Use a proportion to solve the problem.It takes 60 oz of grass seed to seed 3300 ft2 of lawn. At this rate, about how much would be needed for  of lawn? Round to the nearest whole number.

A. 106 oz
B. 107 oz
C. 330,000 oz
D. 109 oz


Answer: D

Mathematics

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Solve the system. x- y+ 3z= 14x+ z= 0 x+ 5y+ z= -5

A. {(0, -1, 0)} B. ? C. {(0, 0, -1)} D. {(0, -1, 1)}

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Find the exact real solutions of the equation , if they exist. ?

A.  and
B.  and
C.  and
D.  and
E.  and

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Determine which value(s), if any, must be excluded from the domain of the variable in the expression.

A. x = 5, x = 0 B. x = 0 C. x = 5, x = -5 D. x = -5

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Simplify the trigonometric expression by following the indicated direction.Rewrite in terms of sine and cosine: tan x ? cot x

Fill in the blank(s) with the appropriate word(s).

Mathematics