Evaluate the expression if a = -5, b = 16, and c = 7.9ab + 8c
A. 191
B. -664
C. -141
D. -760
Answer: B
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Let p, q, r, and s represent the following statements: p: One plays hard. q: One is a guitar player. r: The commute to work is not long. s: It is not true that the car is working.Express the following statement symbolically.The commute to work is long.
A. ~s B. ~r C. r D. s
For the given functions f and g, find the requested function and state its domain.f(x) = 16 - x2; g(x) = 4 - xFind f + g.
A. (f + g)(x) = 4 + x; {x|x ? -4} B. (f + g)(x) = x3 - 4x2 - 16x + 64; all real numbers C. (f + g)(x) = -x2 - x + 20; all real numbers D. (f + g)(x) = -x2 + x + 12; all real numbers
Solve the equation using the square root property.2(x + 7)2 + 12 = 52
A. {7 + 2
, 7 - 2
}
B. {-7 + 2
, -7 - 2
}
C. {-7 + 2
i, -7 - 2
i}
D. {7 + 2
i, 7 - 2
i}
Change to a percent. Round your answer to the nearest tenth of a percent, if necessary.
A. 2.5% B. 31.3% C. 25% D. 80%