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vitfil [10]
3 years ago
7

Simplify to create an equivalent expression. \qquad{-2(-5n+6)+5(2-7n)}−2(−5n+6)+5(2−7n)minus, 2, left parenthesis, minus, 5, n,

plus, 6, right parenthesis, plus, 5, left parenthesis, 2, minus, 7, n, right parenthesis Choose 1 answer: Choose 1 answer: (Choice A) A -2−2minus, 2 (Choice B) B -25n+10−25n+10minus, 25, n, plus, 10 (Choice C) C -25n+2−25n+2minus, 25, n, plus, 2 (Choice D) D -25n-2−25n−2
Mathematics
2 answers:
Usimov [2.4K]3 years ago
5 0

Answer:

The equivalent expression is - 25n - 2 and it matches with option D.

Step-by-step explanation:

We have to simplify and create the equivalent expression for

{- 2(- 5n + 6) + 5(2 - 7n)}

Now, {- 2(- 5n + 6) + 5(2 - 7n)}

= 10n - 12 + 10 - 35n

= - 25n - 2

Therefore, the equivalent expression is - 25n - 2 and it matches with option D. (Answer)

Mrrafil [7]3 years ago
3 0

Answer:

d. -25n-2

Step-by-step explanation:

got it right on khan academy. hope this helps

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It is given 5 and h + 1 are the roots of the quadratic equation x² + (k - 1)x - 5 = 0,where h and k are constant.Find the value
Liono4ka [1.6K]

Answer:

Hello,

<u>k=-3 and h=-2</u>

Step-by-step explanation:

5\ is\ a \ root \of \ x^2+(k-1)*x-5=0\\\\5^2+(k-1)*5-5=0\\\\5*(k-1)+20=0\\\\k-1=\dfrac{-20}{5} \\\\k=-4+1\\\\\boxed{k=-3}\\

h+1 is thus a root of x²+(-3-1)*x-5=0

x²-4x-5=0

x²+x-5x-5=0

x(x+1)-5(x+1)=0

(x+1)(x-5)=0

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6 0
3 years ago
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Lynna [10]

Answer:

x = 14

Step-by-step explanation:

Since this is a right triangle, we can use the Pythagorean theorem

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48 ^2 + x^2 = 50^2

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3 years ago
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jarptica [38.1K]

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Step-by-step explanation:

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