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drek231 [11]
3 years ago
9

What is the first step in solving the quadratic equation -5x2+8=133

Mathematics
1 answer:
astraxan [27]3 years ago
4 0
I don’t think you can solve by using quadratic equation

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Question 1 help!? Asap
Paha777 [63]

Hi!

If the perimeter of the triangle is 41, then x is:

5x + 2 + 6x - 3 + 3x = 41

5x + 6x + 3x = 41 + 3 - 2

14x = 42

x = 42/14

x = 3

The x is 3.

7 0
3 years ago
The choir sold boxes of candy and teddy bears near Valentine’s Day to raise money. They sold 57 items altogether. Bears sold for
nevsk [136]

Answer:

19 bears, 38 boxes of candy.

Step-by-step explanation:

We can use a system of equations (b = # of bears, c = # of candy boxes):

<em>b + c = 57, 8b + 6c = 380</em>.

We can use substitution by isolating b in the first eq.: <em>b = 57 - c</em>, then substitution b with 57 - c in the second eq.: <em>8(57 - c) + 6c = 380</em>.

Then, we solve: 456 - 8c + 6c = 380, 76 = 2c, c = 38 candy boxes.

Finally we plug in 38 for c in the first eq.: b + 38 = 57, b = 19 bears.

6 0
3 years ago
Ryan mows lawns in the summer. He charges $15 for every 12 hour of mowing. This is represented by the equation y=15x , where y i
Greeley [361]

Answer:

$45

Step-by-step explanation:

hopefully it helps byee

7 0
3 years ago
Find the sum of 7x^2-3x+5 and 8x+2
netineya [11]

Answer:

7x²+5x+7

Step-by-step explanation:

7x²-3x+5+8x+2

7x²+5x+7

5 0
2 years ago
Which expression would be easier to simplify if you used the commutative property to change the order of the numbers
kow [346]

Step-by-step explanation:

OPTION A

(-40) + (-30) + 28

5 0
3 years ago
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