Using a sum or difference identity, write the following as an expression involving functions of x.tan 
A. -tan x
B. tan x
C. 
D. 
Answer: D
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Multiply.(-4x5y2)(4xy2)(8x5y)
A. 8x25y4 B. -128x25y4 C. 8x11y5 D. -128x11y5
Find the angle between vectors v and w. Round the answer to the nearest tenth of a degree.v = 
, w = 
A. 164.9° B. 58.7° C. 15.1° D. -74.9°
Malia buys a chocolate-strawberry-vanilla cake in Figure(i) for $14.00 . She cuts the cake into six 60° wedges as shown in Figure (ii). Malia likes chocolate twice as much as vanilla and likes vanilla twice as much as strawberry.
What is the value of piece 6 to Malia?
A. $2.00 B. $1.50 C. $2.50 D. $1.00 E. none of these
If the number in the statement is written in scientific notation, write it without exponents. If it is written without exponents, write it in scientific notation.The population of a small country is 8,677,000.
A. 8.677 × 106 B. 8.677 × 10-5 C. 8.677 × 104 D. 8.677 × 105