Use the multiplication principle of equality to eliminate the fractions or decimals; then solve.1.3x + 3.7 = 0.5x + 3.06
A. -0.8
B. -0.81
C. -0.808
D. 1.25
Answer: A
Mathematics
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For an arc length s, area of sector A, and a central angle ? of a circle of radius r, find the indicated quantity.r = 5 cm, s = 30 cm, find ? in radian measure
A. 6 B. 150? C. 150 D. 6?
Mathematics
Solve. Write the answer as a mixed number in simplest form.A nail 4
inches long is driven into a board 1
inches thick. How much of the nail protrudes from the other side of the board?
A. 5
in.
B. 2
in.
C. 
in.
D. 
in.
Mathematics
Simplify the expression. First use the distributive property to remove any parentheses.2(4n - 5)
A. 8n + 10 B. 8n - 10 C. 6n - 7 D. 8n - 5
Mathematics
Evaluate the polynomial.-2x2 - y2 + xy for x = -2 and y = 3
A. 11 B. -5 C. -11 D. -23
Mathematics