Simplify the expression. All variables represent positive real numbers.
A. not a real number
B. 18x2
C. 49x2
D. 7x2
Answer: D
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Simplify.54 + (-65) + 120 - (-25) - 97
A. 37 B. 231 C. 167 D. -13
Find the function value.Find f(-6) when f(x) = 7 - 3x2.
A. -101 B. 115 C. 43 D. 25
Decompose v into two vectors v1 and v2, where v1 is parallel to w and v2 is orthogonal to w.v = 2i - 5j,
w = -2i - j
A. v1 = - 
i + 
j, v2 = 
i - 
j
B. v1 = - 
i + 
j, v2 = - 
i - 
j
C. v1 = - 
i + 
j, v2 = 
i - 
j
D. v1 = - 
i + 
j, v2 = 
i - 
j
Use the discriminant to determine whether the following equations have solutions that are: two different rational solutions; two different irrational solutions; exactly one rational solution; or two different imaginary solutions.t2 + 12t + 36 = 0
A. Two different rational solutions B. Exactly one rational solution C. Two different imaginary solutions D. Two different irrational solutions