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2 years ago

The distance on the number line from 5 to 12 equals 3x – 2. What is the value of x?

Mathematics

2 answers:

faust18 [17]2 years ago

6 0

The value of <em>x</em> is 32.

This is correct, I took the test and it was correct :)

edit: Thank you so much for Brainliest!!

Sholpan [36]2 years ago

4 0

The value of <em>x</em> is 32.

This is correct, I took the test and it was correct :)

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Determine the slope of the line that is perpendicular to the line y = -7x - 12.

maria [59]

Answer:

the slope that is perpendicular to line y=-7x-12 is 1/7

1/7 is the perpendicular slope

Step-by-step explanation:

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2 years ago

Find the mean and range 26 19 23 39 31 34 23 25

Delicious77 [7]

I got 27.5 for the mean
mean: you add up all the #'s and divide them my their quantity( in other words by how many numbers there are)
In your case you have 8 numbers, you add them and divide them by 8!

Hope it helps ;)

4 0

2 years ago

Write and solve a system of linear equations: The larger of two numbers is 18 more than 5 times the smaller. If 3 times the larg

marshall27 [118]

Answer:

8 and -2

Step-by-step explanation:

Let the numbers be l and s.

We have equations:

l = 5s + 18

3l + 4s = 16

Solve for s by substituting l into the second equation:

3(5s + 18) + 4s = 16

15s + 54 + 4s = 16

19s = 16 - 54

19s = -38

s = -38/19

s = -2

Find the value of l:

l = 5(-2) + 18

l = -10 + 18

l = 8

3 0

2 years ago

Find a cubic function that has the roots 5 and 3-2i

Zolol [24]

Answer:

$P(x)=x^3-11x^2+43x-65$

Step-by-step explanation:

If the complex number $3-2i$ is a root of a cubic function, then the complex number $3+2i$ is a root too. Thus, the cubic function has three known roots $5,\ 3-2i,\ 3+2i$ and can be written as

$P(x)=(x-5)(x-(3-2i))(x-(3+2i)),\\ \\P(x)=(x-5)(x^2-x(3-2i+3+2i)+(3-2i)(3+2i)),\\ \\P(x)=(x-5)(x^2-6x+9-4i^2),\\ \\P(x)=(x-5)(x^2-6x+9+4),\\ \\P(x)=(x-5)(x^2-6x+13),\\ \\P(x)=x^3-11x^2+43x-65.$

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2 years ago

Suppose you want to be sure that the total cost of the three items does not go over a certain amount. How can you use estimation

Bond [772]

Answer:

i don't konw

Step-by-step explanation:

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2 years ago