Find the unknown number in the proportion. Write your answer as a whole number or a mixed number if possible. = 

A. 1
B. 81
C. 4
D. 2


Answer: A

Mathematics

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Solve the problem.A rectangular swimming pool is being constructed, 18 feet long and 100 feet wide. The depth of the pool is measured at 3-foot intervals across the length of the pool. Estimate the volume of water in the pool using Simpson's Rule.

A. 12,300 ft3 B. 10,900 ft3 C. 8,200 ft3 D. 14,400 ft3

Mathematics

Find the slope of the line.

A. -6 B. -1 C. 6 D. 1

Mathematics

Use the vertex and the direction in which the parabola opens to determine the relation's domain and range.x = -(y - 8)2 - 1

A. Domain: (-?, -1) Range: (-?, ?) B. Domain: (-?, ?) Range: (-?, -1] C. Domain: (-?, ?) Range: (-?, ?) D. Domain: (-?, -1] Range: (-?, ?)

Mathematics

Solve the triangle.A = 53°, B = 65°, a = 7

A. C = 62°, b ? 7.9, c ? 6.8 B. C = 28°, b ? 6.2, c ? 6.8 C. C = 62°, b ? 6.2, c ? 6.8 D. C = 62°, b ? 7.9, c ? 7.7

Mathematics