Write a numerical expression for the phrase and simplify it.Three-eighths of the sum of -7 and -9.
A. 
[(-7) + (-9)]; -6
B. 
[(-7) + (-9)]; -12
C. (3 + 8)(-7) + (-9); -86
D. 
+ [(-7) + (-9)]; 1
Answer: A
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Provide an appropriate response.If loga x = loga y, then _______ .
A. a = x = y B. a = 10 C. x = y D. No solving or simplification can be made (not enough information).
Use identities to simplify the expression.
- 
A. sec x B. tan2 x sec x C. csc x D. sec x tan x
Find the least common denominator.
, 
A. m(m - 4)2(m - 5) B. m(m + 1)(m - 5) C. m(m - 4)(m - 5) D. (m + 1)2
Indicate whether the statement is a simple or a compound statement. If it is a compound statement, indicate whether it is a negation, conjunction, disjunction, conditional, or biconditional by using both the word and its appropriate symbol.The animal is a mammal if and only if it nurses its young.
A. Compound; negation; ~ B. Compound; biconditional; ? C. Compound; conditional; ? D. Compound; disjunction; ?