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Oliga [24]
3 years ago
6

What are the two solutions of 2x2 = –x2 – 5x – 1?

Mathematics
1 answer:
Thepotemich [5.8K]3 years ago
3 0

Answer:

Step-by-step explanation:

quadratic formula

x = -(-5)+

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yan [13]

Answer:

12/30 or 6/15

Step-by-step explanation:

3x4=12

5x6=30

12/30

simplified would be 12/30 divided by 2/2

the answer is 6/15

7 0
2 years ago
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Which of the following place value tables shows 40,833?
jolli1 [7]

40,833 has...

4 Ten Thousands

8 Hundreds

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3 years ago
Subtract -5x^2+2x-5−5x <br> 2<br> +2x−5 from 7x^2-47x <br> 2<br> −4.
marta [7]

Answer:

-12x^2+46x-6

Step-by-step explanation:

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3 years ago
3x – 2y = 17 <br> –2x – 5y = 14 <br> Solve using Elimination Please show work
OleMash [197]

Answer:

The solution is x=3 , y=-4 or (3,-4)

Step-by-step explanation:

Given equations (1 and 2) are:

3x- 2y = 17\\-2x -5y = 14

To solve a system of equation with elimination method, the co-efficients of one of the variables has to be equated and then the equations are added or subtracted to get an equation in one variable.

Multiplying equation 1 by 2:

2(3x-2y) = 2*17\\6x-4y = 34\ \ \ \ \ Eqn\ 3

Multiplying equation 2 by 3

3(-2x-5y) = 3*14\\-6x-15y = 42\ \ \ \ Eqn\ 4

Adding equation 3 and 4

(6x-4y) + (-6x-15y) = 34+42\\6x-4y-6x-15y = 76\\-19y = 76\\\frac{-19y}{-19} = \frac{76}{-19}\\y = -4\\

Putting y = -4 in equation 1

3x-2(-4) = 17\\3x+8 = 17\\3x = 17-8\\3x = 9\\\frac{3x}{3} = \frac{9}{3}\\x = 3

Hence,

The solution is x=3 , y=-4 or (3,-4)

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3 years ago
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klasskru [66]

Answer:

He could buy 2 brackets

Step-by-step explanation:

42.50- 29= 13.50  and if you buy two that's nine (9.00) + plus tax does not go over budget (shirt included)

3 0
2 years ago
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