select the correct answer. What is the average rate of change of f(x), represented by the table of values, over the interval [-3

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Answer:

Step-by-step explanation:\

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1 year ago

Which of the following is an x intercept of the function f(x)=x^2-81?

Doss [256]

<span>x intercept when f(x) = 0
so
</span><span>x^2-81 = 0
x^2 = 81
x = + 9 and x = -9

Answer
</span><span>C -9</span>

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2 years ago

Read 2 more answers

Without using a calculator, fill in the blanks with two

Akimi4 [234]

Answer:

Pretty sure its 7 and 8

Step-by-step explanation:

test it out

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2 years ago

Read 2 more answers

When Carson runs the 400 meter dash, his finishing times are normally distributed with a mean of 65 seconds and a standard devia

just olya [345]

Given Information:

Mean time to finish 400 meter dash = μ = 65 seconds

Standard deviation to finish 400 meter dash = σ = 2.5 seconds

Confidence level = 95%

Required Information:

95% confidence interval = ?

Answer:

$CI = 60 \: to \: 70 \: seconds$

Step-by-step explanation:

In the normal distribution, the empirical rule states approximately 68% of all the data lie within 1 standard deviation from the mean, approximately 95% of all the data lie within 2 standard deviations from the mean and approximately 99.7% of all the data lie within 3 standard deviations from the mean.

The confidence interval for 95% confidence limit is given by

$CI = \mu \pm 2\sigma$

Since approximately 95% of all the data lie within 2 standard deviations from the mean. μ is the mean time Carson takes to finish 400 meter dash and σ is the standard deviation.

$CI = 65 \pm 2(2.5)$

$CI = 65 \pm 5$

$CI = 65 - 5 \: to \: 65 + 5$

$CI = 60 \: to \: 70 \: seconds$

Therefore, the 95% confidence interval is between 60 to 70 seconds

What does it mean?

It means that we are 95% confident that the Carson's mean to finish 400 meter dash is within the interval of (60, 70).

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2 years ago