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Maths
Page 17
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Express each of the following in the form Rsin(x+a), where r>0 and 0< a <2pi
(a) 5cosx + 12sinx (b) 12cosx + 5sinx
4 answers
asked by
Annicka
1,447 views
Greg and Martin's age when added together come to a total of 60 years. Now Greg is twice as old as Martin was when Greg was half
2 answers
asked by
Steve
514 views
Find The altitude of a right circular cone of maximum curved surface which can be inscribed in a sphere of radius 'r'.
1 answer
asked by
Sam
655 views
if in a triangle ABC m angle A=π/2, then value of cos2 A + cos2 B + cos2 C =?
1 answer
asked by
Anand
387 views
P(2q-5)
Where. P= -2 q= 3
3 answers
asked by
Anonymous
208 views
A bouncy ball bounces 16m on its first bounce and then 8m on the second bounce. Each time it bounces the height halves. How high
2 answers
asked by
Jack
476 views
How can we find the antilogarithm of 9.485?
1 answer
asked by
Charles
242 views
What is the present value of a 6 month Certificate at a simple interest rate at 14% compounded monthly?
1 answer
asked by
Shervonne Hollis
286 views
If eight 5p coins weigh 26g how much does three 5p coins weigh?
1 answer
asked by
Brooke
310 views
In a swimming race, you find that a swimmer can swim downstream (with the current) in a river, 2 miles in 40 minutes, & upstream
2 answers
asked by
Mir Aman
609 views
Stephanie had 24 more stickers than Jolene. Stephanie gave half of her stickers to Jolene. Jolene in return gave half of what
3 answers
asked by
RS
412 views
An arithmetic and a geometric sequence have the same first terms.(2)....and the same second term say X..The sum of the first 3
3 answers
asked by
Lucas
1,085 views
Eric thinks of 2 sequences.One is geometric and the other arithmetic.Both sequences start with the number 3.The common ratio of
4 answers
asked by
Lucas
795 views
If n=5 and r=1 (1+b)=10a,determine b in terms of a
6 answers
asked by
Lucas
307 views
In a regular polygon,each interior angle doubles its corresponding exterior angle,find the number of side of the polygon?
2 answers
asked by
Guru
588 views
Thato caught 4 snails and placed them all in the same small circle on the ground and organised a race......1st snail travelled
3 answers
asked by
Lucas
473 views
Su Mei bought 3 apples for $2n. How much did she have to pay for 18 apples?
2 answers
asked by
Zayn
902 views
Machine X can pack 3 crates of bottles and Machine Y can pack 4 crates of bottles within the same time. In half an hour, Machine
2 answers
asked by
Zayn
486 views
Determine how long in years it will take the value of a motor vehicle to decrease to 25% of its original value if the rate of
3 answers
asked by
Lucas
433 views
Rs 10000 from 8th may to 26 november 10% ?
2 answers
asked by
jaggi
801 views
Explain prisms
1 answer
asked by
Anonym
283 views
A farmer deposits R11 944, for 60 months to buy a tractor.suppose that 12 months afta the purchase of the present tractor and
1 answer
asked by
Lucas
452 views
They were 336 people at a concert.if 2/3 were childre,how many chairs were needed for the adults?
3 answers
asked by
Siphosethu
440 views
The two digits of a 2-digit number add up to 16. The smaller digit is in the ones place. What is the number
1 answer
asked by
Zen
353 views
The ratio John's age to Ryan's age is 3:1 now . 25 years later , the ratio will become 4:3 .How old is John now ?
1 answer
asked by
Jordan
447 views
The ratio John's age to Ryan's age is 3:1 now . 25 years later , the ratio will become 4:3 .How old is John now ?
1 answer
asked by
Jordan
323 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
1 answer
asked by
Anonymous
437 views
Solve the equation:a right pyramid with vertical height stand on rectangular base widith that measures 20cm by 14cm the hieght
1 answer
asked by
Thomas
1,017 views
Siuan's grandmother recently signed up for a twitter account. She only follows five people - her five grandchildren. Each day,
3 answers
asked by
John
402 views
R=square root of u squared plus v squared divided by m and u and v are positive.Find u when r=3,v=6 and m=5
1 answer
asked by
John
346 views
R=square root of u squared plus v squared divided by m and u and v are positive.Find u when r=3,v=6 and m=5
3 answers
asked by
John
379 views
find range for g(X)= -cos4x
2 answers
asked by
Ray
928 views
How do you figure out the diameter of the base of a truncated cone with the measurement of the leaning side and the diameter of
1 answer
asked by
Elise
344 views
If cos A=3/5 and A is acute,find sin A,tan A,and sec A.
