Solve the problem using Snell's Law: 
= 
.A light beam in air travels at 2.99 × 108 meters per second. If its angle of incidence to a second medium is 85° and its angle of refraction in the second medium is 75°, what is its speed in the second medium (to two decimal places)?
A. 3.08 × 108 mps
B. 2.89 × 108 mps
C. 2.90 × 108 mps
D. 2.98 × 108 mps
Answer: C
Mathematics
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Solve the problem.The mathematical model 
represents the cost in dollars a company has in manufacturing x items during a month. Based on this model, how many items were produced if expenses were $440,000 in one month?
A. 134 items B. 600 items C. 733 items D. 466 items
Mathematics
Determine whether the given number is a solution of the equation. 
+ x = 3; x = 
A. No B. Yes
Mathematics
Solve using the quadratic formula.8x2 + 7x = -2
A. 
B. 
C. 
D. 
Mathematics
Find the x-intercept and y-intercept for the line x = -3.
What will be an ideal response?
Mathematics