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satela [25.4K]
3 years ago
5

Solve: 2a - b + c = 0 a - b = -9 2a + b = 0

Mathematics
1 answer:
emmainna [20.7K]3 years ago
7 0

Answer:a=b/2-c/2

b=9+a

b=-2a

Step-by-step explanation:

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Y = 2x + 1<br> y = -2x + 1<br> y = -2x - 0.5<br> y = 2x - 0.5
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have you seen how he answers questions? doesn't deserve to have people answer his

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A gold chain with an original price of $120 is on sale for $96. What is the percentage of the discount?
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Answer:

$120 - A

Step-by-step explanation:

20% of 120 is 20.

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3 years ago
About 0.036% of the water on Earth is found in lakes and rivers. Which of the following show 0.036% written as a fraction? selec
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None of those equate to 0.036%
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4 years ago
What is the value of x?
Andrei [34K]

Answer:

x=2

Step-by-step explanation:

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(whole secant) x (external part) =         (whole secant) x (external part)

(1+x+4) * (x+4) = (11+x+1) * (x+1)

Combine like terms

(x+5) (x+4) = (x+12) (x+1)

FOIL

x^2 + 4x+5x + 20 = x^2 +  x+ 12x + 12

Combine like terms

x^2 + 9 x + 20 = x^2 + 13 x + 12

Bring everything to the left

x^2 + 9 x + 20- (x^2 + 13 x + 12) = x^2 + 13 x + 12-( x^2 + 13 x + 12)

x^2 + 9 x + 20- (x^2 + 13 x + 12) =0

Distribute the minus sign

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Combine like terms

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Subtract 8 from each side

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6 0
3 years ago
Given the parent function f(x) = x^2 describe the translation of the function y=(.2x)^2?
Bad White [126]

Answer:

Option C.

Step-by-step explanation:

Let f(x) = x ^ 2 be a quadratic function

Then we do the function y = f(bx) = (bx) ^ 2

Where b is a real number.

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If  0 Then the function y = (bx) ^ 2 represents a horizontal expansion compression of the function y = x ^ 2 by a factor of \frac{1}{b}

In this case, the equation is:

y = (0.2x) ^ 2 Then:

b = 0.2

0

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The correct option is: Option C

4 0
3 years ago
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