2,563 Answered Questions for the topic Maths

Maths

05/24/18

Area 15m x 3m how many seats formula lw over 0.5

Need to calculate amount of seats in area
Maths

05/24/18

A father is three times as old as I am. If he is 26 years older than me, what are our ages?

equation please
Maths

05/22/18

I think of a positive number, square it, add 12, halve the answer and end up with 38. What is the original number?

I think of a positive number, square it, halve the answer and end up with 38. What is the original number?
Maths

05/19/18

7 out of 25 children are boys. What percentage of the children are boys

Show the workings and answers for the above question
Maths

05/17/18

So which bag should you select to be sure?

each of these bag contains two apples. one bag contains two green apples, another two red apples and the third one green and one red apple. lf three bags are mislabelled. you may look at only one... more

05/16/18

hypothesis testing question?

"The U.S. Postal Service advertises that at least 63.4% of all third class mail is read by the recipients. An environmental group, concerned about waste production wants to test this assertion.... more

05/14/18

Proving that a value does not decay in the process of motion

Hi   How do I go about proving that a value for energy does not decay during the process of motion?    Thanks    
Maths

05/14/18

2sin(2theta-20)=1

Helpppppppppp
Maths

05/13/18

meg works for 7hrs at 30$ per hour

summary OF YOUR Qustion up in down till mum hagd jabbd
Maths

05/12/18

If 2800 is 30%, what is 100%

I need this answer i hate this question i spent 3 hours trying to work it out pleasseeeeee hellpppp meeee 
Maths

05/12/18

Cosine theta - 3 sine theta=0

Please help me my head hurts, 

05/12/18

if 4tan = -3 and cos is positive, use a sketch to calculate the value of 5sin + 3cot

help me plssssssssssssssssssssssssssssssssssssssss
Maths

05/10/18

I have max and min value and a number in between, I would like to calculate what percentage it lies down side and up side? S

I have max and min value and a number in between, I would like to calculate what percentage it lies down side and up side? Suppose Max value is 600 and min value is 90 i would like to know what can... more
Maths

05/10/18

in an intelligence test administered on 1000 children, the average was 42 and standard deviation 24

  find the number of children exeeding a score 50
Maths

05/09/18

Find the zeroes of polynomial x^2+x-p(p+1)

Please answer the following question step By step

differentiate y with the respect of x : Y=2x

I need help with this questions 

two angles are 72 degrees and 49 degrees they appear twice in a pentegon. calculate the size of the 5th angle in the pentegon.

it is a maths question on angles and shapes please be correct thx
Maths Index Form

05/07/18

100^m ÷ 1000^n can be written in the form 10^z. Express z in terms of m and n

100m ÷ 1000n can be written in the form 10z. Express z in terms of m and n. 
Maths

05/06/18

Insert a rational number between them : 2/3 and 7/8

Plzz help me to to this question: insert a rational number b/w 2/3 and 7/8
Maths

05/05/18

A number between 10 and 60 has digits which differ by 5 and the digits also add to 5

I can't work out this question
Maths

05/05/18

find the cutoff passing grade such that 83. 4% of those taking the test will pass

The result of an exam score for a given class is normally distributed. If the mean score is 85 points and the standard devotion is equal to 20points  

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