Graph the equation.f(x) = x2 + 8x + 16
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Simplify the expression using the quotients-to-powers rule.
-2
A. 
B. x2y12
C. 
D. 
Mathematics
Solve the problem.The half-life of a certain radioactive substance is 13 years. Suppose that at time t = 0 , there are 20 g of the substance. Then after t years, the number of grams of the substance remaining will be N(t) = 20(1/2)t/26How many grams of the substance will remain after 39 years?
A. 0.88 g B. 1.77 g C. 7.07 g D. 3.54 g
Mathematics
Complete the equation so the result is an identity. (sec x - tan x)(sec x + tan x) = ___
A. -1 B. sec2x + tan2x C. sec2x + 1 D. 1
Mathematics
A card is drawn from a standard deck of cards. Expressing your answer as a fraction in simplest form, what is the probability of getting the specified card?an ace
A. 
B. 
C. 
D. 
Mathematics