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2 years ago

If f(x) = 2(x − 5), find f(8).

Mathematics

1 answer:

Dafna11 [192]2 years ago

4 0

Answer:

The answer is eight.

Step-by-step explanation:

We know that x is eight. That means we can plug eight in for x. If we do that we get 2^8-5. 8-5 is three, so our problem becomes 2^3, which is 8.

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What is the answer to this equation: 7.4 - 9 - 2r =18

lorasvet [3.4K]

We can get the answer to this equation by solving for the variable (r).

7.4 - 9 - 2r = 18

We want to get r on one side, so we want to push everything else to the other side.

-2r = 18 - 7.4 + 9

-2r = 19.6

2r = -19.6

r = -9.8

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3 years ago

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What is the distance between points a and e

kozerog [31]

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2 years ago

Using the formula below or Excel, find the correlation coefficient, r, for this set of scores. Answer choices are rounded to the

RideAnS [48]

The correlation coefficient measures the relationship between the two variables

The correlation coefficient is 0.234

<h3>How to determine the correlation coefficient</h3>

The formula of correlation coefficient is:

$r = \frac{1}{n - 1} * \sum{(\frac{x - \bar x}{\sigma_x})*(\frac{y - \bar y}{\sigma_y})$

Using the dataset from the complete question, we have:

$r = \frac{1}{5 - 1} * 0.9375$

Evaluate the difference

$r = \frac{1}{4} * 0.9375$

Evaluate the quotient

$r = 0.234375$

Approximate

$r = 0.234$

Hence, the correlation coefficient is 0.234

Read more about correlation coefficient at:

brainly.com/question/4219149

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1 year ago

Help pls whats the output

-Dominant- [34]

Answer:

its b

Step-by-step explanation:

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2 years ago

Please help me find the answer to tan x =31!

kykrilka [37]

You can use a calculator for this. Hope it helps! :)

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