Solve the system of equations by the addition method.

A. (0, 7)
B. (7, 0)
C. (0, -7)
D. (-7, 0)


Answer: D

Mathematics

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and intersect at point E. If m and m, find x.

What will be an ideal response?

Mathematics

Solve.When an object is dropped to the ground from a height of h meters, the time it takes for the object to reach the ground is given by the equation t = , where t is measured in seconds. If an object falls 44.1 meters before it hits the ground, find the time it took for the object to fall.

A. 9 seconds B. 3 seconds C. 4 seconds D. 6 seconds

Mathematics

Find the value of . 

A. 3 B. 5 C. 6 D. 2 E. 4

Mathematics

Write the following phrase as an algebraic expression and simplify if possible. Let x represent the unknown number.Three times a number, increased by thirteen

A. 3 + 13x B. 3x - 13 C. 3x + 39 D. 3x + 13

Mathematics