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ZanzabumX [31]
2 years ago
13

What is the value of x in -4(x+3)=8 please help me quickly !!

Mathematics
1 answer:
xz_007 [3.2K]2 years ago
4 0

Step 1: Simplify both sides of the equation.

−4(x+3)=8

(−4)(x)+(−4)(3)=8(Distribute)

−4x+−12=8

−4x−12=8

Step 2: Add 12 to both sides.

−4x−12+12=8+12

−4x=20

Step 3: Divide both sides by -4.

−4x

____

−4

=

20

________

−4

x=−5

Answer:

x=−5

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i don't understand how to make it into a graphing form? how do you find the center and radius? (I'm confused because it has a 4x
Vilka [71]

Answer: \bold{(x-2)^2+(y-3)^2=\dfrac{1}{4}}

               Center = (2, 3)          radius = \bold{\dfrac{1}{2}}

<u>Step-by-step explanation:</u>

When both the x² and y² values are equal and positive, the shape is a circle. Complete the square to put the equation in format:

(x-h)² + (y-k)² = r²    where

  • (h, k) is the vertex
  • r is the radius

1) Group the x's and y's together and move the number to the right side

   4x² - 16x         + 4y² - 24y               = -51        

2) Factor out the 4 from the x² and y²

    4(x² - 4x          ) + 4(y² - 6y            ) = -51

3) Complete the square (divide the x and y value by 2 and square it)

    4[x^2-4x+\bigg(\dfrac{-4}{2}\bigg)^2]+4[y^2-6y+\bigg(\dfrac{-6}{2}\bigg)^2]=-51+4\bigg(\dfrac{-4}{2}\bigg)^2+4\bigg(\dfrac{-6}{2}\bigg)^2

  = 4(x - 2)² + 4(y - 3)² = -51 + 4(-2)² + 4(-3)²

  = 4(x - 2)² + 4(y - 3)² = -51 + 4(4) + 4(9)

  = 4(x - 2)² + 4(y - 3)² = -51 +  16  +  36

  = 4(x - 2)² + 4(y - 3)² = 1

4) Divide both sides by 4

   (x-2)^2+(y-3)^2=\dfrac{1}{4}

  • (h, k) = (2, 3)
  • r=\dfrac{1}{2}

6 0
3 years ago
Simplify the expression. Write your answer as a power. <br> 6^10/6^4
vladimir2022 [97]

Answer:

6^6

Step-by-step explanation:

Divide the terms with the same base by subtracting their exponents.

6^10 - 4 = 6^6

8 0
3 years ago
Read 2 more answers
Question 2 options:<br><br> A. y=5x+5<br> B. y=15x+5<br> D. Y=1/5x+5<br> C. Y=10x+5
expeople1 [14]

Answer:

A)

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is 4(1-2b)+7b-10
shutvik [7]

Answer:

-6-b

Step-by-step explanation:

4(1-2b)+7b-10

Multiply what's in parantheses

4(1)=4

4(-2b)=-8b

4-8b+7b-10

Combine like terms

4-10 -8b+7b

-6-b

Hope this helps :)

6 0
2 years ago
NEED ASAP
vovikov84 [41]

Answer:

It D

Step-by-step explanation:

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6 0
3 years ago
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