Solve.For a party, Mike is making a eight-layer torte, which consists of eight 8-inch-diameter cake layers with a cream topping on each. He knows that one recipe of cream topping will cover 50 square inches of cake. How many batches of the topping must he make to complete his torte? (Use ? = 3.14 as an approximate value.)
A. 32 batches
B. 12 batches
C. 11 batches
D. 9 batches
Answer: D
Mathematics
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Find the absolute maxima and minima of the function on the given domain.
on the closed triangular region bounded by the lines 
and 
A. Absolute maximum: 136 at 
absolute minimum: 90 at 
B. Absolute maximum: 90 at 
absolute minimum: 40 at 
C. Absolute maximum: 136 at 
absolute minimum: 0 at 
D. Absolute maximum: 90 at 
absolute minimum: 0 at 
Mathematics
Factor by grouping.ax + bx - ay - by
A. (x + y)(a - b) B. (x + y)(a + b) C. (x - y)(a - b) D. (x - y)(a + b)
Mathematics
Solve the logarithmic equation.log4 (x + 3) = -2
A. 13
B. - 
C. 
D. ?
Mathematics
Express the following logarithm as specified.
in terms of ln 2 and ln 3
A. 
B. 
C. 1
D. 
Mathematics