1 answer
asked by
Shane
336 views
Two number LCM is 495 & Two number HCF is 5. When we do Plus those number we find 100 number what diffrance bitween those
3 answers
asked by
Pawan Choumal
1,224 views
L=2x-1
W=x+3 Area =294cm find length and with of rectangle
3 answers
asked by
Kay
858 views
What is the nth term and the next two terms of the following: (a) 0^1,2^2,24^3,252^4. (b) 1,1,2,4,7,13,24. (c) 0,1,2,3,6,11
1 answer
asked by
Very urgent please
1,146 views
What is d nth term and d last two terms of d sequence: (a) 0^1,2^2,24^3,252^4. (b) 1,1,2,4,7,13,24. (c) 0,1,2,3,6,11
1 answer
asked by
Very urgent please
309 views
For this question, use the copy of the Random Number table provided at the end of this AAT. (This table was
copied from page 111
1 answer
asked by
Anna
407 views
Please help me solve this differential equation : x^3+ ¡¼(y+1)¡½^(2) dy/dx=0
3 answers
asked by
Taldil
336 views
Please help me solve this differential equation: dy/dx-(1+1/x)y=y^2
3 answers
asked by
Taldil
313 views
Please help me solve this differential equation: dy/dx+ytanx=y^3¡¼sec¡½^4x
1 answer
asked by
Taldil
386 views
A straight river flows at a speed of 20km/h. A boater starts at the south shore and heads in ths direction of 70degrees from the
2 answers
asked by
Anonymous
1,244 views
In a quadratic sequence.....Term 2 is 11,Term 4 is -7,term 7 is -64....determin the general term for the sequence
4 answers
asked by
Lucas
414 views
(a) find d largest four digit number which has a total of exactly 3 factors. Assuming that one and the number itself are
1 answer
asked by
Very urgent please
944 views
(a) find the largest four digit number which has a total of exactly 3 factors. (b) find a and b greater than zero such that a^2
1 answer
asked by
Very urgent please help me solve
303 views
In a basket of 24 mangoes 1/3 were yellow 5/8 were green and the rest were orange.
1. what fraction of the mangoes were green and
3 answers
asked by
Chamiqueko
378 views
In a basket of 24 mangoes 1/3 were yellow 5/8 were green and the rest were orange.
1. what fraction of the mangoes were green and
1 answer
asked by
Chamiqueko
349 views
How many ordered triples of positive integers (a,b,c) with 1<=a,b,c<=5 are there such that ax^2+bx+c has a rational solution?
2 answers
asked by
Don
562 views
Help me rearrange this equation, v=20-9.8t
1 answer
asked by
Gerad
311 views
The sum of two whole number is 23.The different between them is 5.What is the smaller number?
1 answer
asked by
Zen
331 views
The sum of two whole number is 23.The different between them is 5.What is the smaller number?
1 answer
asked by
Zen
319 views
The width of a rectangle is 12 units less than its length. If you add 30 units to both length and width, you double the
1 answer
asked by
Nkuna sizwe
397 views
The width of a rectangle is 12 units less than its length. If you add 30 units to both length and width, you double the
3 answers
asked by
Nkuna sizwe
562 views
In angle ABC,angle A=angle B=32degree and AB=108 mm,find the perpendicular height from C to the baseAB.
3 answers
asked by
Shane
495 views
A farm rears 9 ducks and cows in his farm. There are 28 legs altogether.How many ducks are there in the farm?
2 answers
asked by
Anonymous
493 views
Chris spent 1/4 of his money to buy shirt .He spent 1/2 of remaining money to buy shorts.Given that Chris had left $56 left. How
3 answers
asked by
Sammi
586 views
The top of a T .V .tower casts a shadow 35 metres long when the angle of elevation of the sun 57 degree40 minutes.How high is
2 answers
asked by
Shane
550 views
From a point on a lighthouse 76 metres above sea level,the angle of depression of a fishing boat 28 degrees.How far is the boat
2 answers
asked by
Shane
473 views
A tyre manufacturer has chosen 48 tyres at random from a production line and issued them to taxis for testing. Assume that the
1 answer
asked by
Anna
417 views
A tyre manufacturer has chosen 48 tyres at random from a production line and issued them to taxis for testing. Assume that the
3 answers
asked by
Bella
451 views
data with mean of 32, standard deviation of 1.2, What is the 99th percentile score?
1 answer
asked by
Enoch
307 views
How many ordered pairs of solutions (a,b) are there to:
a-b=2 where, a and b lie between [-100,100]
2 answers
asked by
Adithyan
1,041 views
ABC is a right angled triangle with ∠ABC=90∘ and side lengths AB=24 and BC=7. A semicircle is inscribed in ABC, such that
4 answers
asked by
Stranger
1,033 views
Let 3^a be the highest power of 3 that divides 1000! . What is a ?
1 answer
asked by
John
570 views
Ray and Roxanne leave from the same spot for their morning run. Roxanne runs due North at 8 km/h while Ray runs due East at 11
1 answer
asked by
Caroline
436 views
P, Q and R are three towns. Q is 40 km N 72°E of P and R is 48 km S 55° E of P. Find the distance and bearing from Q to R.
