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+5
348
1
maths
Find the sum of the integers from 17 to 82 inclusive.
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Guest
Feb 3, 2012
+5
311
1
test
how much pure alcohol should be added to 300 ml of 30 percent alcohol to raise the alcohol solution to 40 percent
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Guest
Feb 3, 2012
+5
458
2
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?
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Guest
Feb 3, 2012
+5
237
1
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?
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Guest
Feb 3, 2012
+5
339
1
lcm
find least common multiple of 5,8
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Guest
Feb 3, 2012
+8
258
3
Two Step Equations
What is v+9 over 3 =8
DragonSlayer554
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Guest
Feb 3, 2012
+8
242
1
pre-algebra
what is the greatest common factor of 16/36. then simplify it.
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Guest
Feb 3, 2012
+5
306
1
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 ..
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Guest
Feb 3, 2012
+5
227
0
what is the date after 52weeks from 1st april 2012 .........
[input][left] [right] Quote: [/right][/left][/input]
Guest
Feb 3, 2012
+8
318
2
perimeter of a triangle
how do you find the perimeter or a triangle?
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Guest
Feb 3, 2012
+5
226
0
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
+5
232
0
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
+5
282
2
Chemistry math
im asked to convert the following in chemistry math. 6.02x10 to the 22th power.
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Guest
Feb 3, 2012
+5
243
1
what up????
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Guest
Feb 3, 2012
+5
199
0
standard deviation
what is the formula for calculating standard deviation?
Guest
Feb 3, 2012
+5
209
1
Logarithms
log(x-2)+log 5=log 100
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Guest
Feb 3, 2012
+5
240
1
MATT
4/3TIMES 3.14TIMES 12CUBED
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Guest
Feb 3, 2012
+5
297
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?
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Guest
Feb 3, 2012
Feb 2, 2012
+5
269
1
math
what is 1,963.5 divided by 3.14
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Guest
Feb 2, 2012
+5
305
1
Algebra
-18=19y
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Guest
Feb 2, 2012
+5
273
1
Calculus
lim : (x^2+x-6)/ x^2 -9
x-> -3
What is the limit ?
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Guest
Feb 2, 2012
+5
291
1
+9
Some form of algebra maybe?
What is x equal to in the following?
fcsa ( X ; 1 ; 110 ; 0 ) = 47
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mark01
Feb 2, 2012
+5
283
1
SQ roots
Is the square root of 484 a perfect sq root? Explain how u know.
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Guest
Feb 2, 2012
+5
291
1
Fraction 2 Decimal
write 28/15 as a decimal
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Guest
Feb 2, 2012
+5
317
1
+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
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nharward
Feb 2, 2012
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