Factor completely.
A. 
B. 
C. 
D. prime
E. none of these
Answer: A
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Decide whether the statement translates into an expression or an equation.The sum of a number and 7 is 11.
A. Expression B. Equation
Answer the following statement(s) true (T) or false (F)
Research indicates that placing manipulatives in front of students automatically causes immediate gains in student learning.
Solve by factoring and using the principle of zero products.x2 - x = 56
A. -7, -8 B. 7, 8 C. -7, 8 D. 1, 56
The loudness L(x), measured in decibels, of a sound of intensity x, measured in watts per square meter, is defined as 
watt per square meter is the least intense sound that a human ear can detect. Determine the loudness, in decibels, of the sound.A particular Boeing 747 jetliner produces noise at a loudness level of 113 decibels. Find the intensity level (round to the nearest hundredth) in watt per square meter for this noise.
A. 0.20 watt per square meter B. 0.80 watt per square meter C. 0.40 watt per square meter D. 0.10 watt per square meter