2,563 Answered Questions for the topic Maths

Maths Very Hard

01/02/17

√x+y=7,x+√y=11.find the value of x and y.

Very hard ,very hard ,very hard
Maths

12/29/16

If a person buys a book for Rs 36 which is available on 40℅ discount off the original price. What is the original price of the book

my questions are of course of mathematics
Maths Word Problem

12/26/16

a man has five apples. he eats two and puts three back. how many apples does he have on the fifth time?

i think the answer is 13  
Maths

12/23/16

the chuckle brothers have 20 pounds worth of change in a bag. when they split, paul should get 1 pound less than barry. knowing this, how much money does barry

the chuckle brothers have 20 pounds worth of change in a bag. when they split, paul should get 1 pound less than barry. knowing this, how much money does barry need to take in order for him to get... more
Maths

12/17/16

Marie earns $340 each week. She is given a 6.5 pay rise.How much does she earn each week after the pay rise?

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12/14/16

Physics Energy Maths simplifying

        How does the second line simplify to the third like REh seems to disappear

12/11/16

A quadratic function passes on the coordinates (0,7) ; (1,17) ; (2,31) and (3, 49), and the symmetry axis is -2. I need to find the a!

My answer booklet says the answer is 4/2 (or 1/2), but I don't understand why it's not 4/1. Thank you in advance!

12/10/16

How to find the slope of line2 if the slope of line1 and angle of line2 is given?

The measure of the angle from a line l1, with slope -1/3 to a line l2 is 135°. Find the slope of the line l2?

Polynomial related question

Consider the polynomial P(x)=(x-1)(x+2)(x-3)(x-4)(x-6)-100The equation p(x)=0 has two real and two imaginary roots How... Explain it.. The equation p(x)=0 has roots. Please tell me the number of... more
Maths

12/05/16

(1/27)^1/3

Hello.  I urgently need help.    How do I do the question (1/27)^1/3   When I work it out I get the answer 1/3 and so does my calculator. However,  my text book says the answer is 3.   I've... more
Maths

12/05/16

Kindly solve out these 2 questions

Q NO. 1= The Salaries of Yasmeen and Adnan are in the ratio 1 : 2. If the salary of each is increased by Rs.3000, the new ratio becomes 40 : 57. What is Adnan's present salary?     Q NO. 2= A... more
Maths

12/04/16

How many students in the class?

In a class of 'x' students are given 8 sweets each by a teacher she has excess of 9 sweets.when she give one more sweets to each student she has short of 14 sweets So how many students in the class?
Maths

11/30/16

If a hat costs £16.25 in a 35% off sale, what was it's original price

This is just a maths question I'm stuck on :)
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

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
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
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
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

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

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
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
Maths

10/21/16

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

explain the sum.......... easily.....
Maths

10/21/16

The L.C.M of (x^3 - a^3) and (x - a)^2 is

explain the answer.......... please
Maths

10/21/16

find the standard deviation of the first 10 natural numbers.

tell me answer..............

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