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Maths
Page 16
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45% is 28
100%=? Please show me the concept and the working out as well please
1 answer
asked by
Jiskhaa
313 views
I can't understand this math problem....
Please help me.... ------------------ Problem: In a boys' school, 5/8 of the boys play
3 answers
asked by
John
1,883 views
M squared is greater than or equal to 36
How to find m I only have one set of answers for m and that is m is greater than or
2 answers
asked by
Jiskhaa
835 views
On August 1, 2011 Blancard Inc. Issued $250,000 of 10%, seven year bonds. Interest is to be paid semi-annully. Calulate the
1 answer
asked by
Jessica
385 views
X squared-(k+3)x+4k=0
Please help me find the value of k for which there are equal roots but of opposite sign Working out please
1 answer
asked by
Jiskhaa
426 views
Find the angle between the hour-hand and the minute-hand in circular measure at half past 4?
2 answers
asked by
Ajay pratap
1,135 views
A hemispherical paper is folder into a hallow right circular cone. The radius of the hemispherical paper is 12cm. What's the
1 answer
asked by
Dickson
433 views
Two thirds of a pizza is shared between 5 friends bob eats twice as much as any of the others. What fraction of the pizza does
4 answers
asked by
Lockie
704 views
A ladder is 12 metres and leans against a tall wall. The foot of the ladder is 9 metres from the base of the wall. How far up
1 answer
asked by
Laurena
401 views
Prove that any two sides of a triangle are together greater than twice the median drawn to third side.
1 answer
asked by
Anupam khatiwara
307 views
In two right angeled triangles, one sides and acute angle of one triangle are equal to one side and the corresponding acute
1 answer
asked by
Anupam khatiwara
439 views
3 2
If 3x+ax+bx+4 has x+1 as factor and leaves remainder 2 when divided by x-1, find the value of a and b.
2 answers
asked by
Anupam khatiwara
812 views
The population P of a particular city, Metropia, is growing at a rate proportional to the current population.
The population at
1 answer
asked by
Nina
434 views
If Q(x)=x^2 for x less than or equal to 1
=ax+b for 1<x<2 = x^2-5 for x greater than or equal to 2 Find the values of a,b if Q(x)
1 answer
asked by
Jiskhaa
340 views
Find the equation of the locus of the point P(x,y) which moves so that it's distance from the point (0,3) is equal to its
1 answer
asked by
Jiskhaa
408 views
explain subtraction steps
2 answers
asked by
Athrva
792 views
6%pa compounded semi-annually
Principal-$6000 I need to find out how many interest periods for the amount to grow to $9500. What
1 answer
asked by
Helen
393 views
What steps were taken to get px-2x^2 to be p-4x??
I can't work out what happened to the 'x' after 'p'. I can see that 2x^2 equals
3 answers
asked by
Cara
334 views
A drinking straw of length 21cm is cut into 3 pieces the length of the first piece is x cm the second piece is 3 cm shorter than
2 answers
asked by
RAHEIM
626 views
A garage bought 55000 litres of petrol for 86 pence a litre and sold it for 96 pence a litre calculate how much garage paid for
1 answer
asked by
Adam
428 views
There are 40 pupils in a class. There are 10 more boys than girls. When some boys from another class join the class, the
2 answers
asked by
urgent help needed pls
1,136 views
A pack of 50 blank recordable cd's has a mass of 0.8g. The packaging has a mass of 80g. What is the mass of one CD?
1 answer
asked by
piripismum
328 views
Solve this using elimination method: 4x-3y=-4
2 answers
asked by
Jeconiah
453 views
If (x-k, where k is integral, is a factor of the polynomial P(X)=2x3-3x2-12x-7, what possible values may k have?
Working out
1 answer
asked by
Jiskhaa
380 views
HOw to calculate CFT of the wooden box?
1 answer
asked by
Dhilsath
345 views
Edward has $40 more thanFariq. If Edward gives 1/5 of his money to Fariq. Fariq will have7/8 as much money as Edward. How much
2 answers
asked by
RS
716 views
Mrs.Lee poured 400 ml of water in a rectangular container with a square base.The square base's area is 40 cm2.What is the height
1 answer
asked by
XL
467 views
whats the probability of gatting a matching pair of socks if there are 8 gree and 10 blue
2 answers
asked by
callum
577 views
f (x) = x2 - 4/ x2 - 1
This needs to be plotted onto a graph, but I don't know how
1 answer
asked by
Josh
257 views
the distance, s metres, traveled by a car in t seconds after the brakes are applied is given by s=10t -t^2. Show that it's
2 answers
asked by
Marney
610 views
If X=(2+√5)1⁄2 + (2-√5)1⁄2 and Y=(2+√5)1⁄2 - (2-√5)1⁄2 ,the evaluate x^2+ y^2
3 answers
asked by
Gulshad Khan
266 views
A give an example of a function whose domain equals the set of real numbers and whose range equals the set?
the set {-1,0,1}
1 answer
asked by
fatima
1,248 views
A rectangular block that is 12 cm x 8 cm x 5 cm is made by stacking individual centimeter cubes into the formation. The base of
1 answer
asked by
Gracias
800 views
In how many whole numbers between 100 and 999 is the middle digit equal to the sum of the other two digits?
