Combine like terms whenever possible. Write the result with descending powers.0.7y -0 .9y2

A. 0.7y -0 .9y2
B. -0.9y2 +0 .7y
C. 7y2 - 9y
D. -2y3

Answer: B

Mathematics

Solve the problem.Find the equation for the tangent plane to the surface at the point

A. z = 0 B. x + y + z = 0 C. x + y = 0 D. x - y = 0

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Mathematics

Find the area of the figure. Use 3.14 for ?. Round to hundredths if necessary.Rectangle topped by a semicircle

A. 32.56 sq. ft B. 21.57 sq. ft C. 45.12 sq. ft D. 26.28 sq. ft

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Mathematics

Solve the inequality. Write the solution set in interval notation.x2 + 4x - 12 < 0

A. (-2, 6) B. (-?, -2) ? (6, ?) C. (-6, 2) D. (-?, -6) ? (2, ?)

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Mathematics

Find the volume.

A. 56 ft³
B. 100 ft³
C. 17 ft³
D. 112 ft³

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Mathematics