2,575 Answered Questions for the topic Maths

Maths Math Math Help

02/03/15

Prove that.....
Anyone help me solve this?Prove that: cos(y-Π)+sin(y+Π/2)=0    
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Maths

02/02/15

maths problem
Rearrange this formula to make b the subject. b) Factorise x2+ x — 2 hence simplify x^2+x-2 over x^2-4
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Maths

02/02/15

simultaneous equation
2x+3y=15.5   x+y=6
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Maths

02/02/15

maths problem
12 ) y is directly proportional to x3 When x = 2, y = 20. (a) Find y when x = 8. ¦ (b) Find x when y = 1000.
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Maths

02/02/15

maths problem
 On another special offer day, all prices are reduced by 40%. At the end of the day. special offer prices go back to normal. By what percentage do special offer prices increase at the end of the day?
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02/02/15

maths problem
A basket ball team has 5 players and one reserve. the mean weight of the 5 players is 58kg the reserve weighs 64 kg whats the mean weight of all 6 players
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01/30/15

Find the partial fraction of the following:
I have worked this out myself but it's not the same as my friend is getting so we need someone else to give it ago please, again please show your steps:   Find the partial fraction of the... more
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Maths Terms

01/30/15

Rewrite the following in terms of “a”: y=xe^((a/vw) )
Can someone help me with this one please.   Rewrite the following in terms of “a”: y=xe(a/vw)   I'm not sure of the steps on how to achieve the correct answer.
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Maths

01/28/15

A cell phone was marked at 40% above the cost price and a discount of 30% was given its marked price. Find the gain or loss percent made by the shopkeeper.
explain me with steps please
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Maths

01/26/15

a bottle contains 750ml of lemonade. jenny drinks 50 % more than marcuss. between them the two friends finish the bottle. How much did Jenny drink
ASAP answer
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01/13/15

probobility maths word problem help on A AND B please
when Jake catches the bus to school in the morning, it may be early, on time or late.  The probability that it is early is 0.05 The probability that it is late is... more
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Maths

01/12/15

if the 1st term of a geometric sequence is 3 and the last is 192 and the sum of 1st seven terms is 381 find common ratio i
plese help im confused
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01/11/15

Probability in a game of chess
In a game of chess, you can win, draw, or lose.  Gary plays two games of chess against Mijan. The probability that Gary will win any game against Mijan is 0.55 The probability that Gary will... more
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Maths

01/09/15

URGENT HELP
simplify this expression : 8s - 5t - 2s + 2t Can you please be quick ? thank you :)
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Maths

12/19/14

The indicator of oil tank shows 1/5 full. when truck delivers 165 gallons oil, the indicator shows 4/5 full. What is the capacity ) of the tank?
options in gallons are 55 145 105 275 plz explain properly
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Maths

12/08/14

Find all t such that 8ln(t+1)=16
a) 8ln(t+1)=16   b) 10=2e^t+2
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Maths

11/27/14

sum of two numbers is 2 and their sum is 6 .what are these two numbers?
sum of two numbers is 2 and their sum is 6 .what are these two numbers?
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11/18/14

if a power b=b power a then prove a=b
if a power b=b power a then prove a=b  
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Maths

11/17/14

quadratic equation
The condition that the roots of equation x3+3px2+3qx+r=0 satisfied, is
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Maths

11/16/14

if it took tom 3hrs to travel 22km how fast was Jack travelling if he arrived 20mins after assuming they left at the same time?
please write out steps to get the anwser
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11/08/14

Expanding Square Roots
Expand (√5 + 2√3)(√5 -2√3). Express your answer as simply as possible.   Please explain how to answer this question. Thanks :)
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11/08/14

Rationalising Denominators
Rationalise the denominator of 21/√7 and simplify the answer.   Please explain a) what this question means and b) how to answer it. Thanks :)
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11/08/14

Solving Algebraic Fractions
Solve 3/x + 3/2x = 2   Please explain how to answer this question. Thank you :)
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11/08/14

3 x square root of 27 = 3^n
3 x square root of 27 = 3^n  Find the value of n.   Please explain how to answer this question. Thank you :)   P.S. How do you insert a square root symbol (so as to make asking questions like... more
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Maths

11/03/14

Whats the answer to the following question?
Find the quotient to two decimal places: 6742 divided by 22
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