Solve the problem.A pendulum bob swings through an arc 60 inches long on its first swing. Each swing thereafter, it swings only 65% as far as on the previous swing. What is the length of the arc after 9 swings? Round to two decimal places.
A. 312.00 in.
B. 1.91 in.
C. 1.24 in.
D. 0.81 in.
Answer: B
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Use the Intermediate Value Theorem to determine whether the polynomial function has a real zero between the given integers.f(x) = 3x5 - 4x3 + 6x2 + 6; between -2 and -1
A. f(-2) = 34 and f(-1) = 13; no B. f(-2) = -34 and f(-1) = -13; no C. f(-2) = 34 and f(-1) = -13; yes D. f(-2) = -34 and f(-1) = 13; yes
Solve the inequality by the test-point method. Write the solution in interval notation.(x + 10)(x + 7)(x - 10) < 0
A. (-10, -7) ? (10, ?) B. (-?, -7) C. (10, ?) D. (-?, -10) ? (-7, 10)
Use properties of real numbers to calculate the expression mentally.77 + 99
A. 175 B. 167 C. 176 D. 177
Using the figure below, if ? = 26° and y = 6, determine the exact value of x.
A. ?
B. ?
C. 
D. ?
E. ?