Questions by partha - Math Homework Answers

1 answer

if a,b,c,d are four non-negative real numbers and a+b+c+d=1,then the maximum value of ab+bc+cd is = ?

asked Jan 17, 2016 in Word Problem Answers | 747 views

1 answer

(3x-3)^1/2=3^1-6x

asked Dec 21, 2015 in Algebra 2 Answers | 359 views

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if 3sinA+5cosA=2 then value of 5sinA-3cosA= ?

asked Jul 30, 2015 in Trigonometry Answers | 1.0k views

2 answers

29:71::79:------ ? what is the number inplace of dash ? it is a reasoning question.

asked Jul 30, 2015 in Other Math Topics | 4.6k views

1 answer

if cost of cultivating a rectangular field at the rate of rs 55per 100 sq.m is 1500.find the length of field, if the sides are in the ratio 4:3 ?

asked Jul 24, 2015 in Geometry Answers | 455 views

1 answer

if the roots of the equation 4B^2+AB-2= are of the form (k/k+1)+(k+1/k+2), then what is the value of A ? note-A means alfha and B means bita due to non availability of sign i write it as A and B.

asked Jul 24, 2015 in Other Math Topics | 717 views

1 answer

cos 360+cos 234+cos 162+cos 18 = ? note-numbers are in degree.

asked Jul 24, 2015 in Trigonometry Answers | 839 views

1 answer

what is the sum of first 50 terms of the series (1*3)+(3*5)+(5*7)+...............?

asked Jul 24, 2015 in Pre-Algebra Answers | 521 views

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Radii of two circles are 7cm and 3cm.if one of these lies wholly inside the other,then the distance between their centres is = ? options are-4cm,more than 5 cm,less than 4cm,none of these.

asked Jul 24, 2015 in Geometry Answers | 1.2k views

1 answer

Rahul had 200 mangoes.He sold 30 mangoes at 25% gain,40 mangoes at 20%gain,60 mangoes at 10% gain and 70 mangoes at 10% loss.His net gain or loss percentage is what ?

asked Jul 24, 2015 in Other Math Topics | 1.9k views

1 answer

A does half as much work as B,and C does half as much work as A and B together.if C alone can finish the work in 40 days,then all together will finish the work in how many days ?

asked Jul 24, 2015 in Other Math Topics | 570 views

1 answer

ABCD is a parallelogram with AB=10cm.The bisector of angle A meets DC in E,and is extended to meet BC produced at F. CF =???

asked Jul 22, 2015 in Geometry Answers | 639 views

2 answers

if tan 22 fill 1/2=x then cos 67 fill 1/2= ??

asked Jul 22, 2015 in Trigonometry Answers | 1.8k views

1 answer

if x not=1,f(x)=x+1/x-2 be a real function,find f(f(2))= ?

asked Jun 9, 2015 in Calculus Answers | 373 views

1 answer

log sqroot 6+ log sqroot 2/3= ? base of log is 2.

asked Jun 9, 2015 in Pre-Algebra Answers | 348 views

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A tree increase yearly by 1/6 th of its height.how much will it increase after 2years if its height is 12metre today ?

asked Jun 9, 2015 in Word Problem Answers | 429 views

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A and B can do a work in 3days,B and C in 4days,C and A in 4 days. the time taken by C alone to do it is ?

asked Jun 9, 2015 in Word Problem Answers | 402 views

1 answer

what is the total number of distinct terms in the expression (a+b+c)^15 ?

asked Jun 7, 2015 in Algebra 1 Answers | 471 views

1 answer

what is the number of terms in the expansion (a+b)^128 ?

asked Jun 6, 2015 in Other Math Topics | 397 views

1 answer

root cube(2+sqrt5)+root cube(2-sqrt5)= ??????

asked May 26, 2015 in Algebra 1 Answers | 475 views

1 answer

the external angle of a regular polygon is 30degree.its side number is?????

asked May 26, 2015 in Other Math Topics | 365 views

1 answer

64239 is divided by a certain number.while dividing the number 175,114 and,213 appears as three successive remainders.find the divisor ?

asked May 21, 2015 in Other Math Topics | 2.0k views