Simplify the expression. Write your answer without negative exponents. Whenever an exponent is negative or zero, assume that the base is not zero.x ? x9
A. x9
B. 2x10
C. 2x9
D. x10
Answer: D
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Find the surface area of the surface S.S is the intersection of the plane 3x + 4y + 12z = 7 and the cylinder with sides y = 4x2 and y = 8 - 4x2.
A. 
B. 
C. 
D. 
Integrate the function.
dx
A. 
cot4 x sec x + C
B. - 
cot2 x - 
ln 
+ C
C. 
cot2 x + ln 
+ C
D. 
cot4 x + C
Suppose that an automobile manufacturer has accepted orders for 30 minivans, 25 sport utility vehicles, and 15 sedans. These orders can be represented by the row vector Q = [ 30 25 15 ].The "raw materials" that go into each type of vehicle are steel, glass, plastic, paint, and labor. The entries in matrix R below give the number of units of each raw material (in this order) which are needed for each type of vehicle. R = 
. Suppose that steel costs $800 per unit, glass costs $400 per unit, plastic costs $300 per unit, paint costs $200 per unit, and labor costs $1000 per
unit. This data can be written as the column cost vector C = 
. The price the manufacturer negotiated for each minivan is $16,000, for each SUV is $21,000, and for each sedan is $13,000. This information can be written as the column price vector P = 
.Find the amount of each raw material the manufacturer will need to fill the orders.
What will be an ideal response?
Add and simplify. Write the answer as a mixed number as needed.2
sec + 3
sec + 
sec
A. 10
sec
B. 592
sec
C. 12
sec
D. 12
sec