Solve. Use the principle of square roots.x2+ 10x + 25 = 14
A. -5 + 
, -5 - 
B. 9
C. -
, 
D. 5 + 
, 5 - 
Answer: A
Mathematics
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Find the real or imaginary solutions by using the quadratic formula.x2 = 3 - 4x
A. {-2 ± i
}
B. {-1 ± 
}
C. {2 + 
}
D. {-2 ± 
}
Mathematics
Find the exact value of the following expression without using a calculator.csc2(2?) if ? = ?/6
A. 4
B. 
C. 
D. 
Mathematics
Find a, b, and h so that f(x) ? a sin (b(x - h)). Round to two decimal places if necessary.f(x) = 2 sin ?x + 3 cos ?x
A. a = 0.31, b = 3.14, h = 3.61 B. a = 5.00, b = 6.28, h = -0.45 C. a = 3.61, b = 3.14, h = -0.31 D. a = 4.29, b = 6.28, h = 0.31
Mathematics
Simplify the power of i to i, 1, -i or -1.
A. -1 B. 1 C. -i D. i
Mathematics