Provide an appropriate response.
The sum of two numbers is 30. Their difference is 12. What is the larger number?

A. 9
B. 6
C. 18
D. 21

Answer: D

Mathematics

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Estimate the error in the quadratic approximation of the given function at the origin over the given region.  

A. |E(x, y)| ? 0.0486 B. |E(x, y)| ? 0.0364 C. |E(x, y)| ? 0.1458 D. |E(x, y)| ? 0.0729

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Mathematics

Graph the function.A rotating beacon is 10 m from a straight wall. The length L of the light beam is given by . Sketch the graph of L as a function of t for . Show the portion of the graph which demonstrates meaningful values. Label significant points on the horizontal axis.

A.

B.

C.

D.

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Mathematics

Write the English phrase as an algebraic expression. Let x represent the number. Simplify the expression, if possible.Three times a number decreased by 7

A.
B. 3x - 7
C. 3 - 7x
D. 3x + 7

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Mathematics

Factor out the common binomial factor as the GCF.x(3x - 2) - 5(3x - 2)

A. -5x(3x - 2) B. (3x - 5)(x - 2) C. (3x - 2)(x + 5) D. (3x - 2)(x - 5)

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Mathematics