Solve the problem.Find the sum of the first 4 terms of the arithmetic sequence with first term -13 and common difference -2.
A. -21
B. -64
C. -13
D. -52
Answer: B
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Find the tangential and normal components of the acceleration.r(t) = (t + 9)i + (ln(cos t) - 3)j + 1k
A. a = (-sec t tan t)T - (sec t)N B. a = (sec t tan t)T - (sec t)N C. a = (sec t tan t)T + (sec t)N D. a = (-sec t tan t)T + (sec t)N
Use the laws of exponents to simplify each expression using positive exponents only. Assume all variables represent nonzero real numbers.4-3 ? 4
A. 64
B. 
C. 16
D. 
Use the substitution method or the elimination method to solve the system. If the system has infinitely many solutions, express the ordered pair in terms of x or y. x + 6y = -65x + 30y = -30
A. (0, 0)
B. (-6, 0)
C. no solution
D. 
or (-6y - 6, y)
Translate the sentence into an equation.g varies inversely as the square root of b.
A. g = 
B. g = 
C. g = 
D. g = 