09/18/18

second attemp...Man, are we confused now.
students in spanish increse each year....   555 + 33x   students in french decrease each year   230 - 2x   assuming consistent enrollment numbers, how many years will there be 3 times as... more
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03/17/18

If 4 dices are rolled in how many ways the largest of them is not 4?
plz answer this question
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02/24/18

Write a two column proof of the following : GIVEN : BC=DE PROVE:BD=CE
given: BC=DE  prove : BD=CE
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02/07/18

Which of the following must be true?
For the differentiable function on the interval [1, 3] f(1)=-2   f(2)=4  f(3)=-2 Which of the following must be true? I. There must be at least one point on the interval where is zero.II. There... more
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01/27/18

Mathematics
2^x + 2^x+1 = m * 2^x+2   Is ‘m’ a: natural, rational or irrational number? 
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01/27/18

2 years from now, a man will be 3 times as old as his daughter. If the current difference in their ages is 30 years, find the age of father and daughter now.
I need help in this, as I have been trying to figure it out but got it wrong all the time.
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01/11/18

Write an absolute value inequality that represents the given interval.
Write an absolute value inequality that represents the given interval.   <--------------●                           ●               > <                                                 ... more
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12/06/17

Find the focus ,vertex and directrix of (y+5)^2=-6x+12
how do I put this in y^2=4px form ?  John
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11/21/17

Help with this problem.
on Saturday, Maria drove 150 miles from her home to visit her parents. She drove at a constant speed. On Monday she drove the 150 miles back to her home and again drove at a constant speed. On... more
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11/18/17

Determine which number is larger
this is the problem:  Using exponent rules; determine which number is largest    2^75 and 3^50
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11/06/17

if in the expansion of ( 1+x)^ m (1 -x) ^n, the coefficients of x and x^2 are 3 and -6 then n=?
if in the expansion of ( 1+x)^ m (1 -x) ^n, the coefficients of x and x^2 are 3 and -6 then n&m.  
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11/02/17

In 45 years gabriela will be 4 times as old as she is right now. How old is she right now?
Help me find the answer that I need
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11/02/17

Water rationing.
On an island many houses have running water from 8 a.m. to 10 a.m. During those hours Mike fill several containers of different sizes with water which his family will use for the day one afternoon... more
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11/02/17

How many of each coins do they have?
A man has 27 coins, all of which are pennies, Nickel, dimes and quarters. He has five more dimes than pennies and three times as many quarters as nickels. If the total value of his change is $3.45,... more
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11/02/17

how many quarts of 6% butterfat milk and 2% butterfat milk should be mixed to yield 40 quart of 3% butterfat milk
how many quarts of 6% butterfat milk and 2% butterfat milk should be mixed to yield 40 quart of 3% butterfat milk
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11/01/17

Linear algebra
How to determine whether the vectors u:(1,-1,4) , v:(-2,1,3) , w:(4,-3,5) span R^3     ???
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09/25/17

If you draw a card with a value of four or less from a standard deck of cards, I will pay you $59. If not, you pay me $14.
If you draw a card with a value of four or less from a standard deck of cards, I will pay you $59$⁢59. If not, you pay me $14$⁢14. (Aces are considered the highest card in the deck.)
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09/17/17

Identify the curve by finding a cartesian equation for the curve
r2sin(2x)=1
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09/11/17

What runs parallel to the Tropic of Capricorn?
i really need this for an assignment   
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09/11/17

Write a piece-wise function to represent this situation
monthly service charge-$22.00 first 30 hours of usage -$0.00 next 50 hours of usage-$0.25/hour over 80 hours of usage-$1.00/hour  
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09/11/17

Inequality word problem
At the R.R. Engineering Company, the average starting salary for a new engineer is $63,700, but the actual salary could differ from the average by as much as $2,430. Write the absolute value... more
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08/27/17

Suppose that $867.9 is invested at 6.0% compounded continuously. How much is in the account after 13.4 years? Round your answer to the nearest cent.
Suppose that $867.9 is invested at 6.0% compounded continuously. How much is in the account after 13.4 years? Round your answer to the nearest cent.
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08/27/17

algebra in physics and chemistry
Q1: A water molecule has two hydrogen atoms and one oxygen atom.The atomic weight of water is 18units and that of hydrogen is 1unit .Find the atomicweight of oxygen.   =>I think the answer... more
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08/22/17

calculus question
Alex and Veronica were discussing the definite integral ∫₀³ (x² − 1)dx. Alex said it represented the total area bounded by f ( x ) = x² - 1 and the x-axis , between x = 0 and x = 3. Veronica said... more
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08/22/17

Standing Wave Equation help?
How do I solve this? A wave has an amplitude of .0800 m and is moving 7.33 m/s. One oscillator in the wave takes .115 s to go from the lowest point in it's motion to the highest point. Find the... more
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