Two numbers have a sum of 30. Half of their difference is 7. Find the numbers.
1 answer:
Answer:
the correct answers are 22 and 8
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2x^2 - 11 = 87
2x^2 = 87 + 11 = 98
x^2 = 98/2 = 49
x = sqrt (49) = + or - 7
F(2)=8 and f(5v)=25v^2+15v-2
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The answer is D
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