Write the following as a sum using powers of 10 to show place value.472.8002
A. 4 ? 102 + 7 ? 101 + 2 ? 100 + 8 ? 10-1 + 0 ? 10-2 + 0 ? 10-3 + 2 ? 10-4
B. 4 ? 102 + 7 ? 101 + 2 ? 100 + 8 ? 100 + 0 ? 10-1 + 0 ? 10-2 + 2 ? 10-3
C. 4 ? 103 + 7 ? 102 + 2 ? 101 + 8 ? 100 + 0 ? 10-1 + 0 ? 10-2 + 2 ? 10-3
D. 4 ? 103 + 7 ? 102 + 2 ? 101 + 8 ? 10-1 + 0 ? 10-2 + 0 ? 10-3 + 2 ? 10-4
Answer: A
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Provide an appropriate response. Solve the following using a constant of variation:How much fertilizer does 3,246 square feet of lawn need if the fertilizer treats 1,500 square feet per gallon? Express to nearest tenth.
A. 0.5 gal B. 1.7 gal C. 5.7 gal D. 2.2 gal
Solve.A farmer's silo is the shape of a cylinder with a hemisphere as the roof. If the height of the silo is 94 feet and the radius of the hemisphere is r feet, express the volume of the silo as a function of r.
A. V(r) = ?(94 - r)r3 + 
?r2
B. V(r) = ?(94 - r) + 
?r2
C. V(r) = ?(94 - r)r2 + 
?r3
D. V(r) = 94?r2 + 
?r3
Evaluate the function.Find f(1.6) when f(x) = 8x + 3.4.
A. 13.14 B. 16.2 C. -9.4 D. 9.4
Use the properties of logarithms to rewrite the logarithm if possible. Assume that all variables represent positive real numbers.logn 
A. 
logn 4 + 
logn x - 
logn z
B. logn 4 + 2 logn x - 9 logn z
C. 
logn 4 - 
logn x - 
logn z
D. 
logn 4 + 
logn x + 
logn z