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Naya [18.7K]
4 years ago
10

What is the value of the expression -2^2+4x(-3) when x= -3

Mathematics
1 answer:
Kisachek [45]4 years ago
6 0
It will be
(-2)^2+4*(-3)(-3) =40
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What is the value of x and the length of segment DE?
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Answer:

Part 1) x=6.6\ units

Part 2) DE=16.2\ units

Step-by-step explanation:

Part 1) Find the value of x

we know that

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\frac{5}{9}=\frac{9}{2x+3} \\ \\5*(2x+3)=9*9\\ \\10x+15=81\\ \\10x= 81-15\\ \\10x=66\\ \\ x=6.6\ units

Part 2) Find the length of DE

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substitute the value of x

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