Find the LCD for the fractions in the list.
, 
, 
A. r(r + 4)2
B. 5r(r + 4)2
C. 5(r + 4)
D. 5(r + 4)2
Answer: B
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State the property that is illustrated.3(6 ? 5) = (3 ? 6)5
A. commutative property of multiplication over addition B. associative property of multiplication C. identity property of multiplication D. distributive property of multiplication
Solve the problem. Round your answer to the nearest tenth, if necessary.Two pipes together can fill a large tank in 10 hr. One of the pipes, used alone, takes 15 hr longer than the other to fill the tank. How long would each pipe take to fill the tank alone?
A. 25 hr; 40 hr B. 15 hr; 30 hr C. 10 hr; 25 hr D. 12.5 hr; 27.5 hr
Solve the system.
A. (-4, 4, 1) B. (-4, 1, 4) C. (4, 1, -4) D. ?
Use point-by-point plotting to sketch the graph of the equation.y = x + 3
A. 
B. 
C. 
D. 