Find the quantity indicated.Suppose that y is directly proportional to x. When x = 18, then  Find y when 

A. 54
B. 42
C. 90
D. 40


Answer: D

Mathematics

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Find an upper bound for the magnitude |E| of the error in the approximation f(x, y) ? L(x, y) at the given point over the given region R. at ; R: |x - 1| ? 0.1, |y - 1| ? 0.1

A. |E| ? 0.0176 B. |E| ? 0.0139 C. |E| ? 0.0113 D. |E| ? 0.0093

Mathematics

Solve.m - 1 ? -5

A. m ? 4 B. m ? -4 C. m ? -6 D. m ? 6

Mathematics

Solve the system by graphing. If the system is inconsistent and has no solution, state this. If the system is dependent, write the form of the solution for any real number x. 4x + 5y = 19 4x + 2y = 10

A. (3, 1) B. (4, -6) C. Inconsistent, ? D. (1, 3)

Mathematics

If ?MAT is isosceles and AM?TM , the vertex angle is ________________

Fill in the blank(s) with the appropriate word(s).

Mathematics