Solve the problem.A beam of light is partly reflected, and the remainder of the beam passes straight through the surface. Find the angle (angle O) between the surface and the part that passes through.
A. 50°
B. 85°
C. 40°
D. 130°
Answer: D
Mathematics
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Simplify the expression.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics
Perform the indicated operations. Write the result in the form a + bj.
A. 
(10 - j)
B. 
(j - 10)
C. 
(10 + j)
D. 
(j - 10)
Mathematics
Find the product.58.5% of 2800
A. 1182 B. 1638 C. 1162 D. 1400
Mathematics
Find the determinant.
A. 
B. - 
C. 0
D. 
Mathematics