1 answer
asked by
Brooks
410 views
What is the highest power of 3 that divides 1000! (1000 factorial)
3 answers
asked by
Anna
1,180 views
The mean distance of the sun from the sun is 150 million kilometres.Express this in scientific notation.
1 answer
asked by
Ankur
385 views
The mean distance of the sun from the sun is 150 million kilometres.Express this in scientific notation.
1 answer
asked by
Ankur
433 views
Suppose that a boat moves in a straight line with speed v through water with resistance proportional to the square of its speed
1 answer
asked by
James
404 views
Solve for X: log4(3x-7)^2 = 10
2 answers
asked by
Jeconiah
1,243 views
Solve for x: 6log(x^2 +1) - x = 0
3 answers
asked by
Jeconiah
905 views
Slove for x: ln (x^2 -6x -16) = 5
1 answer
asked by
Jeconiah
430 views
Simplify the following: (54^1/4)/ (6^3/4)(12^-1/2)
1 answer
asked by
Jeconiah
241 views
Find the vakue of x: (1)logx2 = 2 (2) log3x^2 = -1
1 answer
asked by
Jeconiah
440 views
The value of y that minimizes the sum of the two distances from (3,5) to (1,y) and from (1,y) to (4,9) can be written as a/b
1 answer
asked by
John
409 views
What is the sum of all integer values of n satisfying 1≤n≤100, such that n2−1 is a product of exactly two distinct prime
3 answers
asked by
Ian
402 views
Let f be the function defined as f(x)=x2 in the domain [−7,+7]. The range of f(x) is [a,b]. What is the value of a+b?
1 answer
asked by
Ian
268 views
What is the sum of all integer values of n satisfying 1≤n≤100, such that n2−1 is a product of exactly two distinct prime
1 answer
asked by
Ian
453 views
What is the sum of all integer values of n satisfying 1≤n≤100, such that n^2−1 is a product of exactly two distinct prime
1 answer
asked by
Ian
350 views
Given tanθ=−4/3, where π/2<θ<π, what is the value of 1/(sinθ+cosθ)?
3 answers
asked by
Ian
382 views
How many integers satisfy the inequality
∣10(x+1)/(x^2+2x+3)∣≥1?
2 answers
asked by
Ian
946 views
Let f be the function defined as f(x)=x^2 in the domain [−7,+7]. The range of f(x) is [a,b]. What is the value of a+b?
1 answer
asked by
Ian
287 views
a and b are digits such that 120ab¯¯¯¯¯¯¯¯ is a multiple of 3, 5 and 7. What is the value of ab¯¯¯?
Details and
1 answer
asked by
Ian
339 views
Let f(x)=x^2 -1 . How many distinct real roots are there to f(f(f(x)))
1 answer
asked by
Anna
272 views
During the month of January, temperatures can decrease by 18° per week. If this happens, and the temperature on January 12th
2 answers
asked by
Sanya
743 views
For a Chinese New Year celebration, James and Zhou are making a dragon costume similar to the one shown above.
In total, the
2 answers
asked by
Sanya
914 views
Show proof of deriving the Quadratic Formula from the Quadratic Equation ax^2 + bx + c = )
2 answers
asked by
Jeconiah
504 views
Show proof of deriving the Quadratic Formula from the Quadratic Equation ax^2 + bx + c = O
2 answers
asked by
Jeconiah
865 views
How many ordered sets of positive integer triples (a,b,c) are there such that a+b*c=100
3 answers
asked by
Mary
463 views
The vertices of a cube are labeled with the numbers 0,1,2,3,4,5,6 and 7, such that no two vertices are labeled with the same
1 answer
asked by
Mary
383 views
Suppose Z=a+bi , where a and b are integers and i is the imaginary unit. We are given that |1+iZ| = |1-iZ| and |Z-(13+15i)|<17 .
1 answer
asked by
Mary
305 views
Find the value of x: (2x-1)/(x+1)=2x/(x-1)-(5/x)
3 answers
asked by
Seth
251 views
The dimensions of rectangle B are twice the dimensions of rectangle A. The area of rectangle B is 200 cm2.
What is the area of
3 answers
asked by
Sanya
527 views
How many ordered quadruples of distinct positive integers (a,b,c,d) are there such that 1/a+1/b+1/c+1/d=1?
2 answers
asked by
Ayush
466 views
Using the exact trigonometric ratios of 45 degree,30 degree and 60 degree,evaluate the following,leaving where necessary your
2 answers
asked by
Shane
613 views
An aeroplane flies due north for 200 km and then turns due east and flies for a further distance of 325km. Find the bearing,to
2 answers
asked by
Shane
760 views
How many ordered quadruples of distinct positive integers (a,b,c,d) are there such that 1/a+1/b+1/c+1/d=1?
1 answer
asked by
Ayush
438 views
Find all the values of theta between 0 degree and 360 degree, and state the quadrants in which they exist. (a)cos theta=-0.71
2 answers
asked by
Shane
689 views
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