Write a numerical expression for the phrase and simplify it.The product of -8 and the sum of 5 and -9
A. -8[5 + (-9)]; 32
B. -8 + (5)(-9); -53
C. (-8)(5) + (-9); -49
D. (-8)(-9) + 5; 77
Answer: A
Mathematics
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Solve.
= 
A. 
B. 6, 7
C. 1
D. 
, 
Mathematics
Multiply mentally.(4x2 + 3)(x - 6)
A. 4x2 - 21x - 18 B. 4x3 - 21x - 18 C. 4x3 - 24x2 + 3x - 18 D. 4x2 - 22x - 18
Mathematics
Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
- 
Mathematics
Use the reference angle to find the exact value of the expression. Do not use a calculator.sin 
A. - 
B. - 
C. -1
D. 
Mathematics