05/07/18

which European nation was responsible for colonizing most of central and south america
was it Spain,Portugal,Netherlands,or Germany
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05/07/18

y varies directly as x. If y = 5 when x = 2, find x when y = 4
ASK A QUESTIONy varies directly as x. If y = -5 when x = 15, find x when y = 3.
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05/07/18

Solve: T=Tf+T0e^-kt for t.
Solve: T=Tf+T0e^-kt for t.
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05/07/18

How to determine if a satellite's orbit is bound based on its radius?
Would it be bound if it's orbital radius is larger than the radius of the planet it is orbiting ?
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05/07/18

A satellite orbiting the earth has a speed of 5.5 km/s when its distance from the center of the earth is 11,000 km. Is the satellite in a bound orbit?
A satellite orbiting the earth has a speed of 5.5 km/s when its distance from the center of the earth is 11,000 km. Is the satellite in a bound orbit?   I have already calculated that the... more
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05/06/18

Help with this math question
The roots of the equation x^2+bx+c=0 are −4 and 2. Find b.
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05/06/18

Humans can walk at an average speed of 2.00 m/s. How many hours would it take someone to walk the 4800 km from New York to Los Angeles?
Humans can walk at an average speed of 2.00 m/s.How many hours would it take someone to walk the 4800 km from New York to Los Angeles?
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05/06/18

The pressure of a 3.2 mL sample of gas at 66.5 ºC increases from 1.3 mm Hg to 27.2 mm Hg. If the volume is unchanged, what is the new temperature?
 chemistry
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05/06/18

If the discriminant is equal to 0, how many solutions are there
i just want a strait simple answer pls i have spent 20 mins trying to find a strait simple answer to this simple quadratic question PLS HELP
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05/06/18

Mrs.Haynes hires a car for 1 day. She drives the car 400 miles. What is her total bill?
The car hire company charges $200 per day plus $0.20 for each mile driven
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05/06/18

Find k such that the system of equations has no unique solution.
-2x -7y +1z=46x -5y -3z=14kx -2y -z=5   k=?   I need help understanding how to solve this problem.
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05/06/18

find the acceleration and the tension in the cord.
a light frictionless pulley carries a light cord to which is attached at one end a 48kg mass, the other 64kg mass. the masses are suddenly released. find the acceleration and the tension in the... more
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05/06/18

How much heat must be removed
from 0.81 kg of water at 0 degrees Celsius to make ice cubes at 0 degrees Celsius.?
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05/05/18

A number between 10 and 60 has digits which differ by 5 and the digits also add to 5
I can't work out this question
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05/05/18

My friend has a 7 feet long Robin's is 1 foot longer ho many inches is that
How much inches is that  
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05/05/18

word problem
for a fund raising activity , a charitable organization produces calenders to sell in the community. The profit, y (in dollars), can be approximated by; y=-1/40x^2+10x-500 where x is the number of... more
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05/05/18

system of equations
Use any method to show how to find the solution set of the following system. State the method used.   -x+y-z=-14 2x-y+z=21 3x+2y+z=19
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05/05/18

At what rate is the shadow​ decreasing?
On a morning of a day when the sun will pass directly overhead, the shadow of a 60-ft building on level ground is 25 ft long. At the moment in question, the angle theta the sun makes with the... more
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05/05/18

Suppose you can take square roots of negative numbers. Find two numbers with each following sum and product. Sum of 3, product of 5. Sum of 6, product of 15.
I am not sure how to do this as I have not worked with things like this and was hoping for some help.
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05/05/18

equation of tangent
write an eqaution of tangent to each curve at the given point p (1,-1) y= √x - 2/^3√x                    (cubic root of x)
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05/05/18

Exponential function
A sample of  peanut butter is found to contain a concentration of 50000 bacteria per ml. Suppose that the growth of the bacterial concentration is exponential.  A) find the exponential model for... more
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05/05/18

If a town with a population of 1,500 doubles in size every 20 years, what will the population be 40 years from now?
Dont really know how to do these, it is an exponential growth and decay question.
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05/05/18

Let f(x) = 4x − 7 and g(x) = x + 1. Find the following function value. (f − g)(−6)
Let f(x) = 4x − 7and g(x) = x + 1.Find the following function value. (f − g)(−6)
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05/05/18

word problem below
Seven hundred grams of a radioactive material decays according to the formula A = 700(2/3)^t ,where t is measured in years. Find the amount present in 10 years. Round to the nearest one-tenth of a... more
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05/05/18

What are possible equivalent equations to 4 times the square root of 5
What are possible equivalent equations to 4 times the square root of 5
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