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Maths
Page 23
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e) A fair coin is tossed 6 times. What is the probability of getting exactly 2 heads? What is the mean of this experiment?
1 answer
asked by
Charles
440 views
A roll of wire is 8m 9cm long. If i cut it off into 9 pieces of equal length, what will be the length of each piece?
2 answers
asked by
Sivesh
696 views
Ques.- Solve the following system of linear equation by matrix method (inverse method) .
12p + 4q + 17r +11s = 5 14p + 8q + 9r +
2 answers
asked by
Yashi jain
537 views
Runner A speed 1km/hour
Runner B speed 2km/hour They start of at the same point at the oval.In a lap that is 500m, how many times
2 answers
asked by
Sandy
507 views
1.1what happens to the following arithemetic series if it continues indefinitely? 2+5+8+11+14+17+20+.....so S§=?
4 answers
asked by
Rabelani
356 views
At a boarding school, in the evening, 9 students always take walks in groups of 3. How can the groups be arranged so that each
1 answer
asked by
Yasmin
441 views
Write the following number in scientific notation 2 500 001
1 answer
asked by
Rudolph
445 views
Investigate and illustrate the behavour of the following geomentric series with r>1 2+4+8+16+32+64+.......... So s§=? Use at
1 answer
asked by
Rabelani
360 views
critical thinking: follow the steps below to find how many combined points were scored by Howie and Theo. write a number
7 answers
asked by
Little Flower
1,744 views
Hi,
What is the lowest positive integer greater than 1, which when divided by 5 or 8 leaves a remainder of 1 Thanks
5 answers
asked by
Suhas
1,987 views
In the sequence 3,p,q,24 are the first four terms.determine the values of p and q if the ,(a)the sequence is geometric .(b)the
3 answers
asked by
Rabelani
734 views
calculate the difference between the compound interest and the simple interest on R2000000 at 6% p.a. after 3 years
1 answer
asked by
nonopa Athi
403 views
Ann has 4 different jobs and she works 10 hours per week for each job. She earns $2 per hour at one job. Write an expression to
5 answers
asked by
Pinks
731 views
The red ribbon is 27 cm long. the red ribbon is three times the length of blue. What is the length of blue?
1 answer
asked by
Daniel
404 views
Solve Graphically the following simultaneous linear equations
2y-3x=12 x+6=y
4 answers
asked by
Sidra
719 views
Solve Graphically the following simultaneous linear equations
5x+7y=13 7x+6y=3
6 answers
asked by
Sidra
1,218 views
How fast was Calvin driving if he covered 50 km in 45 minutes? Round off your answer to the nearest whole number. Your answer
1 answer
asked by
Samkelisiwe Petunia Mthombeni
442 views
If 192;x;y;3 form a geometric progression, calculate the value of x and y.
3 answers
asked by
Zikhona
552 views
A concrete path of width 1m and thickness 10cm is to be placed around you pool. Find the number of cubic meters of ready mixed
1 answer
asked by
Dan
503 views
F:x 2*-1 meaning two to the power ex minus one please help with drawing the graph
3 answers
asked by
Kayceee
461 views
Help me plot 2* -1
3 answers
asked by
Erdmuth
298 views
How do you measure 55 degrees in angles
3 answers
asked by
Jada
517 views
I'm done with this question..Can anyone help me?
tan^-1(yz/xr) + tan^-1(zx/yr) +tan^-1(xy/zr) = pi/4 Prove that x^2+ y^2+ z^2=r^2
4 answers
asked by
Suhail
1,460 views
Factorizing of trinomials
1 answer
asked by
Naveena
327 views
Suppose that the reliability of a HIV test is specified as follows:
Of people having HIV, 90% of the test detect the disease but
1 answer
asked by
Sam
886 views
In a class of 39 pupils, 1/4 of the girls wear spectacles and 2/3 of the boys wear spectacles. A total of 16 pupils in the class
2 answers
asked by
Vincent
540 views
There are 50 students in a class of which 40 are boys and the rest are girls
the average weight of the class is 44kg and the
5 answers
asked by
priya
2,660 views
Paul travels from Rye to Easton at an average speed of 90km/h. He travels for T hours.
Mary makes the same journey at an average
2 answers
asked by
Anonymous
635 views
Sue,Martin and Lucy have £1180 in the bank shared between them in the ratio 16:23:20. Marvin takes out £100 and Lucy puts some
4 answers
asked by
Damian Donarski
749 views
I must come up with an maths model to solve this... Sally is baking some biscuits for a party. It takes 5/6 of a cup of mixture
3 answers
asked by
Sarah
398 views
1. In the xy-coordinate plane, point A is the midpoint of the segment with endpoints (2,4) and (-4,-4). What is the distance
3 answers
asked by
Lina
1,009 views
What is the simple interest for the loan $500 with a 6% interest rate for 10years?
