2,563 Answered Questions for the topic Maths

08/16/15

Question: There are 6 boys and 8 girls in a drama club. Determine the number of ways to select 1 male lead and 1 female lead for a school play.
Permutation & Combindation
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08/14/15

If the period is PI - Mathematics
How would I calculate whether a period is PI? Is there an equation? I have a question on an assignment which asks to find out where the period is equalled to PI. 
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Maths

08/13/15

Can anyone guide me more about integration?
Guide me about how to find the area of shaded region in integration
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Maths Equation

08/12/15

Equations in a
1. Expand (a - 1/a)2 2. If a > 1 and a2 + 1/a2 = 706/225, find the value of i) a - 1/a ii) a + 1/a iii) a
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08/12/15

Cars driving in opposite directions on the same road, what time do they pass each other?
Car A begins to drive from Town A to Town B at 9 am. Car B leaves from Town B to drive to Town A via the same road as Car A at 9:17 am. After the two cars pass each other, Car A takes 10 minutes to... more
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Maths Probability

08/11/15

Gary drives to work everyday, and estimated the probability that he gets a red light at a particular intersection is 3/10. He based this on his last 10 trips.
I need to carry out a simulation on excel spreadsheet on my case to obtain the number of red lights he will encounter at this intersection on his next 100 trips. Can anyone help please.
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Maths Probability

08/11/15

Gary drives to work everyday, and estimated the probability that he gets a red light at a particular intersection is 3/10. He based this on his last 10 trips.
I need to carry out  a simulation on excel spreadsheet on my case to obtain the number of red lights he will encounter at this intersection on his next 100 trips. Can anyone help please.   Thanks
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Maths

08/11/15

In a clothing factory, 28% of the employees are female. There are 672 female employees. How many employees are there in total?
i have this question and i dont know how to figure it out for y maths test tomorrow  
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08/10/15

compound interest
Quan has 20,000 to invest over the next three years. He has the choice of investing his money at 6.25% simple interest or 6% compound interest  A) calculate the interest that quan will earn if he... more
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08/10/15

after investing $5000 into a simple interest account for 2 years, Josephine received $5890. what percentage p.a did she get?
Please show working out 
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Maths

08/07/15

Poppy has 30 beads.the probability of taking out a red bead is 0.4. How many red beads are there?
It's so hard  
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08/07/15

Daniel bought a new sweatshirt at the store when they were having a 10% off sale.
If the regular price of the sweatshirt was $16, how much did Daniel pay with the discount?
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Maths

08/04/15

A dam has a capacity of 302,470 litres. At present it is 58% full. How many more litres of water will the dam need to reach 100% capacity?
Please anyone who can solve this question and show me how. Thanks so much!
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08/01/15

Find the x value - 4^x = 6
4x = 6   What is the method to find x?
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08/01/15

Log6(6) + 2 Log 10 - 5 In e + Log 1
Log 6(6) + 2 Log 10 - 5 In e + Log 1  = Log 1 + 2 Log 1 - 5 In 1 + Log 0  = 1 + (2*1) - (5*1) + 0 = -2
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07/30/15

3 questons
value of x that results in the required y value5x2=7 x=1, 1.1 ,1.2 ,1.3, 1.4, 1.5y=x2-7x+10=5x=0.5, 0.6, 0.7, 0.8, 0.9, 1y=3x2-5x=2x=1, 2, 3, 4, 5, y=
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07/30/15

please help me
value of x that results in the required y value5x2=7 x=1, 1.1 ,1.2 ,1.3, 1.4, 1.5y= x2-7x+10=5x=0.5, 0.6, 0.7, 0.8, 0.9, 1y= 3x2-5x=2x=1, 2, 3, 4, 5, y=
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07/30/15

need help on this
value of x that results in the required y value 5x2=7  x=1, 1.1 ,1.2 ,1.3, 1.4, 1.5 y=   x2-7x+10=5 x=0.5, 0.6, 0.7, 0.8, 0.9, 1 y=   3x2-5x=2 x=1, 2, 3, 4, 5,  y=    
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07/09/15

Maths problem. Please help asap! Thanks in advance!!!
The price of a shirt is increased by 10% for GST and then decreased by 10% for a sale. The new price is $44 , what was the original price.
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Maths

07/06/15

10 members are required to complete a cable laying work in 7 days . How many labours will be required to complete the work in 5 days
 i need bnow 
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Maths

07/01/15

Math help Please
2,3,4,5,7,9   the diagram shows six cards with different digits.find the number of four digit numbers that can be formed if:   (a) the even digits are to be side by side (b) the odd and even... more
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Maths Add Maths

06/28/15

How do you differentiate sin(x) - ln(2x)
How do you differentiate sin(x) - ln(2x)
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Maths

06/28/15

How do you differentiate sin(x) - ln(2x)
Please explain how to do this sir
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06/23/15

Show that this equation is true
It is given that p is a prime number and p > 5. a) Show that p= 6n + 1 or p = 6n + 5 for some positive integer n. b) Hence, show that p2 + 2 is divisible by 3.   How can I 'show that'? With... more
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06/23/15

Factorising an algebra equation
Factorise (a2 - a - 12)x2 + (2a2 - 4)x + a2 + a   How is this even possible?!?
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