Write a numerical expression for the phrase and simplify it.The product of -6 and the sum of 9 and -3
A. -6[9 + (-3)]; -36
B. -6 + (9)(-3); -33
C. (-6)(9) + (-3); -57
D. (-6)(-3) + 9; 27
Answer: A
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Find the derivative of y with respect to x, t, or ?, as appropriate.y = x4ln x - 
x3
A. x4ln x - x2 + 4x3 B. 4x3 - x2 C. x3 - x2 + 4x3ln x D. 5x3 - x2
Solve the problem.Among first-year students enrolled in a two-year program at a trade school, the following was determined to be true: 74% would successfully complete the year and go on to the second year; 20% would repeat the year; and 6% would drop out of the program. Among the second-year students, 75% would successfully complete the year and graduate; 15% would repeat the year; and 10% would drop out of the program. What is the expected number of years that the average first-year student will spend in the program? Round your answer to the nearest hundredth.
A. 2.49 years B. 2.34 years C. 2.56 years D. 2.41 years
Solve. When necessary, round answers to two decimal places.A recipe calls for 37 fluid ounces of water. How many cups is this?
A. 18.5 c B. 4.63 c C. 74 c D. 9.25 c
Name the property illustrated by the statement.2 ? 3 = 3 ? 2
A. associative property of multiplication B. identity element for multiplication C. commutative property of multiplication D. distributive property