03/05/19

Using data, create a mathematical model (based on the number of years) that you can use to predict the population in 2019?
The population of a city, with land area 36 square miles and 109 parks has been decreasing over time. In 2010 the population was 5,900. In 2012 the population had dropped to 4,700. By 2014 the... more
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03/05/19

Maya decides to save for 2 years. She opens a savings account with $400 . The account pays simple interest at an annual rate of 3%. She doesn't make any more deposits.
1.) how do I find the total interest maya will earn?2.) what will the total amount in the account be including interest
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03/05/19

If sin theta - cos theta = 1/2, then find the value of 1/cos theta + cos theta
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03/05/19

If M is the midpoint of AB, A (0,4) and M (3,-2), find the coordinates of B.

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03/05/19

Samantha is 5 years younger than mark. In four years she will be half his age. How old are Samantha and mark

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03/05/19

how many liters of a 40% alcohol solution must be mixed with 90 liters of a solution that is 80% alcohol to get a solution that is 50% alcohol?
how many liters of a 40% alcohol solution must be mixed with 90 liters of a solution that is 80% alcohol to get a solution that is 50% alcohol?
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03/05/19

an isosceles triangle has sides that are 5, 5, 8. find its area and the length of the three altitude
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03/05/19

How many gallons of 70% antifreeze solution must be mixed with 80 gallons of 30% antifreeze to get a mixture that is 60% antifreeze?
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03/04/19

Jackie has a jar with dimes and quarters in it. The jar has 5 more quarters than it has dimes. If the value of the coins is $4.05, how many quarters are in the jar

Jackie has a jar with dimes and quarters in it. The jar has 5 more quarters than it has dimes. If the value of the coins is $4.05, how many quarters are in the jar
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03/04/19

find the length and width of an open box
A machine produces open boxes using square sheets of metal. The machine cuts​ equal-sized squares measuring 22 inches on a side from the corners and then shapes the metal into an open box by... more
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03/04/19

Find cos (x) if tan (x) = 5 and sin (x) < 0
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03/04/19

PreCalculus: Find a solution for the equation: Approximate to the nearest 100th.
equation: x^3-3x^2+2x+2=0
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03/04/19

A Chemist has one solution that is 60% acid and a second solution that is 50% acid.
A Chemist has one solution that is 60% acid and a second solution that is 50% acid. She wants to combine the solutions to make a new solution that is 54% acid. If she needs to make 400 ml of this... more
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03/03/19

What is the unemployment rate in a city if 45000 out of 50,000 adults in the labor force are currently unemployed
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03/03/19

Surface area of soda cans:
Soda cans are made out of aluminum and are shaped like a cylinder. The formula for the surface area of a cylinder can be used to find the amount of aluminum, in square centimeters, that is needed... more
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03/03/19

In the lab, Ravi has two solutions that contain alcohol
In the lab, Ravi has two solutions that contain alcohol and is mixing them with each other. He uses 3 times as much Solution A as Solution B. Solution A is  20%alcohol and Solution B... more
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03/02/19

It takes 2 hours to paint 15 doors. At this rate, how many could be painted in 30 hours?

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03/02/19

A ball rolls down a ramp for 15 seconds.  If the initial velocity of the ball was 0.8 m/sec and the final velocity was 7 m/sec, what was the acceleration of the ball ?
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03/01/19

The length of a rectangle is 2 centimeters less than its width. What are the dimensions of the rectangle if its area is 63 square​ centimeters?
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02/28/19

A 6110-kg bus traveling at 20.0 m/s can be stopped in 24.0 seconds by gently applying the brakes.  
What average force is exerted on the bus during this stop?
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02/27/19

Number that must be added to make x^2-1/3x a perfect square
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02/27/19

Number that must be added to make x^2+4x a perfect square
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02/26/19

if 4+5x<26 then what could the x be equal to.

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02/25/19

The population of a town is 9000 and it grows at a rate of 7% per year what will the population be in 8 years?
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02/24/19

A cylinder with a radius of 4 inches and a height of 6 inches is filled to the top with water then poured into a 9in by11in rectangular pan. How high is the water in the pan?
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