10 answers
asked by
Biscuit
3,884 views
a cylindrical tin with one end opened has diameter of 440mm and height 50mm.What is the total surface area
4 answers
asked by
Nathaniel Graham
706 views
Integral of 1/root(2x-x^2)dx
3 answers
asked by
Sam
266 views
What is the integral of:
1/root(2x-x2)
1 answer
asked by
Sam
297 views
Calculate the density of earth given that its mass is 5.98x10^24 kg and volume is 8.78x10^8 m/s
1 answer
asked by
Beth
388 views
What Is The closure of the set {cos1,cos2,cos3,cos4,...} under usual topology????
1 answer
asked by
Itrat Abbas Mirza
360 views
How to do factorise ? What is Factorise ? Give me some examples ,please . Thank you !
2 answers
asked by
Kim
968 views
The ratio of the number of coins Azam had to the number of coins Eddie had was 3:7. Eddie gave 42 coins to Azam and they ended
3 answers
asked by
Zayn
507 views
Tina and Gopal had some stickers in the ratio 2:3. Gopal gave half of his stickers away and the ratio became 4:3. If Gopal had
3 answers
asked by
Zayn
861 views
(i)51 (ii)17.8
1 answer
asked by
Pipipapoo
187 views
A sum of money is shared between Alice, ah and Sita in the ratio 3:2:4. If ah receives $4287.50, how much money do Alice and
1 answer
asked by
Zayn
371 views
Find a three digit number so that when the digita of the number Are added together the total is one fifth of the product of the
2 answers
asked by
Izzy
625 views
Hi,
I am working on some Nth problems - can anyone tell me if this is correct :- Nth term sequence is n + 4 are the first three
3 answers
asked by
Andy
1,027 views
Keith and Shawn each have some money. If Keith spends $38, the ratio of the amount of money Keith has to the amount of money
2 answers
asked by
Daniel
565 views
Evelyn has a ribbon 420 cm long. She uses 216 cm to decorate a present., What percentage of ribbon is left> Express your answer
3 answers
asked by
Zayn
406 views
A jug contained 780 ml of mil. Mrs Li poured 221 ml of the milk into a glass and 130 ml into a cup. What percentage of milk was
3 answers
asked by
Zayn
590 views
The selling price of a pencil box was $4. Chee Keong bought the pencil box and paid $4.28 including GST. What percentage of milk
3 answers
asked by
Zayn
457 views
Mr Srinivasan invests $55 000 in a fixed deposit account. The interest rate is 3.3 % per year. How much money will he have in
2 answers
asked by
Zayn
483 views
Rahyu spent 2h 25 min in a library. She spent 30 min of the time reading newspapers. What percentage of her time in the library
1 answer
asked by
Zayn
371 views
CORRECTION.
The selling price of a pencil box was $4. Chee Keong bought the pencil box and paid $4.28 including GST. What
3 answers
asked by
Zayn
841 views
A school has 1800 pupils. 55% of the pupils are girls. 30% of the girls and 70% pf the boys travel by bus.
a.) How many girls
2 answers
asked by
Student56
605 views
3 boys, Aaron, Benny and Charles, share a sum of money. Aaron receives 40% of the sum of money. Benny receives 3 times as much
3 answers
asked by
Student56
1,120 views
in sequence 4,7,10,13....
PROVE the difference between squared of any two terms is a multiple of 3
3 answers
asked by
Bap
939 views
7y = 49w - 35 I am not sure how the working out goes
3 answers
asked by
Paula
795 views
I got the last question so please don't worry..
These are the ones I get confused with. 7y +21 x - 15 = 4y- 12 + 13 I need to see
1 answer
asked by
Paula
401 views
There are 36 pupils in a class. Each girl is given 8 books and each boy is given 3 books. The total number of books the girls
4 answers
asked by
Max
1,252 views
In triangle PQR, |PQ|= 7 cm, |QR|=5 cm and |<QPR|= 43 degrees Find, correct to one decimal place, the value, or values, of
2 answers
asked by
Anonymous
468 views
For y= 2x squared + x - 1 the x-intercepts and the turning point respectively are?
2 answers
asked by
Charlie
764 views
Question: I graphed
-2x+y=-6 Y=-(1/3)x+1 & w/ the options No Solution, Infinante Solutions, or ( , ) I found the answer is (3,1)
1 answer
asked by
ArthurK
446 views
Three boys shared some cards. Peter had twice as many cards as Farid. The ratio of the number of cards Peter had to the number
1 answer
asked by
Lance
431 views
A room is 3 meters wide and has a volume of 60 cubic meters.calculate the floor of the room
3 answers
asked by
Eri berry
442 views
If a no. Is doubled and the result is increased by 8,we get 40.what is the no.?
Gve me ful sltn plz and ans is 16
3 answers
asked by
Simran kaur
384 views
Two no. are in the ratio 5:8. If the sum of the no. is 195.find the no.
Ans is 75 nd 120 plz gve me sltn
1 answer
asked by
Simran kaur
311 views
A no. Plus two-third of itself plus one half of itslf plus one-seventh of itslf equals 97.find the no.
