Translate the sentence into a mathematical equation. Be sure to identify the meaning of all symbols.Speed is measured by distance divided by time.
A. If S represents speed, d distance, and t time, then t = 
.
B. If S represents speed, d distance, and t time, then d = 
.
C. If S represents speed, d distance, and t time, then S = 
.
D. If S represents speed, d distance, and t time, then S = 
.
Answer: C
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Suppose you have the following project digraph. (The numbers in parentheses represent hours.)
If we use decreasing-time algorithm to schedule this project with two processors, we should start by assigning
A. task B to one processor, task E to the other one. B. task A to one processor, task C to the other one. C. task A to one processor, task B to the other one. D. task B to one processor, task C to the other one. E. none of these
Choose the best answer.You might go ice skating if the outside temperature is about
A. -1° C. B. -41° C. C. 11° C. D. 21° C.
Write the equation of the line in slope-intercept form.m = 
, y-intercept (0, -3)
A. y = 
x + 3
B. y = - 
x - 3
C. y = - 
x + 3
D. y = 
x - 3
If n is an integer, n ? 180° represents an integer multiple of 180°, and 
represents an odd integer multiple of 90°. Decide whether the expression is equal to 0, 1, -1, or is undefined. cot(n ? 180°)
A. 1 B. Undefined C. -1 D. 0