Multiply.(15 + x)2
A. x + 225
B. x2 + 30x + 225
C. 225x2 + 30x + 225
D. x2 + 225
Answer: B
Mathematics
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Factor by grouping.15x2 - 9x - 10x + 6
A. (15x + 2)(x + 3) B. (15x - 2)(x - 3) C. (3x + 2)(5x + 3) D. (3x - 2)(5x - 3)
Mathematics
Determine whether the given value is a solution of the inequality.-11n - 10 ? -12n - 15; -4
A. A solution B. Not a solution
Mathematics
Solve the system of equations using substitution. Note that the system may be inconsistent or consistent with dependent equations.
A. 
B. 
C. All ordered pairs along 
= 5
D. No solution
Mathematics
Solve the problem.Let angle POQ be designated ?. Angles PQR and VRQ are right angles. If ? = 45°, find the exact length of VR. 
A. 0
B. 1
C. 
D. 
Mathematics