Multiply the polynomials using the special product formulas. Express the answer as a single polynomial in standard form.(4x + 6)(4x - 6)
A. 16x2 - 48x - 36
B. 16x2 - 36
C. 4x2 - 48x - 36
D. 16x2 + 48x - 36
Answer: B
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Solve the problem.The amount of a medication (in mg) in the bloodstream t hours after the medication is taken is given by M(t). Estimate the values of M'(1) and M'(6), rounding to the nearest whole number. Include units on your answers and interpret the physical meaning of these values.
A. M'(1) = -140, M'(6) = -3; The amount of medication in the bloodstream is decreasing at a rate of 140 mg/hr at t = 1 hour, and is decreasing at a rate of 3 mg/hr at t = 6 hours. B. M'(1) = -54, M'(6) = -8; The amount of medication in the bloodstream is decreasing at a rate of 54 mg/hr at t = 1 hour, and is decreasing at a rate of 8 mg/hr at t = 6 hours. C. M'(1) = -28, M'(6) = -2; The amount of medication in the bloodstream is decreasing at a rate of 28 mg/hr at t = 1 hour, and is decreasing at a rate of 2 mg/hr at t = 6 hours. D. M'(1) = -92, M'(6) = -6; The amount of medication in the bloodstream is decreasing at a rate of 92 mg/hr at t = 1 hour, and is decreasing at a rate of 6 mg/hr at t = 6 hours.
Use the inverse trig functions to express the angle in terms of the indicated unknown side. 
Express angle A in terms of b. Use one of the inverse trig functions tan-1, sin-1, or cos-1.
A. A = cos-1 
B. A = tan-1 
C. A = sin-1 
D. A = sin-1 
Rearrange the numbers using any order and grouping so that you can perform the addition as quickly as possible.20 + 25 + 80 + 40 + 75 + 60
A. 225 B. 300 C. 320 D. 200
Graph the function. Describe its position relative to the graph of the indicated basic function.f(x) = 4x - 4; relative to f(x) = 4x
A. Moved up 4 unit(s)
B. Moved up 4 unit(s)
C. Moved down 4 unit(s)
D. Moved down 4 unit(s)