Multiply and simplify any radicals in your answer. Assume that all variables represent positive real numbers.
(
- 
)
A. 3
+ 3
B. 
C. 12
D. 
- 
Answer: D
Mathematics
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Evaluate the expression.63
A. 18 B. -216 C. -18 D. 216
Mathematics
Find the product of the complex number and its conjugate.-8i
A. -16 B. -64 C. 64 D. 16
Mathematics
Solve the problem.An experimental model for a suspension bridge is built in the shape of a parabolic arch. In one section, cable runs from the top of one tower down to the roadway, just touching it there, and up again to the top of a second tower. The towers are both 12.25 inches tall and stand 70 inches apart. Find the vertical distance from the roadway to the cable at a point on the road 14 inches from the lowest point of the cable.
A. 2.16 in. B. 1.76 in. C. 7.84 in. D. 1.96 in.
Mathematics
Find the mistake, then find the correct answer.
+ 
= 
What will be an ideal response?
Mathematics