Find the derivative.y = ecos x
A. - cos x esin x
B. - esin x
C. sin x ecos x
D. - sin x ecos x
Answer: D
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Use a tree diagram to answer the question.Using a tree diagram that shows how many ways a nickel, a dime, and a quarter can be flipped, determine how many ways you can get exactly two heads.
A. 3 B. 5 C. 4 D. 2
Solve.An architect used a scale of 
in. = 1 ft on his drawings. If his blueprint shows a building with the dimensions 
in. by 40 in., what is the actual size of the building?
Fill in the blank(s) with the appropriate word(s).
State the end behavior of the graph of f.f(x) = x2 + x3 + 4
A. Up on left side, down on right side B. Up on both sides C. Down on left side, up on right side D. Down on both sides
Solve.Leah has $176 in her checking account. She writes a check for $19, makes a deposit for $84, and then writes another check for $231. Find the amount left in her account.
A. $158 B. $10 C. -$10 D. -$158