Write the expression in the standard form a + bi.i3
A. 1
B. i
C. -1
D. -i
Answer: D
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Determine the indefinite integral.
A. - 
csch-1 
+ C
B. 
csch-1 
+ C
C. sinh-1 
+ C
D. - 
sech-1 
+ C
Solve the problem.A private shipping company will accept a box for domestic shipment only if the sum of its length and girth (distance around) does not exceed 90 in. What dimensions will give a box with a square end the largest possible volume?
A. 15 in. x 15 in. x 30 in. B. 15 in. x 15 in. x 75 in. C. 30 in. x 30 in. x 30 in. D. 15 in. x 30 in. x 30 in.
Find the product.(4x - 11)(x - 10)
A. 4x2 - 52x + 110 B. 4x2 - 51x + 110 C. x2 + 110x - 51 D. x2 - 51x - 52
Solve.A bridge with a semi-elliptical arch extends over a river as shown. Find an equation of the ellipse that represents the arch of the bridge.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1