All Questions ⁺⁰238147 Questions

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maths

Find the sum of the integers from 17 to 82 inclusive.

Guest Feb 3, 2012

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1700

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test

how much pure alcohol should be added to 300 ml of 30 percent alcohol to raise the alcohol solution to 40 percent

Guest Feb 3, 2012

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2959

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math

One window washer working alone can wash the windows of a certain building in 15 hours. His partner can do the job in only 10 hours. To the nearest half-hour, how many hours would they need to do the job working together?

Guest Feb 3, 2012

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1451

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Algebra 2 word problem

The length of a rectangle is 4 feet greater than its width. If the rectangle has an area of 60 square feet, what is the rectangle's width and length?

Guest Feb 3, 2012

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1658

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lcm

find least common multiple of 5,8

Guest Feb 3, 2012

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1499

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Two Step Equations

What is v+9 over 3 =8

DragonSlayer554 ●●●

Guest Feb 3, 2012

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1354

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pre-algebra

what is the greatest common factor of 16/36. then simplify it.

Guest Feb 3, 2012

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1382

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Maths Question

A set of marks (x), with mean 35 and standard deviation 5, is converted to a new set of marks (y), with mean 50 and standard deviation 15, using a transformation of the form y = a + bx. What new mark corresponds to the original mark of 40?
(a) 55
(b) read more ..

Guest Feb 3, 2012

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1361

1

what is the date after 52weeks from 1st april 2012 .........

[input][left] [right] Quote: [/right][/left][/input]

Guest Feb 3, 2012

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1629

2

perimeter of a triangle

how do you find the perimeter or a triangle?

Guest Feb 3, 2012

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1419

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Squares

A square bathroom window has diagonals of 42 inches. How many feet of trim will be needed for the frame? How many square feet of glass will be needed for the window pane?

Guest Feb 3, 2012

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1435

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Pre-Cal

A navigator on an airplane knows that the plane's velocity through the air is 250 kph on a bearing of 237 degrees measured clockwise from north. By observing the motion of the plane's shadow across the ground, she finds to her surprise that the plane's ground read more ..

Guest Feb 3, 2012

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1478

2

Chemistry math

im asked to convert the following in chemistry math. 6.02x10 to the 22th power.

Guest Feb 3, 2012

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1444

1

what up????

Guest Feb 3, 2012

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1296

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standard deviation

what is the formula for calculating standard deviation?

Guest Feb 3, 2012

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1296

1

Logarithms

log(x-2)+log 5=log 100

Guest Feb 3, 2012

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1428

1

MATT

4/3TIMES 3.14TIMES 12CUBED

Guest Feb 3, 2012

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1743

1

fin

Suppose you have $1,500 and plan to purchase a 5-year certificate of deposit (CD) that pays 3.5% interest, compounded annually. How much will you have when the CD matures?

Guest Feb 3, 2012

Feb 2, 2012

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1455

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math

what is 1,963.5 divided by 3.14

Guest Feb 2, 2012

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1564

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Algebra

Guest Feb 2, 2012

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1518

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Calculus

lim : (x^2+x-6)/ x^2 -9
x-> -3
What is the limit ?

Guest Feb 2, 2012

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1552

1

+9

Some form of algebra maybe?

What is x equal to in the following?
fcsa ( X ; 1 ; 110 ; 0 ) = 47

mark01 Feb 2, 2012

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1443

1

SQ roots

Is the square root of 484 a perfect sq root? Explain how u know.

Guest Feb 2, 2012

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1579

1

Fraction 2 Decimal

write 28/15 as a decimal

Guest Feb 2, 2012

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1504

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+9

multiply mixed fractions

5 5/8 x 1 4/5=
I have an answer key but cant seem to get the same answer. can you help

nharward Feb 2, 2012

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