Find an equation of variation in which y varies inversely as x and the following is true.y = 0.9, when x = 0.7
A. y = 
B. y = 
C. y = 
x
D. y = 
x
Answer: B
Mathematics
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For the pair of functions, find the indicated composition.f(x) = 
, g(x) = 4x + 9Find (g ? f)(x).
A. 4x + 27
B. x + 18
C. x - 
D. x
Mathematics
Use half-angle formulas to find the exact value for the following:
?
?
What will be an ideal response?
Mathematics
Find the angle between vectors v and w. Round the answer to the nearest tenth of a degree.v = 
, w = 
A. 161.6° B. -71.6° C. 18.4° D. 55.3°
Mathematics
Write the decimal as a fraction or a mixed number. Express your answer in simplest form.-0.002
A. - 
B. - 
C. - 
D. - 
Mathematics