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Evaluate the expression.cos 360° - 8 sin 90°
A. 0 B. -8 C. 1 D. -7
Tell whether the expression is a monomial. If it is, name the variable(s) and coefficient, and give the degree of the monomial.3x3y4
A. Monomial; variables x, y; coefficient 3; degree 3 B. Monomial; variables x, y; coefficient 3; degree 4 C. Monomial; variables x, y; coefficient 3; degree 7 D. Not a monomial
Find the indicated composite for the pair of functions.f(x) = 3x + 9; g(x) = 3x - 1Find (f?g)(x).
A. 9x + 8 B. 9x + 12 C. 9x + 6 D. 9x + 26
Solve using matrices.A $166,000 trust is to be invested in bonds paying 7%, CDs paying 6%, and mortgages paying 9%. The sum of the bond and CD investment must equal the mortgage investment. To earn an $12,840 annual income from the investments, how much should the bank invest in bonds?
A. $37,000 B. $44,000 C. $83,000 D. $39,000