Solve the problem.An open box is to be made from a rectangular piece of tin by cutting two inch squares out of the corners and folding up the sides. The volume of the box will be 100 cubic inches. Find the dimensions of the rectangular piece of tin.
A. 4 in. by 9 in.
B. Not enough information
C. 5 in. by 9 in.
D. 5 in. by 10 in.
Answer: B
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Find the length and direction (when defined) of u × v.u = - 
i + 
j + k, v = i + j + 2k
A. 2
; - 
i + 
j - 
k
B. 8; 
i - 
j - 
k
C. 2
; 
i + 
j - 
k
D. 8; 
i - 
j + 
k
Evaluate the polynomial for the given value.-2x2 - 4x + 9; x = -4
A. -17 B. 33 C. -11 D. -7
Find the missing quantities. If there is no operating loss or absolute loss, write "none."
A. Breakeven point = $51 Operating loss = $42 Absolute loss = $9 B. Breakeven point = $42 Operating loss = $9 Absolute loss = $51 C. Breakeven point = $42 Operating loss = none Absolute loss = none D. Breakeven point = $20 Operating loss = none Absolute loss = $9
Test scores are 92 out of 100, 95 out of 100, and 91 out of 100. Homework is 35 out of 70. What is the minimum final exam score x (200 points possible) is needed to get 90% or better?
A) 198 B) 199 C) 200 D) 188 E) 175