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Genrish500 [490]
3 years ago
13

What values of x make the equation x2 + 9x – 22 = 0 true? Check all that apply.

Mathematics
2 answers:
maria [59]3 years ago
7 0

Answer:c


Step-by-step explanation: so based on this I picked graph C since the direction of the arrow goes right


JulijaS [17]3 years ago
6 0

Answer:

x=-11\text{ or }x=2

Step-by-step explanation:

We have been given an equation x^{2}+9x-22=0. We are asked to find the values that will make our given equation true.

We will factor our given equation to find the solutions.

By splitting the middle term we will get,

x^{2}+11x-2x-22=0

x(x+11)-2(x+11)=0

(x+11)(x-2)=0

x+11=0\text{ or }x-2=0

x+11-11=0-11\text{ or }x-2+2=0+2

x=-11\text{ or }x=2

Therefore, the values x=-11\text{ or }x=2 will make our given equation true.

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Step-by-step explanation:

4x + y = 6 => 8x + 2y = 12.

8x + 2y = 12

+ (-5x - 2y = -3)

=> 3x = 9, x = 3.

Therefore 4(3) + y = 6, 12 + y = 6, y = -6.

The solutions are x = 3 and y = -6.

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3 years ago
PLEASE HELP ASAP! DUE TOMORROW!
Dvinal [7]

Answer:

:)

Step-by-step explanation:

            28

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6 0
3 years ago
Read 2 more answers
A local salesman receives a base salary of $975 monthly. He also receives a commission of 7% on all sales over $1250. How much w
slava [35]

Answer:

  $17,321.43

Step-by-step explanation:

The amount of monthly income from commissions would have to be ...

  $2100 -975 = $1125

This is 7% of sales over $1250, so the sales (s) would need to be ...

  1125 = 0.07(s -1250)

  1125 = .07s -87.50 . . eliminate parentheses

  1212.50 = 0.07s . . . . add 87.50

  17,321.43 = s . . . . . . . divide by 0.07

He would have to sell $17,321.43 in a month if he needed an income of $2100.

8 0
3 years ago
A triangle with angles of 30, 60, and 90 degrees is drawn. Could all three side measures be the same length? Explain. PLEASE HEL
Semmy [17]

Answer:

No they would not because they are all different angles but if they were all the same numbers than yes so this triangle is a scalene that has no angles that are the same

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3 years ago
A ladder placed 7 feet away from a wall,and makes 45 angle with ground.what is the length of the ladder?
elixir [45]

Answer:

L = 14/\sqrt2} <u>OR</u> 9.899

Step-by-step explanation:

cos(angle) = adjacent/ hypotenuse

hypotenuse = length of ladder

adjacent = 7 feet

length of ladder = L

1/L = cos(45)/7

L = 7/cos(45)

<u><em>MAKE SURE CALCULATOR IS IN DEGREE MODE</em></u>

L = 7/(\sqrt{2}/2)

L = 14/\sqrt{2}

5 0
3 years ago
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