Solve the system.
A. x = 3, y = -2, z = 5
B. x = -1, y = 2, z = -3
C. x = 0, y = 4, z = 2
D. x = 1, y = 2, z = 3
Answer: D
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Use power series operations to find the Taylor series at x = 0 for the given function.f(x) = cos2(10x)
A. +
B. +
C. +
D. +
Rationalize the denominator. Assume all variables have nonzero values.
A. 3
B.
C.
D. 3y
Simplify the exponential expression.(34)2
A. 729 B. 24 C. 162 D. 6561
Solve the problem.A company is introducing a new soft drink and is planning to have 48 advertisements distributed among TV ads, radio ads, and newspaper ads. If the cost of TV ads is each, the cost of radio ads is
each, and the cost of newspaper ads is
each, how can the ads be distributed among the three types if the company has
/> to spend for advertising? (Let x denote the number of TV ads, y the number of radio ads, and z the number of newspaper ads. Let z be the parameter.) A. x = 39 - z, y = 9, 0 ? z ? 39 B. x = z - 39, y = 9, 0 ? z ? 39 C. x = 9, y = 39 - z, 0 ? z ? 39 D. x = 9, y = z - 39, 0 ? z ? 39