05/25/20

An investor wants to analyze the earnings of a mutual fund account. Four years ago, the value of the account was and it is now worth (no additional deposits were made).
An investor wants to analyze the earnings of a mutual fund account. Four years ago, the value of the account was and it is now worth (no additional deposits were made). If the account is compared... more
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05/21/20

Y varies inversely as x
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05/20/20

The graph of f ′(x) is continuous, positive, and has a relative maximum at x = 0. Which of the following statements must be true?
The graph of f ′(x) is continuous, positive, and has a relative maximum at x = 0. Which of the following statements must be true? The graph of f is always concave down. The graph of f is always... more
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05/07/20

What is the common difference or ratio
Given the following sequence 6,-24,96,-384..
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05/07/20

Vectors Problem - Suppose u has magnitude 5, and v has magnitude 8, and the angle between the two vectors is 105 degrees. Find u • v. Please include steps.
there are small arrows pointing right on top of u and v (format won't let me add)
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05/01/20

Brian kicks a soccer ball with the initial velocity of 25m/sec. The equation h=vt-5t^2. At what time during the descent is the height of the soccer ball 20 meters?
(where h=height, v= initial velocity, and t is the time.) represents this situation.I also have this equation to go off of:Y = - 5t^2 - 25t - 20
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04/28/20

Mean Value theorem question? I'm actually not sure what the topic is, but PLEASE HELP
We quote from V. Belevitch, Classical Network Theory (Holden-Day, 1968, p.159): “When a generator of e.m.f. e and internal positive resistance Ri is connected to a positive load resistance R, the... more
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04/13/20

Stoichiometry problem
__ N2 + __ H2 → __ NH3How many ammonia molecules are produced if 25 x 1024 molecules of nitrogen gas are reacted with an excess of hydrogen gas?
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04/12/20

a circle has a sector with area 20pi and a central angle of 2/5pi radians. what is the area of the circle?
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09/29/19

Physics Homework 2.4
A car is parked on an incline that makes an angle of 24˚ with the horizontal. The car rolls from rest down the incline with a constant acceleration of 3.96 m/s2 . How far will the car have... more
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06/10/19

A natural number whose squares diminished by 84 is equal to thrice of 8 more than that number?
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05/23/19

small and big popcorn bags
A large bag of popcorn is 2 1/2 of a small bag. at the end of a party there is 3 1/3 small popcorn bags and 2 1/4 large popcorn bags. How many small popcorn bags do we need for the remaining popcorn. more
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05/17/19

Geometry cereal box

Design a new cereal box that will hold the same amount of cereal but reduce manufacturing costs. Prove that your new design holds the same amount but can be manufactured more cheaply. *My box costs... more
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05/10/19

Geometry Help!!
Two trees are planted in a garden. One measures 10 feet 6 inches tall and casts a shadow of 11 feet 3 inches long. The second tree casts a shadow of 17 feet 6 inches long at the same time of day.... more
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04/17/19

A car goes uphill for 1 mile at 20mph and then downhill for 1 mile at 30mph. What is the average speed of the car? (It is NOT 25mph!)
Remember that average speed is total distance traveled divided by total time. The total distance is clearly 2 miles. So you need to figure out the total time.
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04/17/19

how long will it take for two trains to meet
Train A departed from City A at a speed of 80 kilometers an hour, and at the same time Train B departed from City B. Train B is 50% faster than Train A. The distance between the cities is 600... more
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03/27/19

The sum of the first three terms of a geometric sequence is equal to 42. The sum of the squares of the same terms is equal to 1092. Can you Find the three terms of the sequence?
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