Add or subtract. Write the answer in lowest terms.
+ 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Factor by grouping.6x2 - 8xy - 15xy + 20y2
A. (6x - 5y)(x - 4y) B. (2x - 5y)(3x - 4y) C. (2x + 5y)(3x - 4y) D. (2x - 5)(3x - 4)
Mathematics
Solve the problem.Which of the lines in the picture are lines of symmetry of the given figure?
A. l and n B. l, m, and n C. m D. None
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
Find a quadratic function that best fits the data. Give answers to the nearest hundredth.
A. y = 0.20x2 - 0.33x + 3.52 B. y = -0.13x2 - 0.67x + 6.86 C. y = 0.20x2 + 0.33x + 3.52 D. y = 0.21 - 1.28x + 6.44
Mathematics