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Riya Shinde
Subject: Maths
, asked on 30/12/17
Please help me in solving Q3
$Chapter-Exponents.\phantom{\rule{0ex}{0ex}}\u2022Q.Simplifythefollowingu\mathrm{sin}gthelawsofexponents:\phantom{\rule{0ex}{0ex}}3.{a}^{7+2n}\times {\left({a}^{2}\right)}^{3n+2}$
Answer
2
Riya Shinde
Subject: Maths
, asked on 30/12/17
How to solve Q. 2 from the given pic?
Q. Simplify the following using the laws of exponent
$2.\sqrt[3]{{x}^{18}{y}^{-12}{z}^{3}}$
Answer
2
Aariya
Subject: Maths
, asked on 18/12/17
0.00001145 write in standrad form
Answer
3
Divyshree
Subject: Maths
, asked on 13/12/17
How we will do ques 4
Answer
5
Divyshree
Subject: Maths
, asked on 13/12/17
How we will do question no.24
Answer
2
Divyshree
Subject: Maths
, asked on 13/12/17
How we will do this
Q17. What is the simplified form of
${\left[\sqrt[3]{{\mathrm{x}}^{4}\mathrm{y}}\times \frac{1}{\sqrt[4]{{\mathrm{x}}^{2}}{\mathrm{y}}^{8}}\right]}^{-6}$
?
(A) x
^{5}
. y
^{10}
(B)
$\frac{{y}^{10}}{{x}^{5}}$
(C)
$\frac{{y}^{2}}{x}$
(D)
$\frac{{x}^{5}}{{y}^{5}}$
Answer
1
Divyshree
Subject: Maths
, asked on 13/12/17
Q What is the solution of
${3}^{3x-5}=\frac{1}{{9}^{x}}$
?
a) 5/2 b) 5 c) 1 d) 7/3
Q Evaluate
${\left(\frac{16}{81}\right)}^{\frac{3}{4}}$
Answer
1
Krishna Jha
Subject: Maths
, asked on 12/12/17
$Simplify\phantom{\rule{0ex}{0ex}}{\left[\frac{256{x}^{16}}{81{y}^{4}}\right]}^{-1/4}$
Answer
1
Spandan
Subject: Maths
, asked on 10/12/17
If (x+y)=10 and x cube+y cube=250 find the value of x and y ?
Answer
4
Ishaan Gupta
Subject: Maths
, asked on 1/12/17
Please answer these questions 49 and 50.
Answer
1
Ishaan Gupta
Subject: Maths
, asked on 1/12/17
Q. The average age of 30 students of a class is 14 years 4 months. After admission of 5 new students in the class the average becomes 13 years 9 months. The youngest one of the five new students is 9 years 11 months old. The average age of the remaining 4 new students is
(A) 11 years 2 months
(B) 13 years 6 months
(C) 10 years 4 months
(D) 12 years 4 months
(E) None of these 42.
Q. If x=a
^{1}
^{/2}
+ a
^{-1/2 }
, y = a
^{l/2}
— a
^{-1/2}
, then value of (x
^{4 }
- x
^{2}
y
^{2}
— 1) + (y
^{4}
— x
^{2}
y
^{2}
+ 1)
(A) 9
(B) 25
(C) 14
(D)16
(E)None of these
Q.A man purchases some oranges at the rate of 3 oranges for Rs. 40. and the same quantity at 5 oranges for Rs. 60. If he sells all the oranges at the rate of 3 oranges for Rs. 50, find his gain or loss percent (to the nearest integer).
(A) 34 % loss
(B) 32 % profit
(C) 31 % profit
(D) 31 % loss
(E) None of theses.
Answer
1
Ishaan Gupta
Subject: Maths
, asked on 1/12/17
Please answer this question.
$9.Ifa+b=2c,thenthevalueof\frac{a}{a-c}+\frac{c}{b-c}isequalto\left(wherea\ne b\ne c\right)\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}\left(A\right)-1\left(B\right)1\phantom{\rule{0ex}{0ex}}\left(C\right)0\left(D\right)\frac{1}{2}$
Answer
2
Hemant
Subject: Maths
, asked on 28/11/17
The sum of two numbers is 2490. If 6.5% of one number is equal to 8.5% of the other number, then find the smaller number.
Answer
2
Hemant
Subject: Maths
, asked on 28/11/17
Two years ago, Mohit was three times as old as his son and two years hence, twice his age will be equal to five times the age of his son. Find Mohit's present age.
Answer
1
Divyshree
Subject: Maths
, asked on 19/11/17
Solve this:
$\left(i\right)\frac{1}{1+{a}^{n-m}}+\frac{1}{1+{a}^{m-n}}\phantom{\rule{0ex}{0ex}}\left(ii\right)\frac{({x}^{a+b}{)}^{2}\times ({x}^{b+c}{)}^{2}\times ({x}^{c+a}{)}^{2}}{({x}^{a}.{x}^{b}.{x}^{c}{)}^{3}}$
Answer
1
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What are you looking for?

