Solve: y?? + 9y? + 20y = 0 .
What will be an ideal response?
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Set up a definite integral that gives the arc length of the given curve.x = t, y = t6, 0 ? t ? 1
A. 
B. 
C. 
D. 
Compare the right-hand and left-hand derivatives to determine whether or not the function is differentiable at the point whose coordinates are given.
y = 
y = -1
A. Since limx?-1+ f '(x) = -1 while limx?-1- f '(x) = 0, f(x) is not differentiable at 
B. Since limx?-1+ f '(x) = 0 while limx?-1- f '(x) = 1, f(x) is not differentiable at 
C. Since limx?-1+ f '(x) = 0 while limx?-1- f '(x) = -1, f(x) is not differentiable at 
D. Since limx?-1+ f '(x) = 0 while limx?-1- f '(x) = 0, f(x) is differentiable at 
Find the amount of interest earned by the deposit.$480 at 15% compounded quarterly for 5 years
A. $485.45 B. $486.08 C. $522.31 D. $1002.31
Provide an appropriate response.The demand per week for a new automobile is 400 units when the price is $16,700 each, and 500 units when the price is $14,900 each. Find the demand equation for the cars, assuming that it is linear.
Fill in the blank(s) with the appropriate word(s).