Find the exact function value if it exists.cos 240°
A. 
B. - 
C. - 
D. 
Answer: B
Mathematics
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Find the formula for df-1/dx.f(x) = x5/7
A. x7/5
B. 
x-2/7
C. x-2/5
D. 
x2/5
Mathematics
Add by using the number line.-5 + (-2)
A. 6 B. -3 C. -6 D. -7
Mathematics
Convert the units using unit fractions.360 min = 
hr
A. 144 B. 3 C. 6 D. 15
Mathematics
Find a slope-intercept form equation for the line.Through (5, 3), with slope - 
A. y = 
x + 
B. y = - 
x + 
C. y = 
x - 
D. y = - 
x + 
Mathematics