$Chapter-Exponents.\phantom{\rule{0ex}{0ex}}\u2022Q.Simplifythefollowingu\mathrm{sin}gthelawsofexponents:\phantom{\rule{0ex}{0ex}}3.{a}^{7+2n}\times {\left({a}^{2}\right)}^{3n+2}$

Q. Simplify the following using the laws of exponent

$2.\sqrt[3]{{x}^{18}{y}^{-12}{z}^{3}}$

Q17. What is the simplified form of

${\left[\sqrt[3]{{\mathrm{x}}^{4}\mathrm{y}}\times \frac{1}{\sqrt[4]{{\mathrm{x}}^{2}}{\mathrm{y}}^{8}}\right]}^{-6}$ ?

(A) x

^{5}. y^{10}(B) $\frac{{y}^{10}}{{x}^{5}}$(C) $\frac{{y}^{2}}{x}$ (D) $\frac{{x}^{5}}{{y}^{5}}$

Q What is the solution of ${3}^{3x-5}=\frac{1}{{9}^{x}}$ ?

a) 5/2 b) 5 c) 1 d) 7/3

Q Evaluate ${\left(\frac{16}{81}\right)}^{\frac{3}{4}}$

(A) 11 years 2 months

(B) 13 years 6 months

(C) 10 years 4 months

(D) 12 years 4 months

(E) None of these 42.

Q. If x=a

^{1}^{/2}+ a^{-1/2 }, y = a^{l/2}— a^{-1/2}, then value of (x^{4 }- x^{2}y^{2}— 1) + (y^{4}— x^{2}y^{2}+ 1)(A) 9

(B) 25

(C) 14

(D)16

(E)None of these

Q.A man purchases some oranges at the rate of 3 oranges for Rs. 40. and the same quantity at 5 oranges for Rs. 60. If he sells all the oranges at the rate of 3 oranges for Rs. 50, find his gain or loss percent (to the nearest integer).

(A) 34 % loss

(B) 32 % profit

(C) 31 % profit

(D) 31 % loss

(E) None of theses.

$9.Ifa+b=2c,thenthevalueof\frac{a}{a-c}+\frac{c}{b-c}isequalto\left(wherea\ne b\ne c\right)\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}\left(A\right)-1\left(B\right)1\phantom{\rule{0ex}{0ex}}\left(C\right)0\left(D\right)\frac{1}{2}$

Solve this:$\left(i\right)\frac{1}{1+{a}^{n-m}}+\frac{1}{1+{a}^{m-n}}\phantom{\rule{0ex}{0ex}}\left(ii\right)\frac{({x}^{a+b}{)}^{2}\times ({x}^{b+c}{)}^{2}\times ({x}^{c+a}{)}^{2}}{({x}^{a}.{x}^{b}.{x}^{c}{)}^{3}}$