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RoseWind [281]
3 years ago
14

Please help me with this

Mathematics
2 answers:
zimovet [89]3 years ago
8 0

Answer:

1. -10x + 9

2. 7/16x + 2

3. 2/3x -2

4. x + 1/3

5. -7x - 2/15

Sphinxa [80]3 years ago
8 0

Answer:

1 is 6x+9

2 is 7/16x +2

3 is 2/3x -2

4 is x + 1/3

5 is -7x + -2/15

Step-by-step explanation:

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Evaluate u + xy, for u = 18, x = 10, and y = 8.
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7 0
3 years ago
The function f is defined by f(x) x2 -6x +21. What are the solutions of f(x) 0? Show your work.
Xelga [282]

f(x)= x^2 -6x +21

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add 9 to each side

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3 +- i sqrt(12)=x

simplify the square root  sqrt(12)= sqrt(4)sqrt(3) =2sqrt(3)

3 +- i 2sqrt (3) = x

Answer: 3+2isqrt(3)

            3-2isqrt(3)

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