Solve the problem. Snell's Law states that 
Use this law to find the requested value. If 
find 
Round your answer to the nearest degree.
A. ?1 = 53°
B. ?1 = 51°
C. ?1 = 48°
D. ?1 = 50°
Answer: D
Mathematics
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Answer the question or complete the sentence to make a true statement.Under what condition will the sum of a positive number and a negative number be negative?
What will be an ideal response?
Mathematics
Perform the indicated operation.
÷ 
A. 3
B. 
C. 
D. -3
Mathematics
Find n(A) for the set A.A = {700, 701, 702, . . ., 7000}
A. n(A) = 7000 B. n(A) = 6301 C. n(A) = 6300 D. n(A) = 4
Mathematics
Add, subtract, or multiply, as indicated. Express your answer as a single polynomial in standard form.(7x2 + 8x - 18) - (3x2 - 4x - 11)
A. 4x2 + 11x - 29 B. 4x2 + 12x - 29 C. 4x2 + 12x + 7 D. 4x2 + 12x - 7
Mathematics