?Consider the matrices , ,

data-wiris-created="true" varid="variable_id_field" variablename="impvar_9dee762a572d4efa80d028817" />. Find scalars a and b such that .



A. ?
B. ?
C. ?
D. ?
E. ?

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Answer: E

Mathematics

Rewrite the trigonometric expression as an algebraic expression involving the variable u. Assume that  and that the value of the "inner" inverse trigonometric expression represents an angle ? such that cot (cos-1 u)

A.
B.
C.
D.

Use the quadratic formula to solve the equation.x2 - 28x + 196 = 0

A. {-14, 14} B. {-14} C. {14} D. {-14 - i, -14 + i}

Solve the problem.Marcus earned $8600 during his summer vacation. He invested part of the money at  and the rest at  If he received a total of $683 in interest at the end of the year, how much was invested at 

A. $2700 B. $1228 C. $5900 D. $4300

Tell whether the number is a solution of the given equation or inequality.9;  3m - 5 > 8

A. Yes B. No