Find n for the given value of an in the arithmetic sequence.an = -553
; 807
, 787
, 767
, . . .
A. n = 69
B. n = 68
C. n = 65
D. n = 66
Answer: A
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Find the mode(s) for the given sample data. The speeds (in mi/h) of the cars passing a certain checkpoint are measured by radar. The results are shown below.
A. 43.40 B. 43.5 C. 42.6 D. 42.6, 44.1, 43.5
Use the discriminant to determine the number and type of solutions for the given equation.x2 - 8x + 7 = 0
A. one (repeated) real rational solution B. two real rational solutions C. two imaginary solutions D. two real irrational solutions
Solve the problem.A manufacturer's cost is given by C(n) = 500 n1/3 + 1700, where C is the cost and n is the number of parts produced. Use the formula to determine the cost when 8 parts are produced.
A. $2200 B. $250 C. $2700 D. $3115
Determine whether f is continuous at c.f(x) = 6x4 - 7x3 + x - 4;c = 7
A. continuous B. not continuous