Simplify. Assume that each variable is nonnegative.(
+ 3)2
A. 5x + 9
+ 7
B. 5x + 9
+ 9
C. 5x + 6
+ 9
D. 5x + 6
+ 7
Answer: D
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Replace the polar equation with an equivalent Cartesian equation.r2 = 40r cos ? - 6r sin ? - 9
A. (x - 20)2 + (y + 3)2 = 400 B. (x + 40)2 + (y - 6)2 = 9 C. 40x - 6y = 9 D. (x - 20)2 + (y + 3)2 = 9
Solve.Given that loga2 = 0.693, and loga5 = 1.609, find loga
.
A. 0.896 B. 0.916 C. -2.303 D. -0.896
Use the row transformation described to transform the matrix.
A. 
B. 
C. 
D. 
Solve the problem.You are varnishing the background for a rectangular mural. The length of the mural is 4
meters and the width of the mural is 5 meters. If one can of varnish will cover 10 m2 of surface, how many cans of varnish must be purchased to cover the entire background? (Use A = lw, where A is the area, l is the length, and w is the width.)
A. 23 cans of varnish B. 9 cans of varnish C. 3 cans of varnish D. 5 cans of varnish