Solve the problem.How many liters (L) of a 10% alcohol solution must be mixed with 60 L of a 70% solution to get a 40% solution?
A. 12 L
B. 60 L
C. 6 L
D. 120 L
Answer: B
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Find the average value of the function f over the given region.f(x, y) = ex2 over the region bounded by 
, 
, 
, and 
.
A. 2e - 1
B. e - 1
C. 
D. 
Given the measure of one acute angle, find the measure of the other acute angle. Triangle is not drawn to scale.?B = 55.53°
A. ?A = 35.47° B. ?C = 90° C. ?A = 34.47° D. ?A = 34.57°
Two sides and an angle are given. Determine whether the given information results in one triangle, two triangles, or no triangle at all. Solve any triangle(s) that results.B = 11°, b = 17.7, a = 30.92
A. one triangle A = 19°, C = 150°, c = 46.4 B. two triangles A1 = 19°, C1 = 150°, c1 = 46.4; A2 = 161°, C2 = 8°, c2 = 12.9 C. one triangle A = 161°, C = 8°, c = 12.9 D. no triangle
Solve the system of nonlinear equations.x2 + y2 = 89x2 - y2 = -39
A. (5, -8), (5, 8) B. (-5, -8), (-8, -5) C. (5, 8), (-5, 8), (5, -8), (-5, -8) D. (5, 8), (8, 5), (-5, -8), (-8, -5)