Find the function value.f(x) = -?x - 5?, find f(4)
A. --9
B. 9
C. 1
D. -1
Answer: D
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Solve the problem.A glass has circular cross sections that taper (linearly) from a radius of 6 cm at the top of the glass to a radius of 5 cm at the bottom. The glass is 14 cm high and full of lemonade. How much work is required to drink all the lemonade through a straw if your mouth is 7 cm above the top of the glass? Assume the density of lemonade equals the density of water. Round to two decimal places when appropriate.
A. 0.57 J B. 1.78 J C. 2.84 J D. 42.24 J
Estimate the sum or difference by rounding each number to the nearest hundred.
A. 100 B. 138 C. 400 D. 200
Divide the polynomials using polynomial long division.
A. -4x2 + 4x - 1 B. x2 + 4x - 1 C. x2 - 4x + 1 D. -4x2 - 1
State whether the function is linear or quadratic.f(x) = 7 + 8x2
A. Linear B. Quadratic