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2 years ago

8

What is the value of c

1 answer:

Veseljchak [2.6K]2 years ago

5 0

X^2 + 6x = 13. We are to "complete the square."

x^2 + 6x + (6/2)^2 - (6/2)^2 = 13

Then (x+3)^2 - 9 = 13, or (x+3)^2 = 22.

then x+3 = plus or minus sqrt(22), or x = -3 plus or minus sqrt(22).

Given x^2 + 6x = 13, to complete the square we insert " 3^2 - 3^2 " between the "6x" and the "=" sign.

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Evaluate the expression below for m=350. 3.5m

aev [14]

Just plug in 350 for 'm':

$\sf 3.5m$

$\sf 3.5(350)$

Multiply:

$\boxed{\sf 1225}$

7 0

3 years ago

Find the volume of the Firgure

Andrej [43]

The answer is of the figure is 24

7 0

3 years ago

Which is the solution of the equation 1/4 ( 3x - 1 ) = 2x -2/3

agasfer [191]

Answer:

x = 1/3

Step-by-step explanation:

Perform the indicated multiplication:

Clear out the fractions. The LCD here is 12, so multiply both sides by 12, obtaining:

3(3x - 1) = 24x - 8, or

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3 0

3 years ago

Pls help I dont know how to do this

german

Answer:

1. CE = 63
2. x = 16

Step-by-step explanation:

Use proportions to solve.

Corresponding sides have same ratio.

<u>Question 1</u>

DE/EG = CE/EF

(6x + 3)/17 = (8x - 1)/21
21(6x + 3) = 17(8x - 1)
126x + 63 = 136x - 17
10x = 80
x = 8

CE = 8*8 - 1
CE = 63

<u>Question 2</u>

KM/MD = KZ/ZH

(x + 8)/21 = 32/28
x + 8 = 21*8/7
x + 8 = 24
x = 24 - 8
x = 16

5 0

3 years ago

Solve for n. 2n +2 > 16<br> A)n=7<br> B)n<7<br> C)n>7<br> D)n<-7

Alex

Inequality : 2n + 2 > 16

2n > 16 - 2
2n > 14
n > 14/2
n > 7

-> Answer C

6 0

2 years ago

Read 2 more answers