2,575 Answered Questions for the topic Maths

Maths

11/30/16

what is the ratio of the surface areas of two spheres when thier radiis are in the ratio 1:4..??
option is 1:8 1:4 1:2 1:16
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11/15/16

A company selling a discounted product at 60cents, estimates that at the end of each day during peak season the cost of sales per day is $90.
If the number of items sold dailey is represented by x, determine:    a) The profit function b) The breakeven sales level c) The sales level generating a daily profit of $300 d) How much more... more
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Maths

11/13/16

Question in the description
As part of your work as a gardener, you must decide how to use your kitchen garden. You assign 1/2 of the vegetable garden to the cultivation of the potato. You use 1/4 of the remaining acreage to... more
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Maths

11/12/16

Help for a Long question. Year 9 work.
Two building are 20 metres apart. The angle of elevation from the top of the smaller building to the top of the taller building is 20 degrees. The angle of depression from the top of the smaller... more
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Maths

11/07/16

what is this number?
When you divide it by 2 you get a remainder of 1. When you divide it by 3 you get a remainder of 1. When you divide it by 4 you get a remainder of 1. When you divide it by 6 you get a remainder... more
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10/30/16

DIFFERENTIATION
The diagram shows the curve y = (3 − x)e^−2x and its minimum point M. The curve intersects the x-axis at A and the y-axis at B. (i) Calculate the x-coordinate of M
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10/26/16

Prove that (2n-3)^2 - (2n+3)^2 is a multiple of 8 for all positive integer values of n.
This is the supposed way of working it out: Expand: (2n+3)^2 - (2n-3)^2 (2n+3)(2n+3) - (2n-3)(2n-3) (4n^2+6n+6n+9) - (2n^2-6n-6n+9) 4n^2+6n+6n+9-2n^2-6n-6n+9 Then simplify to... more
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Maths

10/21/16

if 50% of (p-q)=30% of (p+q) & q=x% of p then the value of x is........
explain the sum easily
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Maths

10/21/16

if x^2 - y^2 = 160 & x-y=8 then the average of x & y is.....
explain the sum.......... easily.....
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Maths

10/21/16

The L.C.M of (x^3 - a^3) and (x - a)^2 is
explain the answer.......... please
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Maths

10/21/16

find the standard deviation of the first 10 natural numbers.
tell me answer..............
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10/17/16

Freddie cycles to work every day. Yesterday, his journey home from work took 50% longer than usual. By what percentage was his average speed slower than normal?
Can you please help me answer this maths question as I believe the answer to be 50% but that is too obvious.
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Maths

10/14/16

find least number to be subtracted from 1886 to get a perfect square
 for .the given number ,find the leat number to be subtracted to get a perfect square. the number is 1886
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Maths

10/09/16

what is the highest common factor of 16 and 24
i also need the lists   
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Maths

10/07/16

Juan has two fewer dimes than quarters.He has a total of $2.25 .
Define a variable  write as equation
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Maths

10/04/16

The sum of 26 and a number equals 3 times the number
The sum of 26 and a number equals 3 times the number   Define a variable and create equation
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10/03/16

Need some help on this word problem
The cost to produce x units of wire is C=20x+550?, while the revenue is R= 45x. Find all intervals where the product will at least break even.   A. The inequality in interval notation is _____B.... more
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Maths Proofs

10/02/16

Maths Proof
Show that the product of the first n even positive integers is 2^n(n!)   Apparently you can show this on one single line (which is required)
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Maths

09/29/16

how much colder is new york than sydney,
if new york is-4 degrees and sydney is 26 degrees
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Maths

09/28/16

A basketball player scored 5 more points in the most recent game than the previous game...how many points did the basketball player score in the previous game?
A basketball player scored 5 more points in the most recent game than the previous game. The basketball player also scored twice as many points in the most recent game than the game before the... more
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09/26/16

I need some help with this math problem please.
The length of each side of a square is 3 in. more than the length of each side of a smaller square. The sum of the areas of the squares is 185 in^2. Find the lengths of the sides of the two... more
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Maths

09/13/16

devid 20 into 7 parts that each value not repeated and answer is not in point
Device 20 into 7 parts Value not repeated Answer is not in point
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Maths

09/12/16

Problem solving
my petrol tank was a quarter full when i pull into the petrol station i put £22.50 worth of petrol and noticed that the tank was now two thirds full the cost was £1.20 per litre what is the... more
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Maths

09/12/16

Maths problem in desciption any help is needed. I appreciate all who choose to.
Zaina is curious about numbers that contain the number 2016. She insists that the digits 0, 1, 2, 6 occur only once in the number and they appear as the uninterrupted sequence 2016. She calls such... more
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Maths

09/12/16

Use two different methods to find the decimal expansion of 1/3541. Justify each method.
Maths, Help is needed! any help is appreciated
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