Write the matrix equation as a system of linear equations without matrices.
= 
A. 7x + 3y = 11
13x + 4y = 19
B. 7x + 3y = -11
4x + 13y = -19
C. 7x + 3y = 11
4x + 13y = 19
D. 3x + 7y = 11
4x + 13y = 19
Answer: C
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The rise of a line can be found by multiplying the run by the slope.
Answer the following statement true (T) or false (F)
Solve the problem. Round to the nearest tenth, if necessary.The diagram below shows a rope connecting the top of a pole to the ground. How tall is the pole?
A. 8.3 yd B. 27.5 yd C. 137.5 yd D. 16.6 yd
Find the product.(12p + 13)(12p - 13)
A. 144p2 - 312p - 169 B. 144p2 + 312p - 169 C. 144p2 - 169 D. p2 - 169
Solve.A vendor has learned that, by pricing hot dogs at $1.00, sales will reach 122 hot dogs per day. Raising the price to $1.50 will cause the sales to fall to 96 hot dogs per day. Let y be the number of hot dogs the vendor sells at x dollars each. Write a linear equation that relates the number of hot dogs sold per day, y, to the price x.
A. y = -52x - 174
B. y = 52x + 70
C. y = - 
x + 
D. y = -52x + 174