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Yanka [14]
2 years ago
5

Question 2 of 10

Mathematics
1 answer:
VLD [36.1K]2 years ago
4 0
The answer is y=-4x-2
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How much larger is 400 than 40?
dlinn [17]
360

400 - 40 = 360

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Use quadratic formula solve .7x^2 - 28x - 7​
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Answer:

x = 2 + sqrt(5) or x = 2 - sqrt(5)

Step-by-step explanation using the quadratic formula:

Solve for x over the real numbers:

7 (x^2 - 4 x - 1) = 0

Divide both sides by 7:

x^2 - 4 x - 1 = 0

Add 1 to both sides:

x^2 - 4 x = 1

Add 4 to both sides:

x^2 - 4 x + 4 = 5

Write the left hand side as a square:

(x - 2)^2 = 5

Take the square root of both sides:

x - 2 = sqrt(5) or x - 2 = -sqrt(5)

Add 2 to both sides:

x = 2 + sqrt(5) or x - 2 = -sqrt(5)

Add 2 to both sides:

Answer:  x = 2 + sqrt(5) or x = 2 - sqrt(5)

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What Happens to the value of the expression 100 minus X as X increases
Marta_Voda [28]

Step-by-step explanation:

if f (x) = 100 - x;

as x increases, the value of f(x) will decrease

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3 years ago
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Two angles of a triangle measure 45 degrees and 90 degrees. What is the third angle measure?
neonofarm [45]

Answer:

B

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Angles in a triangle add up to 180

Take 45 + 90 then subtract the answer from 180

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