Solve the problem.A student must answer 6 out of 10 questions on an exam. In how many different ways can he choose the questions?
A. 24
B. 5040
C. 1,000,000
D. 210
Answer: D
Mathematics
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Find the linearization L(x) of f(x) at x = a.f(x) = tan x, a = ?
A. L(x) = 2x - ? B. L(x) = x - 2? C. L(x) = x - ? D. L(x) = x + ?
Mathematics
150 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with mean ? = 65 and standard deviation ? = 10.The number of students scoring 65 points or more is approximately
A. 75. B. 95. C. 65. D. 50. E. none of these
Mathematics
What is f2 in the circuit below when R1 = 1 Kê, R2 = 4 Kê, C1 = 0.1 æF, C2 = 700 pF, and E = 20 V?
a. 390 KHz b. 284 KHz c. 169 KHz d. 71 KHz e. 57 KHz
Mathematics
Solve the equation.-8b + 3 + 6b = -3b + 8
A. -3 B. 5 C. -8 D. 8
Mathematics