Use the formula for the nth term to find r.a = -3, r > 0, a5 = -243
A. 
B. 81
C. 3
D. 9
Answer: C
Mathematics
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Write the equation of the line with the given slope and y-intercept.slope 4;y-intercept (0, 0)
A. y = 4x B. x = 4y C. y = x + 4 D. y = 4
Mathematics
The function f is one-to-one. Find its inverse.f(x) = 
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = 
D. f-1(x) = 
Mathematics
Solve the problem.Which of the following vectors is parallel to v = 9i + 5j?
A. w = 45i - 25j
B. w = 
i - 
j
C. w = - 
i + 
j
D. w = 
i + 
j
Mathematics
Solve the problem.A chemical solution contains 1% calcium. How much calcium is in 4 mL of solution?
A. 400 mL B. 0.04 mL C. 0.4 mL D. 40 mL
Mathematics