3 years ago

What is the length of segment AB?

Mathematics

1 answer:

GREYUIT [131]3 years ago

6 0

(5,4) you count over from a then down to b

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A set of math tests is normally distributed

Masteriza [31]

Answer:

wat is the actual question for this??

Step-by-step explanation:

6 0

4 years ago

Help please it will mean so much thanks ❤️

____ [38]

Answer:

y = 14

Step-by-step explanation:

y = x^2 -5x

Let x =7

y = 7^2 -5*7

y = 49- 35

y = 14

5 0

3 years ago

What number must be added to 15,-6, and 12 to have a mean of 5? Explain.

Genrish500 [490]

You need to add a -1

We can find this by setting up the equation like so

x + (-6) + 12 + 15 / 4 = 5

x + 21 = 20

x = 20 -21

x = -1

Now if we insert -1 where x is located in the equation, you will get a means of 5

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3 years ago

Perform the following calculations without rewriting the numbers in decimal form.

RSB [31]

Answer:

Answer will be $140\times 10^{13}$

Step-by-step explanation:

We have to perform the calculation $(1.42\times 10^{15}-2\times 10^{13})$ without changing into decimal

$1.42\times 10^{15}$ can be written as $142\times 10^{13}$

So $1.42\times 10^{15}-2\times 10^{13}=(142\times 10^{13}-2\times 10^{13})$

Now taking $10^{13}$ common

$10^{13}(142-23)=140\times 10^{13}$

6 0

3 years ago

Which value is the best estimate for the correlation coefficient of the data set?

solniwko [45]

Answer: The answer is D -0.5

Step-by-step explanation:

First off you can cross out A and B because they are zero and a positive because the line has a negative slope. So that leaves you with C, D, and E. C is close to zero so the plot would be pretty scattered about. D is an in between answer because it isn’t quite a strong correlation or a weak one. Finally E is close to -1 so it is a strong correlation.

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3 years ago