Solve the problem.Let x represent the number of textbooks purchased at $28 per book, and let y represent the total amount of money spent on textbooks. Use an equation to calculate the cost of 2 textbooks.
A. $56
B. $14.00
C. $112
D. $28.00
Answer: A
Mathematics
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Solve the differential equation.
= 6
A. y = 2x3 + x3/2 + C B. y = (2x3/2 + C)2 C. y = 4x3 + C D. y = 2x3/2 + C
Mathematics
Find the volume of the described solid.The base of the solid is the disk x2 + y2 ? 9. The cross sections by planes perpendicular to the 
between 
and 
are isosceles right triangles with one leg in the disk.
A. 72 B. 90 C. 144 D. 18
Mathematics
Sketch the curve of the vector function r(t) = (t², t³, t), t ? 0, and indicate the orientation of the curve.
What will be an ideal response?
Mathematics
In the series resonant circuit below, Vin = 8.0 V and R = 10 Kê. Find VO
a. 3.3 V
b. 4.0 V
c. 5.6 V
d. 6.6 V
e. 8.0 V
Mathematics