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Firlakuza [10]
3 years ago
7

Which equation has the solutions x = 2.5 and x = -3 ?

Mathematics
1 answer:
forsale [732]3 years ago
8 0

Answer:

Well, you didn't show the equation .  However we can generate an equation

by multiplying (x - 2.5) * (x +3)

x^2 -2.5x +3x -7.5 = 0

x^2 +.5x -7.5 = 0

DOUBLE-CHECK

Solving with the quadratic formula:

x = 2.5 and x = -3

CORRECT!!!

Step-by-step explanation:

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MZGFN= 4x + 10, mZNFE = 14x + 3,<br> and mzGFE=157º. Find m2NFE.
mojhsa [17]

Answer:

115°

Step-by-step explanation:

1. Calculate the value of x

\begin{array}{rcc}m\angle GFM + m\angle NFE & = & m\angle GFE\\4x + 10 + 14x + 3 & = & 157\\18x + 13 & = & 157\\18x & = & 144\\x & = & \dfrac{144}{18}\\ & = & 8\\\end{array}

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m∠NFE = 14x + 3 = 14(8) + 3 = 112 + 3 = 115

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3 years ago
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3 years ago
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Step-by-step explanation:

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Hope it helped!

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