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Paha777 [63]
3 years ago
15

Simplify the following expression: x^2+y^2

Mathematics
1 answer:
Vinil7 [7]3 years ago
5 0

Answer:

({x + y})^{2}  - 2xy \\  {(x - y)}^{2}  + 2xy

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Angle A and angle B are complementary. m Angle A = 54 and M angle B = 2x+2. What is the m angle B
Gnom [1K]

Answer:

m=17

Step-by-step explanation:

Complementary means they add to equal 90 degrees.

1) 90-A=36

2)36=2x+2

3) Subtract 2 from both sides, 34=2x

4) Divide by 2 17=x

4 0
3 years ago
Does (2,9) make the inequality y = 4x + 1 true?
Brums [2.3K]

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Step-by-step explanation:

If you graph it and you go to the point (2,9) then the line will pass it

5 0
3 years ago
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Use the quadratic formula to solve x2 + 2x - 120 = 0. Think about what other method could also be used to solve this equation. a
pshichka [43]

Answer:

x = 10 , -12

Step-by-step explanation:

Solution:-

- The given quadratic equation is to be solved using the quadratic formula. The general form of a quadratic equation is:

                           ax^2 + bx + c =0  

Where, [ a , b and c are constants ]

- The quadratic formula is given as:

                       

                           x = \frac{-b+/-\sqrt{b^2 - 4*a*c} }{2a}

- The given equation is:

                             x^2 + 2x - 120 = 0

Where, a = 1 , b = 2 , c = -120

- Solve using quadratic formula:

                       x = \frac{-2+/-\sqrt{2^2 - 4*1*(-120)} }{2*1}\\\\x = \frac{-2+/-\sqrt{4 + 480} }{2}\\\\x = \frac{-2+/-(22) }{2}\\\\\\x = 10 , -12    

7 0
3 years ago
Which of the following illustrates the truth value of the following mathematical statements? 6 + 3 = 9, and 5 • 5 = 20
aleksley [76]
You answer should be
C. T F → F
6 0
4 years ago
A sweater is regularly 32$. It is 25% off would the amount the shopper saved be considered the part , whole,or percent?
Ivahew [28]
The answer is 24 dollars
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3 years ago
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