12/01/15

Friends and I have been trying to figure out how to set up the equation and graph it.
You have 40 minuets to exercise at the gym, and you want to burn 300 calories total using both machines. How much time should you spend on each machine?    Elliptical Trainer: 8 calories per... more
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12/01/15

Solving systems of equation by substitution
Y=-2 4x-3y=18
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12/01/15

Question about two leaking barrels
Two barrels of the same size contains water. They both have a hole at the bottom. One takes 10 hours to finish leaking while the other takes 8 hours. When does one of the barrel contain twice as... more
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12/01/15

Factor the expression using the GCF. 16x+56y
I do not know what it is.
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12/01/15

what is the sun god,apollo's symbol
what is apollo's(god of sun) symbol
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12/01/15

in one month a school recycled two fifths of its paper and produced 25 pounds of paper. how many pounds were not recycled
math problem
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12/01/15

A costume designer will buy between 5 and 12 hats for the actors in a play. Each hat costs $7. The function c(h) = 7h models the total amount of money the costu
Im trying to figure out how to get this equation and the answer im so confused!! answers are What is the practical range of the function? all real numbers from 5 to 12, inclusive all real numbers... more
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12/01/15

The area of 40x^2+45y^2=1800 is ------
Not sure what is the area of
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12/01/15

The line of the equation y=x+1 and the parabola of equation y=x^2-1 intersect at two points, P and Q.
The line of the equation y=x+1 and the parabola of equation y=x^2-1 intersect at two points, P and Q. What are the coordinates of the midpoint M of the segment PQ?
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12/01/15

which of the following is divisible by all of the integers from 1 to 10 inclusive? A)23*34 B)34* 45 C) 45*56 D) 56*67 E)67*78
This is a hard question whaich found in UKMT question test online
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11/30/15

The burial cloth of an Egyptian mummy is estimated to contain 58% of the carbon-14 it contained originally. How long ago was the mummy buried? (The half-life of
This exercise uses the radioactive decay model.
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11/30/15

divide radicals
square root of 3a11b10  divided by square root of 108ab10
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11/30/15

f(x) = x2 and g(x) = 5x.
how to determine the domain of the composite function. 
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11/30/15

how to write equations
a test hAS 80 QUESTIONS WORTH 100 POINTS. The test consists of true/false questions worth .75 each and multiple choice questions worth 2.75 points each. How many true/false questions are on the test
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11/30/15

A small radio transmitter broadcasts in a 53 mile radius. If you drive along a straight line from a city 70 miles north of the transmitter to a second city 74 m
A small radio transmitter broadcasts in a 53 mile radius. If you drive along a straight line from a city 70 miles north of the transmitter to a second city 74 miles east of the transmitter, during... more
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11/30/15

Solve system
{ x+y+z=6   x    -z=-2      y+3z=11}
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11/30/15

Prove the identity of:
Use algebra to prove the identity: cos(x)/1-sin(x) − tan(x) = 1 cos(x)
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11/30/15

what quadrant would the ordered pair (-3,5) be in?
what quadrant would the ordered pair (-3,5) be in?
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11/30/15

Find the exact value of cosine equation
Find the exact value of: cos(165?) − cos(75?)
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11/30/15

Find the exact value of sin
Find the exact value of: sin(75?)
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11/30/15

a rectangular atrium is in design. the perimeter is to be 720 feet of brass piping. what dimensions will maximize the area of the atrium
A rectangular atrium is in design. The perimeter is to be 720 Feet of brass piping. What dimensions will maximize the area of the atrium. 
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11/30/15

Pre calc word problem
The height in cm of the tip of the minute hand on a vertical clock face is a function, i (t), of the time, t, in minutes. The minute hand is 17 cm long, and the middle of the clock face is 219 cm... more
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11/29/15

all real numbers at most 7 units from 0
its an absolute value inequality that represents each set of numbers.
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11/29/15

What is the relationship among proportional relationships,lines,rate of change,and slope?
Its a essential question 
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11/29/15

Solve the system
{ x^2-y^2=39 { x-y=3   One "{" is suppose to be around both
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