Remove the parentheses and simplify, if possible.(7y2 - 6y) + (2y - 5) + (4y2 + 2)
A. 11y2 - 8y - 3
B. 11y2 - 4y - 3
C. 11y2 - 4y + 7
D. 11y2 - 8y + 7
Answer: B
Mathematics
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Find the indicated probability. Round your answer to 6 decimal places when necessary.When a pair of dice is rolled there are 36 different possible outcomes: 1-1, 1-2, ... 6-6. If a pair of dice is rolled 4 times, what is the probability of getting a sum of 5 every time?
A. 
B. 
C. 
D. 
Mathematics
Solve the system of equations. x -y + 5z = -45x+ z = 0 x + 4y +z = 16
A. (0, 4, -4) B. (4, 0, 0) C. (0, 0, 4) D. (0, 4, 0)
Mathematics
Decide whether or not the ordered pair is a solution of the system.(-4, -1)4x + y = -153x + 4y = -8
A. Yes B. No
Mathematics
Express as a single logarithm.logcq + logcr
A. logcq ? logcr
B. logc(qr)
C. logc
D. logcqr
Mathematics