Find the intervals on which the function is continuous.y = 
A. discontinuous only when x = -16 or x = 16
B. discontinuous only when x = 16
C. discontinuous only when x = -4
D. discontinuous only when x = -4 or x = 4
Answer: D
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Which property does the expression represent?6 × (3 × 7) = (6 × 3) × 7
A. Commutative Property of Multiplication B. Associative Property of Multiplication C. Identity of Multiplication D. Identity of Addition
Find the expected value.Mr. Cameron is sponsoring an summer concert. He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain. The weather bureau predicts the chance of rain is 0.34 for the day of the concert. An insurance company is willing to insure the concert for $150,000 against rain for a premium of $30,000. If he buys this policy, what are his expected earnings from the concert?
A. $180,000 B. $300,000 C. $270,000 D. $239,400
Consider the feasible set (FS) below of a certain linear programming problem.
What is the maximum value of the objective function 6x + 3y?
A. 20 B. 12 C. 24 D. -6 E. none of these
Simplify the algebraic expression.5.2x - 1.9 - 3.9x + 4 + 2.7x
A. 4x - 2.1 B. 11.8x + 2.1 C. 4x + 5.9 D. 4x + 2.1