Simplify.-8 + 3 - 14 + (-18)
A. -9
B. -15
C. -1
D. -37
Answer: D
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Provide an appropriate response. Explain why the shortcut for multiplication of the sum and difference of the same two terms works. Create an example to demonstrate if necessary.
What will be an ideal response?
Find the GCF.56x3 and 28x9
A. 28x3 B. 56x3 C. 14x6 D. 42x3
Solve the problem.Snell's Law states that 
= 
, where v1, v2are the speeds at which light travels through two different mediums, and ?1, ?2 are the angles of incidence and refraction respectively. Find the angle of refraction if 
and the angle of incidence is 14°. Give your answer in degrees to the nearest hundredth.
A. 5.34° B. 10.72° C. 18.33° D. 3.56°
Simplify the expression. Write your answer without negative exponents. Whenever an exponent is negative or zero, assume that the base is not zero.
A. 
B. - 
C. -x2
D. x2