Ans is 42
3 answers
asked by
Simran kaur
337 views
Find three no. Such that,the 2nd is twice the 1st,the 3rd is three times the first and their sum is 180.
Ans is 30,60,90
7 answers
asked by
Simran kaur
465 views
The numerator of a fraction is less than its denominator is increased by 9 and the numerator by 2,the fraction bcms
1 answer
asked by
Simran kaur
358 views
Let f(x) = tan(x). What is the formula for the conditioning number of f?
Evaluate this formula for x =(π/4), 1.01, 1.26, 1.51
1 answer
asked by
John
319 views
Let f(x) = √(x^2 + 1) - 1 (taking the positive real square root, as usual).
When x = 10^-3, compute f(x), working to 5
1 answer
asked by
Jade
347 views
The sum of 5 numbers is p. If each number is increased by 40, what is the new sum of numbers?
1 answer
asked by
Javier
320 views
There were 40 members in a hockey club. 3/8 of them were girls. When more girls joined the club, the percentage of the number of
2 answers
asked by
Javier
588 views
There are a total of 70 pebbles in Bag A and Bag B. There are a total of 120 pebbles in Bag B and Bag C. Bag C contains 3 times
1 answer
asked by
Javier
364 views
Gerry earns $0.60 for every canned drink he sells. He earns an extra bonus of $5 for every 20 cans he sells. How many cans does
3 answers
asked by
Javier
458 views
Find domain and range of 11-7 sin x
4 answers
asked by
Vaibhav nigam
2,114 views
1)how do you simplify 3xcos5x using trigometric functions
2)how do you simplify sin2xcos4x using trigometric functions
9 answers
asked by
JESS
401 views
Mrs Lim is m years old. She gave birth to her son when she was 20 years old. What will their total age be in 12 years' time?
2 answers
asked by
Jae
658 views
Find the derivatives of these:
f(x)=√
1 answer
asked by
alexis
321 views
Find the derivatives of these:
f(x)=(√(x))sinPix Also: f(x)=√(Cosx+sinx) Steps would be greatly helpful as I will be able to
3 answers
asked by
Alexis
443 views
3. Ohm’s law states that the current flowing in a circuit varies directly as the applied voltage and inversely as the
2 answers
asked by
David
898 views
show that the semi vertical angle of a right circular cone of a given surface area and maximum value is sin-1 (1/3)
1 answer
asked by
Marwein
833 views
A geographical globe has a radius of 18cm.find the radius of the circleformed by the parallel of latitude 56 degrees south.
3 answers
asked by
Tosin
718 views
in the following rings find all units, Zero divisors and idompotent elements and determine whether the ring is a field.
a)Z2 b)Z5
1 answer
asked by
JESS
430 views
A girl buys x magazines at 50p each and x-3 magazines at 40p each. She spends £6 in all. Find x?
3 answers
asked by
Sanji
775 views
Thanks steve for a brilliant answer! Got one last one which is gobbledegook to me.
Two functions f and g are defined by
3 answers
asked by
Saud
344 views
Thanks guys for your response!!!! x
I have another one. If the two functions f and g are defined by f:x --- 25/(3x-2) g:x --- x^2
1 answer
asked by
Nikki Clark
387 views
An aeroplane leaves a point on latitude 54degree south at 10 a.m. It flies due south at a steady speed of 800km/h.
(a) what is
4 answers
asked by
Tosin
1,405 views
Factorise X^2 - y^2 - 2x + 2y
1 answer
asked by
Kuo
379 views
Given the quadratic function y =3x^2+10x-8 (i)Find the y-intercept. (ii)Find the x-intercept. (iii) Calculate the axis of
1 answer
asked by
Shane
421 views
Solve for x,leave your answer in surd form. 2/x+2 + 3/x+1=5
3 answers
asked by
Shane
604 views
Point P(-8,-3)and Q(6,9)are joined by a straight line.Find the equation of the line joining the midpoint of PQ to the origin.
1 answer
asked by
Shane
427 views
State the x-intercepts of the graph of y=1-x^2
1 answer
asked by
Shane
307 views
what is 0.1 of 240
3 answers
asked by
HELPME!!!!!!!!!
351 views
An ice cream store sells 20 different flavors of ice cream and 3 different types of cones. How many different combinations of
5 answers
asked by
Pepa
2,819 views
12-12-12 multiply it by 3-2-3 respectively
1 answer
asked by
Rao Rafey
243 views
For each day of the 5-day working week Tom can choose any
one of 6 newspapers to read at the lunchtime. (i) How many different
1 answer
asked by
Jess 1
336 views
AB is a chord with centre O and radius 4 cm. AB is of length 4 cm and divides the circle into two segments. Find d area of minor
4 answers
asked by
Shruti katiyar
1,351 views
2equal sides of triangle r4m less than 3times the third side find the sides of triangle if perimeter is55cm
1 answer
asked by
Anonymously
422 views
Three circles are placed on a plane in such a way that each circle just touches the other two each having a radius of 10 cm.
3 answers
asked by
Shruti katiyar
602 views
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