3 answers
asked by
Harish
405 views
Ann bought 5/8kg of tomatoes to make a salad dish.2/5 of the tomatoes were rotten and the rest were fresh.What was the mass of
3 answers
asked by
Asha
1,079 views
Nitin made some origami animals 5/8 of them were cranes and 1/6 of the remainder were frogs the rest were grasshoppers what
3 answers
asked by
Asha
791 views
ann bought 5/8kg of tomatoes to make a salad dish 2/5 of the tomatoes were rotten and the rest were fresh what was the mass of
1 answer
asked by
Asha
457 views
Here is a list of what you need to make 20 buns:
- 100g butter - 150g flour - 200g sugar - 4 eggs Work out what you need to make
4 answers
asked by
anonymous
1,002 views
How to find an angle using measurements
1 answer
asked by
Paige
287 views
please help -
lisa had a collection of stamps from australia, france and japan. she had 124 stamps from australia. 30% of the
4 answers
asked by
J.sarah
1,348 views
I am less than 500 . I am divisible by 11 and 5. I have three digits. The sum of my digits is 14.
1 answer
asked by
Geriy
349 views
What is the income when saving = 1870
And expenditure =83% of income
1 answer
asked by
Md.ayaan islam
317 views
Two flares are launched from a life raft. The height h of the first flare in metres above the sea is modelled by the formula h1=
1 answer
asked by
Baz
451 views
A manufacture finds the total cost "C" for a product is expressed by C=3x2-8, and the total revenue "R" by R=3x-2, where x is
4 answers
asked by
Maths urgent!
548 views
Please help...
The ratio of the number of boys to that of girls in Class A is 2 : 3. The ratio of the number of girls who wear
2 answers
asked by
JJJ.Sara
489 views
Virti had 600 rupees. She spent 2/3 on buying a t-shirt and 1/5 of remaning money
on buying hair clips. With how much money is
2 answers
asked by
Piyush
534 views
I can`t to find information about, who invented simultaneous equations ?Could somebody help me please.
3 answers
asked by
Kinga M.
417 views
A movie theatre seats 200 people. For any particular show, the amount of money, m, the theatre makes is a function of the number
3 answers
asked by
Rick
1,868 views
Does anyone know who invented simultaneous equations? Signed by Kinga M.
2 answers
asked by
Kinga M.
496 views
Marks worth is A 1 B 2 C 2 Please explain next to it though how you got that answer and what to write to get that mark. Clearly
1 answer
asked by
Todayneededplz!
358 views
Marks worth is A 1 B 2 C 2 Please explain next to it though how you got that answer and what to write to get that mark. Clearly
3 answers
asked by
URGENTPLZANSWERNOW!
382 views
Ranee keeps £360 in a savings account for a year. At the end of the year she gets £13.50 in interest.Work out the interest
6 answers
asked by
Stephen
334 views
In a sale of electrical equipment, the price of all goods is reduced by .
Work out the sale price of the following. a A DVD
7 answers
asked by
Stephen
567 views
A football match between United and City is watched by 24 000 spectators.
Of the 24 000 spectators, 14 112 support United and
6 answers
asked by
Stephen
504 views
Three consecutive terms of a Geometric Progression are ? 6, p and ? 32 . find the value of p.
1 answer
asked by
James
441 views
Four non coplanar points are given. How many boxes have these points as vertices?
1 answer
asked by
Ganga bhowmick
409 views
A pool is 12m long and 7m wide it is surrounded by a 3m paved area on all sides the whole complex is enclosed by a 2m high fence
2 answers
asked by
Peter
550 views
11:58 is 3 mins slow. 12:05 is 3 mins fast. Which is the correct time?
1 answer
asked by
Hannah
341 views
Please help....
The figure is not drawn to scale. It shows two squares. the total area of two squares is 65 sq cm. the length of
3 answers
asked by
JJ.Sarah
535 views
The angle of elevation of the top of a house from the bottom of a tower 160m high is 26.from the top of a tower the angle of
3 answers
asked by
Dami
504 views
Six friends sat around a circular table. Ann (who is the the banker) sat opposite the consultant. Bob sat opposite Fred. Celia
2 answers
asked by
Anonymous
710 views
A solar heater with a collector area of 58.0 m2 is required to heat 2560 kg of water.
Under the same conditions, how much water
1 answer
asked by
Linda
461 views
Anyone, please help:
The figure below, not drawn to scale is made up of a square, a rectangle and a triangle, 1/6 of the square
4 answers
asked by
JJJ.Sarah
1,244 views
A total of 80 pupils take part in a mathematics test and the average score was 69 marks. Given the average score of the boys was
3 answers
asked by
Isarah
488 views
Given the equation y=2x-4 of an exponential function f
1)write down the equation of horizontal asymptote of f 2)determine the y
3 answers
asked by
Anonymous
1,908 views
Simplify 2/5 Of 8/4 + 3/9 / 2/8
1 answer
asked by
Patience
323 views
theo invests £800 in an account that pays 2% simple interest each year
how much interest is earned in a year how much there will
2 answers
asked by
Shreya
512 views
How would you work out sin(18pi/5.86) algebraically?
1 answer
asked by
Lauren
296 views
Have a question on complex numbers.
