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3 years ago

14

Help PLSSSSSSSSSSSSSSSSS extra points

1 answer:

arlik [135]3 years ago

7 0

Answer:

85 messages

Step-by-step explanation:

The system of equations for this is

35 + .10x

18 + .3x

where x = the number of text messages

Usually, you would use substitution or elimination to solve this problem. However, because the answer choices were given, you can just plug in the values.

When you plug in 85, or x = 85, you get 43.5 for both equations because

35 + .10(85) = 43.5 18 + .3(85) = 43.5

Therefore, the answer would be 85 messages becuase both plans will cost the same when you send 85 text messages!

:)

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HELP! PLZ I NEED THIS ASAP

harina [27]

Answer:

$2x^{4}+x^{3}-x+2$

Step-by-step explanation:

To find which one is prime, let's try to factor them all. We can use the factoring by grouping method.

$x^{3}+3x^{2}-2x-6$

$x^{3}+3x^{2}$ and $-2x-6$

$x^{2}(x+3)$ and $-2(x+3)$

So this one is not prime, since you can still factor it.

$x^{3}+2x^{2}-3x-6$

$x^{3}+2x^{2}$ and $-3x-6$

$x^{2}(x-2)$ and $3(x-2)$

So this one is not prime, since you can still factor it.

$4x^{4}+4x^{2}-2x-2$

$4x^{4}+4x^{2}$ and $-2x-2$

$4x^{3}(x+1)$ and $-2(x+1)$

So this one is not prime, since you can still factor it.

$2x^{4}+x^{3}-x+2$

$2x^{4}+x^{3}$ and $-x+2$

$x^{3}(2x+1)$ and -x+2 cannot be further factored.

Therefore, $2x^{4}+x^{3}-x+2$ is a prime.

6 0

3 years ago

38 divided by 8. Show ALL work for credit. NO WORK NO CREDIT<br> :((

scZoUnD [109]

Answer:

38 / 8 is 4.75

Step-by-step explanation:

Um I tried putting a photo of my work but it wouldn't let me sorry ;-;

7 0

3 years ago

What is the mean?

goblinko [34]

35/7=5

your mean is 5

hope this helps

4 0

3 years ago

Read 2 more answers

What is the relationship between standard deviation and mean

horrorfan [7]

Answer:

A standard deviation (or σ) is a measure of how dispersed the data is in relation to the mean. Low standard deviation means data are clustered around the mean, and high standard deviation indicates data are more spread out.

Step-by-step explanation:

hope this helps

plz mark brainliest

have a nice day

5 0

2 years ago

Using the linear combination method, what is the solution to the system of linear equations 5 x + 3 y = negative 10 and Negative

andreev551 [17]

Answer:

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3 0

3 years ago