Find the square root. Express the answer as a whole number or as a square root. Do not use a calculator.
A. 42
B. 16
C. 30
D. 6
Answer: C
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Find the quadratic approximation of f at x = 0.f(x) = ln(1 + sin 8x)
A. Q(x) = 8x + 32x2 B. Q(x) = 8x - 32x2 C. Q(x) = 1 + 8x + 32x2 D. Q(x) = 1 - 8x + 32x2
Write the vertex form of a parabola that satisfies the conditions given. Then write the equation in the form
Vertex (3, 4) and a = 5
A. y = 5(x - 4)2 + 3; y = 5x2 - 30x + 49 B. y = 5(x - 4)2 + 3; y = 5x2 + 49x - 30 C. y = 5(x - 3)2 + 4; y = 5x2 + 5x + 49 D. y = 5(x - 3)2 + 4; y = 5x2 - 30x + 49
Solve the system by graphing. If the system is inconsistent and has no solution, state this. If the system is dependent, write the form of the solution for any real number x. 4x + 5y = 19 4x + 2y = 10
A. (3, 1) B. (4, -6) C. Inconsistent, ? D. (1, 3)
Find either a linear or an exponential function that models the data in the table.
A. f(x) = 21x + 7
B. f(x) = 
x + 7
C. f(x) = 4(7)x
D. f(x) = 7(4)x