Z1= 1+j2, Z2= 2+j5 Find total impedance in Cartesian and polar form of two impedances in
2 answers
asked by
Danny
1,239 views
Which variable (out of water temperature, air temperature, barometric pressure, residuals, adjusted residuals, wind direction,
2 answers
asked by
Lauren
496 views
From looking at a periodic function, we had to decide on the equation for it. I got:
y = 1.05 sin x2pi/11.72 + 1.55 1.05 is the
5 answers
asked by
Madi
516 views
From looking at a periodic function, we had to decide on the equation for it. I got:
y = 1.05 sin x2pi/11.72 + 1.55 1.05 is the
3 answers
asked by
Madi
512 views
A cylinder lenght 13cm and radius 5cm is made of cardboard .use the value of 3.1 py at (a) a closed cylinder (b) a cylinder open
2 answers
asked by
Bright
562 views
What is the daily interest rate for the following amount: $598 for 186 days at 7.75% APR
5 answers
asked by
Michele
381 views
What is the diameter of a wheel which covers 1,2 km in 480 revolutions
1 answer
asked by
Tino-Thapz
326 views
Standing on top of a slope of 5 degrees, i see the top of a building and an angle of elevation of 35degrees15'. i am 160cm tall
3 answers
asked by
R
645 views
I need ghana lotto equation
2 answers
asked by
DAV
727 views
if cosA= -1/2 and π<A<3π/2 then find the value of 4tan^2A-3cosec^2A ?
1 answer
asked by
Rishav
435 views
Log10y+2log10x=2,express y in terms of x
5 answers
asked by
Shanaya
2,604 views
A rectangular room is 3m longer than it is wide.
It costs 364 pounds to carpet the room. Carpet costs 16 pounds per square metre.
3 answers
asked by
Naya
758 views
A cylindrical tank has the dimensions a 100cm and 140cm ,if the tank is filled with 275 liters of water what is the depth of
2 answers
asked by
Andre
519 views
what are the strengths/advantages of a sine function?
4 answers
asked by
Tayla
467 views
Bobbt jannet made jam from 8kg strawberries and 4 kg sugar, how much did it cost to make 1kg of jam if 1kg of strawberries cost
1 answer
asked by
Nicold
379 views
Please help,
John has some cookies. If he gives each of his friends 5 cookies, there is no remainder. If he gives each of them 3
2 answers
asked by
A.Ara
610 views
Evaluate the following by factorization
59*59-41*41
3 answers
asked by
wajiha
496 views
The price of a pair of shoes is increased by 12% . If the present price of the pair of shoes is 896 rupees , then find its
4 answers
asked by
Zoya
2,317 views
The adjacent sides of parallelogram are 26cm and 28cm and one of its diagonal is 30cm. Find the area of the parallelogram by
5 answers
asked by
Meera
2,673 views
The age of two children are 11 and 8 years in how many years him will be the product of their age be 208
1 answer
asked by
Silver
336 views
Prove that Sin^2(20)+sin^2(40)+sin^2(80)=3/2
4 answers
asked by
Kasumi
1,156 views
A ball is dropped from a height of 80ft.The elasticity of this ball is such that it rebounds three-fourths of the distance it
3 answers
asked by
Lynn
2,188 views
How much pure alcohol has to be added to 400ml of a solution containing 15% alcohol to change the concentration of alcohol in
3 answers
asked by
Taylor
544 views
Find the first four terms in the binomial expansion of (1+x)^(1/5) and state the range of values of x for which this expansion
4 answers
asked by
Lynn
3,058 views
Find the first four terms in the binomial expansion of (1+x)^(1/5) and state the range of values of x for which this expansion
4 answers
asked by
Lynn
2,465 views
A ball is dropped from a height of 80ft.The elasticity of this ball is such that it rebounds three-fourths of the distance it
2 answers
asked by
Rainie
770 views
Find the terms as stated: (x-1/x)^6 constant term
4 answers
asked by
Rainie
305 views
A water tank has the shape of a rectangular prism of base 50 cm2. This tank is being filled at the rate of 12 liters per
2 answers
asked by
Elise
984 views
a box contains 3 black balls , 7 white balls and 5 red balls . one ball is lost . the probability that a red ball is drawn is
2 answers
asked by
Mona
469 views
X, Y and Z in that order throws a tetrahedral die the first throws a 4 wins. The game continues indefinitely until someone wins.
1 answer
asked by
Iddi Yakubu Jekob
412 views
A ruler is 10 cents more than a pencil. If 2 rulers and 5 pencil costs 3.70 dollars, how much is the cost for a single pencil?
3 answers
asked by
Jones
497 views
3 inlet pipes A,B and C can be used to fill 1000m^3 water storage tank . When 3 pipes are in operation,the tank can be filled in
2 answers
asked by
Rainie
753 views
A rectangle has area 6 cm^2 and diagonal length 2 square root 5cm. What is its perimeter
3 answers
asked by
Liam
535 views
Two trains, Aand B , leave a train station at the same time but in different directions, one towards east and the other towards
2 answers
asked by
Jones
823 views
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