A board foot is the volume of a piece of wood 1 foot by 1 foot by 1 inch. A deck is designed as shown below. One inch by six inch boards are to be used for the surface of the deck. How many board feet are required for this part of the job?
What will be an ideal response?
109 board feet
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Write the number in scientific notation.4,700,000
A. 4.7 x 10-6 B. 4.7 x 106 C. 4.7 x 10-7 D. 4.7 x 107
Find all the first order partial derivatives for the following function.f(x, y) = sin2 (5xy2 - y)
A. 
= 2sin (5xy2 - y) cos (5xy2 - y); 
= (20x - 2) sin (5xy2 - y) cos (5xy2 - y)
B. 
= 10y2sin (5xy2 - y) cos (5xy2 - y); 
= (20xy - 2) sin (5xy2 - y) cos (5xy2 - y)
C. 
= 2sin (5xy2 - y) cos (5xy2 - y); 
= 2sin(5xy2 - y) cos(5xy2 - y)
D. 
= 10y2sin (5xy2 - y) cos (5xy2 - y); 
= 2sin (5xy2 - y) cos (5xy2 - y)
Solve the problem.The annual population density of a species of insect after n years is modeled by a sequence. Suppose that the initial density of insects is 638 with r = 1.7. Write a recursive sequence that describes this data, where an denotes the insect density during year n.Find the terms a1 , a2 , a3 , ...., a5 . Round to two decimal places, if necessary.
A. a1 = 1084.60, a2 = 1843.82, a3 = 3134.49, a4 = 5328.64, a5 = 9058.69 B. a1 = 638, a2 = 638, a3 = 638, a4 = 638, a5 = 638 C. a1 = 638, a2 = 191.40, a3 = 57.42, a4 = 17.23, a5 = 5.17 D. a1 = 638, a2 = 1084.60, a3 = 1843.82, a4 = 3134.49, a5 = 5328.64
A discount outlet is offering a 70% discount on all items. Select a linear equation giving the sale price S for an item with a list price L. ?
A. 
B. 
C. 
D. 
E. 