Add or subtract. Simplify by combining like radical terms, if possible.-19 - 11

A. 29
B. -30
C. -8
D. 9


Answer: B

Mathematics

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Solve the problem.Refer to the given preference schedule. If the plurality method is used to determine the winner and C drops out, is Fairness Criterion 4 satisfied?

A. Yes B. No

Mathematics

Find the general solution of the differential equation. Use C, C1, C2, . . . to denote arbitrary constants. If used, do not simplify hyperbolic functions.y'(t) = 7 + e-3t

A. y = 7 -  + C
B. y = 7t -  + C
C. y = 7t + e-3t + C
D. y = -3e-3t + C

Mathematics

Solve the problem.For a remodeling project, the building contractors designed a chute extending from a third-floor balcony to a dumpster located in the hotel parking lot. The chute has a rise of 35 feet for every 70 feet in horizontal distance. Find the grade of the chute. Round to the nearest whole percent.

A. 20% B. 50% C. 55% D. 0.5%

Mathematics

Factor.9y2 + 18y + 8

A. (3y - 2)(3y - 4) B. 9y2 + 18y + 8 C. (3y + 2)(3y + 4) D. (9y + 2)(y + 4)

Mathematics