Solve the problem. Where appropriate, round to the nearest tenth of a percent.All 31 of the students in a mathematics class attended class on Monday. On Tuesday only 22 students attended. What was the percent decrease?
A. 71%
B. 29%
C. 40.9%
D. 59.1%
Answer: B
Mathematics
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Answer the question with an algebraic expression.The first side of a triangle is y feet long. The second side is 4 feet longer than the first side. The third side is twice as long as the second side. What is the perimeter of the triangle in inches?
A. 4y + 4 in B. 4y + 12 in C. 48y + 144 in D. 48y + 48 in E. none of these
Mathematics
The point P(x, y) on the unit circle that corresponds to a real number t is given. Find the values of the indicated trigonometric function at t.
?Find cos t.
A. 
B. - 
C. 
D. - 
Mathematics
Subtract.5.908 - (-0.42)
A. 2.481 B. 5.488 C. 6.328 D. 6.428
Mathematics
Simplify the rational expression.
A. 
B. - 
C. 
D. 
Mathematics