Convert the angle in radians to degrees.- 

A. -1°
B. -30°
C. 1°
D. -30?°


Answer: B

Mathematics

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Provide an appropriate response.Solve the following system of equations graphically: 2x - y = -3   x - y = 1

Fill in the blank(s) with the appropriate word(s).

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Solve the equation graphically, numerically, or symbolically. If appropriate, round the solution to hundredths. ?b - 4? - 9 = -2

A. No solution B. 11, -3 C. 11 D. -11, 3

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Use the vertical line test to determine whether the graph represents a function.

A. function B. not a function

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Solve the problem. Round your answer to the nearest tenth, if necessary.On a biology test, a student got 25 questions correct but did not pass. On a second attempt, the student got 30 questions correct. What was the percent of increase in correct answers?

A. 80% B. 16.7% C. 5% D. 20%

Mathematics