11/26/20

#### Derivative Rules

Explain the rules applied and find the derivative of the following equation.A(t) = t2e5-t

11/25/20

#### At what rate is the volume of the snowball decreasing when the radius is 12 cm?

A spherical snowball is melting in such a way that its radius is decreasing at rate of 0.2 cm/min. At what rate is the volume of the snowball decreasing when the radius is 12 cm. (Note the answer... more

11/25/20

Annabel is saving up money for a down payment on a motorcycle. She currently has $5832 , but knows she can get a loan at a lower interest rate if she can put down$6796. If she invests the $5832 in... more 11/22/20 #### A new 2014 luxury sedan that sold for$38,880 has a book value V of $24,319 after t = 2 years. (a) Find a linear model for the value V of the sedan.V(t) =(b) Find an exponential model for the value V of the sedan. Round the numbers in the model to four decimal places.V(t) =(c) Use a graphing... more 11/22/20 #### A new 2014 luxury sedan that sold for$38,880 has a book value V of \$24,319 after t = 2 years.

(a) Find a linear model for the value V of the sedan.V(t) =(b) Find an exponential model for the value V of the sedan. Round the numbers in the model to four decimal places.V(t) =(c) Use a graphing... more

11/21/20

#### f(x)= 2 x^{2} +13 x +20

rewrite by completing the square.

08/01/19

What is  equal to? A, B. C. D.

08/01/19

07/25/19

03/27/19

#### Solve the given system using the substitution method

y=3x-76x-2y=12solve the given system using the substitution method

03/27/19

03/25/19

#### Find the speed?

A kayak can travel 30 miles downstream in 55 ​hours, while it would take 15 hours to make the same trip upstream. Find the speed of the kayak in still​ water, as well as the speed of the current.... more

#### Percent of expenses

Compute the total cost per year of the following pair of expenses. Then complete the​ sentence: On an annual​ basis, the first set of expenses is​ _______% of the second set of expenses.Compute the... more

03/18/19

03/08/19

#### Put the equation in standard form and then solve by using the quadratic equation. Alvin throws the football to a receiver who jumps up to catch the ball. The height of the ball over-

3. Alvin throws the football to a receiver who jumps up to catch the ball. The height of the ball over time can be represented by the quadratic equation -4.9t2 + 7.5t + 1.8 = 2.1 . This equation is... more

12/16/18

#### martha received a 4% raise. Her new weekly salary is 249.60. What was her salary before the raise?

I have a terrible professor. She told us the answer but not how she got it.

12/16/18

11/02/18

#### If Lin is reading a 47-page book and she reads the first 20 pages in 35 minutes, at the same rate, would she be able to complete her book in a hour?

My mind is really blank right now and I have to study for this quiz tomorrow.

11/02/18