Solve the equation.4(x + 5) = 5(x - 5)
A. {45}
B. {-5}
C. {-45}
D. {5}
Answer: A
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Determine if the graph of the function is concave up or concave down.f(x) = -3x2 - 3x - 9
A. Concave down B. Concave up
Find the equation of the graphed line.
A. y = - 
x + 2
B. y = -6x + 2
C. y = - 3x + 6
D. y = 6x + 2
Solve the problem.The territorial area of an animal is defined to be its defended region, or exclusive region. For example, a rhinoceros has a certain region over which it is ruler. The area T of that region, in acres, can be approximated by the function T = W1.19,where W is the weight of the animal, in tons. Find the approximate territorial area of a rhinoceros who weights 4.1 tons. Round to the nearest hundredth.
A. 5.36 acres B. 0.49 acres C. 0.19 acres D. 2.04 acres
Use U = universal set = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}, A = {1, 2, 3, 5, 8}, B = {2, 3, 5, 7}, and C = {1, 4, 9} to find the set.(B ? C) ? A
A. {1, 2, 3, 5} B. {1, 2, 3} C. {1, 2, 3, 4, 5, 7, 9} D. { }