Solve the problem.The width of a rectangle is 4 inches. Let W be the width (in inches), L be the length (in inches), and A be the area (in square inches).a. Sketch three possible rectangles of width 4 inches.b. Which of the symbols W, L, and A are variables?c. Which of the symbols W, L, and A are constants?
What will be an ideal response?
a. The rectangles are not drawn to scale. Answers may vary. 
b. L, A
c. W
Mathematics
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Solve the problem.Find an equation for the tangent to the curve at P.
A. y = - 
x + 
- 1 - 
B. y = 
x + 1 + 
C. y = - 
x - 1 - 
D. y = 
x - 
+ 1 + 
Mathematics
Use implicit differentiation to find dy/dx and d2y/dx2.x2 + y2 = 5, at the point (2, 1)
A. 
= - 2; 
= -5
B. 
= - 2; 
= 1
C. 
= 2; 
= 5
D. 
= - 
; 
= 0
Mathematics
For the given initial investment, simple interest rate, and time of investment, find the total value of the investment. Round to the nearest cent.$6000 at 4% for 18 months
A. $9600.00 B. $6360.00 C. $10,320.00 D. $360.00
Mathematics
Estimate. Choose a rounding digit that gives one or two nonzero digits.8.89 ÷ 3
A. 0.3 B. 0.03 C. 30 D. 3
Mathematics