08/27/18

#### If the plane is 2200 feet above the ground and the jump lasts 85 seconds, how high above the ground was the skydiver 40 seconds after he jumped?

Calc word problem, solve using linear equation knowledge

07/31/18

#### Integration

A particular moves on x-axis so that its position at time t is s(t)= (t2-t)/ t-1. at what value(s) of t the velocity is zero?

09/18/17

#### Simplify the following expression. g(F(f(x)))

Let f(x)=x2-8, g(x)=x3, and F(x)= 1 x−1.
Simplify the following expression.g(F(f(x)))

02/07/17

#### calculus. How to integrate?

Evaluate the definite integral. The boundary is from 0 to √3/5
∫ 1/(1+25x2) dx

11/14/16

#### Wht the word problem answer?

matthew made a bookcase,the cost of making the bookcase was $647.50.after the book case is sold, the shopkeeper recieves 15% of the selling price, Matthew make profit of $160 , calculate the...
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11/14/16

#### There were 288 students attending a trip. 4 buses were filled, and 8 students traveled separately in a car. How many students were in each bus?

help please

11/13/16

#### Bus. Calc dimensions

For reasons too complicated to explain, I need to create a rectangular orchid garden with an area of exactly 169 sq. ft. abutting my house so that the house itself forms the northern boundary. The...
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04/28/16

#### Samantha needs to mix a 20% saline solution with a 40% saline solution to create 200 millileters of a 26% solution. How many millileters of each solution must S

Samantha needs to mix a 20% saline solution with a 40% saline solution to create 200 millileters of a 26% solution. How many millileters of each solution must Samantha use?

#### a large box measures 4 ft by 7 ft by 3 ft. Find the volume of the box. Convert your answer to in3

large box measures 4 ft by 7 ft by 3 ft. Find the volume of the box. Convert your answer to in3

04/26/16

#### An airplane heads due west with an airspeed of 84 m/s. Because of a wind...

An airplane heads due west with an airspeed of 84 m/s. Because of a wind blowing due north, the speed of the airplane relative to the ground is 98 m/s. What is the wind speed? (ans: 50 m/s toward...
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04/20/16

#### A particle moves on a line away from its initial position so that after t hours it is s = 2t^2 +3t miles from its initial position.

Find the average velocity of the particle over the interval [1, 4]. Include units in your answer.
Thank you!!

#### Evaluate each limit, if it exsists.

Here are some examples of questions in the textbook that I don't know how to do for my test!
Evaluate each limit:
lim (x approaches 0) tanx/x
lim (x approaches 0)...
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04/18/16

#### help me solve this problem?

suppose that when a particular drug is injected, the concentration is 1.5mg/mL. After 4 hours, the concentration has dropped to 0.25mg/mL. Solve for the decay constant, k, and write an exponential...
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04/17/16

#### Which has more momentum? What momentum does the car possess relative to the truck and Track relative to the car?

A car weighing one ton is moving at 50 km/hr and a truck weighing two tons is moving at 25 km/hr. Both car and the truck are moving in opposite directions.

04/12/16

#### would it take more .1m hcl or .1m h2so4 to neutralize 30 ml of naoh

i dont understand how to set up this problem and why?
would it take more .1m hcl or .1m h2so4 to neutralize 30 ml of naoh

03/29/16

#### Population Grows

A population grows exponentially according to the differential equation dp/dt =kp, where P is the population, t is time, and k is a positive constant. If P(0) = A, what is the time for the...
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03/29/16

#### plane can fly 260 miles in the same time as it takes a car to go 100miles as the car travels 80mph slower find the speed of the plane.

I know the formula to use but am very confused on how to set it up

03/29/16

#### How do I cancel

We have been using Miss Bev for a while now and we are very happy with her, but have decided it is time to discontinue our sessions.

03/22/16

#### In the laboratory you dissolve 21.2 g of nickel(II) bromide in a volumetric flask and add water to a total volume of 375. mL. ??What is the molarity of the solu

college chemistry

03/22/16

#### How many milliliters of an aqueous solution of 0.167 M potassium nitrate is needed to obtain 12.0 grams of the salt?

college chemistry

#### find the mass that was burned

C2H6 + O2→CO2 + H2O. The heat from this reaction vaporized 20 grams of water. What mass of C2H6 was burned?

03/03/16

#### how to do this equation? I got it wrong?

Factor the following.2a^3b-18ab^3
isn't the GCF 2 and a?

02/25/16

#### at what rate is the supply changing?

Suppose the wholesale price of a certain brand of medium-sized eggs p (in dollars/carton) is related to the weekly supply x (in thousands of cartons) by the following equation.$ 625p^2 - x^2...
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02/25/16

#### CALCULUS HELPPPP

A storage tank at a factory collects liquid waste and can be drained by opening a drainage valve at thebase of the tank. The depth, d(t), of fluid in the tank t hours after the valve is opened is...
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