Use the fundamental identities to simplify the expression.
+ sec ? cos ?
A. tan2?
B. csc2?
C. 1
D. sec2?
Answer: D
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A preschool charges $14 for a child to attend its morning session or $7 to attend the afternoon session. No child can attend both. 40 children are enrolled in the preschool. If the daily receipts are $420, how many children attend the morning session?
A. 18 B. 16 C. 36 D. 23 E. 20
A cow is tied to a silo with radius 9 by a rope just long enough to reach the opposite side of the silo. Find the area available for grazing by the cow. Round the answer to the nearest hundredth.
 FIGURE 1.png)
Identify the numerical coefficient of the term. m
A. -1 B. m C. 0 D. 1
Evaluate the function for the given values of a and b. Then use the intermediate value theorem to determine which of the statements below is true.a = 1 and b = 2f(x) = 4x5 - 5x3 - 8x2 + 5
A. f(1 ) and f(2) have opposite signs, therefore the function f has a real zero between 1 and 2. B. f(1 ) and f(2) have the same sign, therefore the function f has a real zero between 1 and 2. C. f(1 ) and f(2) have opposite signs, therefore the function f does not have a real zero between 1 and 2. D. f(1 ) and f(2) have the same sign, therefore the intermediate value theorem cannot be used to determine whether f has a real zero between 1 and 2.