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i. (-30) , iii. -104, v. 140, vii. 50, ix. -92, x. -65

1 -902 -1043 +1404 +505 -92

hey mate is your answer; i) 90iii)( - 104)v) 140vii) 50ix) (-92)x) (-65)hope it helps u

(i) (-30)+(-30)=60; (ii)-52+(-52)=104; (iii)-0+-70=70; (v)75-25=50; (vi)[(-3)+(-12)[+(-77)=(-15)+(-77)=-92

(i) (-30)+(-30)=60, (iii)(-52)+(-52)=104 (iv)-0+(-70)=70 (vii)75+(-25)=50, (ix)[(-3)+(-12)]+(-77)=[-15]+-77=92;

correct answer is 60

a)90b) (-104) c) 140d) 50e) (-92) f) (-65)

1)-90, 2)-104, 3) 140 ,4)50 ,5)-92

a) 90b) (-140)c) 140d) 50e) (-92)f) (-65)

m^2+17mn-84n^2=m^2+2mn-4mn-84m^2=m(m+2n)+21m(m+ 2n)=( m+2n)(m+21n)=;

to show that the system is not associative4/7-3/5-1/2=20-21/35 -1/2=-1/25-1/2=-2-25/50=-27/50--1let's rearrange the terms4/7-1/2-3/5=8-7/14 -3/5=1/14-3/5=5-42/70=-37/70---2hence 1 is not equal to 2hence the system is not associative because after rearranging the terms we do not get the same result.

4/7-3/5-1/2=-1/35-1/2=-37/70

4/7-(3/5+1/2)=4/7-(11/10)=-37/704/7-1/2-3/5=1/14-3/5=-37/70

a) False.only addition and multiplication are commutative. subtraction is not commutativeb)True, addition is associative for integersc) False, additive identity of integers is zero as adding any number with zero gives zero.d)True, adding an integer with his additive inverse we get zero which is additive identity.e)True, integers are closed under addition but not under subtractionf) True, additive identity of an integer is 0.g) False, the sum of two negative integers is a negative integerh)True.i) False, it is equal to zero.

is this answer is right

Additve identity of integers is

option b is the correct option

what is your question

answer is 11/-13 because the associative property is worked hwre

associative property under additional (-10/11+5/6)+-4/3= -10/11+(5/6+-4/3)

It is associative ( option c)(3+4)+8=3+(4+8) 7+8 = 3+12 15=15

(3+4)+8 = 3+(4+8) shows associative property of whole numbers.

you are great bro

8x³+343y³+84x²y+294xy² =(2x)³+(7y)³+3(2x)²(7y)+3(2x)(7y)²=(2x+7y)³=(2x+7y)(2x+7y)(2x+7y) , Ans..

2x+7y Ka cube or (2x+7y)^3

No substraction don't follow associative property ..Ex..(2 - 4) -3 = -2 -3= -5while .2 - ( 4 -3) = 2 - 1= 1

thanks

(56208+792)+296 = 57000+296 = 57296 56208+(792+296) = 56208+1088 = 57296 so (56208+792)+296 = 56298+(792+296) associative property verified.

29/2 is the correct answer of the given question

19/2.This is your answer.

29/2 is the right answer

29/2 is the right answer

29/2 is the answer of this question

29 /2 is the correct answer because the denominators are same in the question.

695467777777676767776666666

The LCM of 3,6 is 6

Therefore,

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

(2x - 1 - 6x - 4)/2 = 1

- 4x - 5 = 2

- 4x = 7

Therefore, x = -7/4

Let the given statement be P(n) , i.e.,

P(n): 1 + 3 + 32+ ………..+3n-1= (3n– 1)/2

For n = 1, we have

P(1): (31– 1)/2 =3-1/2=2/2= 1 , which is true.

Let P(k) be true for some positive integer k, i.e.,

1 + 3 + 32+ ………..+3k-1= (3k– 1)/2

We shall prove that P(k+1) is true.

Consider

1 + 3 + 32+ ………..+3n-1+ 3(k+1)-1= 1 + 3 + 32+ ………..+3k-1+ 3k

=(3k– 1)/2+3k

=[(3k– 1)+2.3k]/2

=[(1+2)3k– 1]/2

= [3.3k– 1]/2

= [3k+1– 1]/2

Thus, P(k + 1) is true whenever P(k) is true.

Hence, by the principle of mathematical induction, statement P(n) is true for all natural numbers i.e., N.

49=7^2343=7^3hence(7)^(2n+3)-(7^2)^(n+2)/(7)^3(n+1)^2/3=7^2n+3-7^2n+4/7^2n+2(7^3-7^4)/7^2=7^2(7-7^2)/7^2=7-49=-42

154/X is the correct answer of the given question is

what is your question

1. b 2. c .4. d

1)south-west2)cannot be determined3)It keeps increasing from North to south pole4)E

yes it is correct answer

Post one question at a time

it is correct bro.. wow

Let Rakesh's initial speed = x then his final speed = 5x/4 ( because he is running at 5/4 of his usual speed )initial speed : final speed = x : 5x/4 = 4 : 5 and then his time ratio = 5x/4 : xHe reached 5 min earlier so his new time minus initial time = 5x/4 - x = x/4and x/4 = 5 so his new time will be 20 minutes and then his usual time will be 25 minutes ( because he reached 5 min earlier as given in the question so ans is 20 min + 5 min = 25 min )

This question is incomplete but I know this question so I am sending u the answer

Sry this was the answer of previous question

prime numbers in between 1 to 202,3,5,7,11,13,17,19=8hence probability willbe8/20=2/5

Formulaes are already provided.

{(4/-3)⁻³}²=(4/-3)⁻⁶=(-3/4)⁶=3⁶/4⁶=729/4096

resultant F=√F1^2+F2^2+2F1F2costheta50=√F^2+4F^2+2*F*2F*cos90squaring both sides2500=5F^2F^2=2500/5=500F=10√2N

The true statement is:CP-Loss=SP

(23/4 + 22/8 - 44/9)Find lcm of 4, 8, 9= 72

(23x18 + 22x9 - 44x8)/72= (414 + 198 - 352)/72= 260/72= 3.61

1)Monomers are relatively small and simple molecules or units of a large molecule or a polymer. Monomers bond together to form a polymer. The monomers of terylene are ----1. Ethylene Glycol2. Terephthalic Acid

Terylene is a synthetic fibre used for making clothes. It is elastic, highly durable, wrinkle-free.

The acid is benzene-1,4-dicarboxylic acid (old name: terephthalic acid). The alcohol is ethane-1,2-diol (old name: ethylene glycol).

2)First of all, nylon 6 is only made from one kind of monomer, a monomer calledcaprolactam. Nylon 6,6 is made from two monomers,adipoyl chlorideandhexamethylene diamine.

wavelength=speed/frequency

Wavelength corresponding to 20 hz=344/20=17.2 m

Wavelength corresponding to 20 Khz=344/20000=0.0172 m

Therefore, wavelengths of sound corresponding to the given two frequencies is 0.0172m to 17.2m

nice answerrrrr.....

A = 11 , d = 8-11 d= -3

nth term = -151a+(n-1)d = -15111+(n-1)(-3)= -15111-3n+3 = -15114-3n = -151-3n = -151-14-3n = -165 (removing '-' on both sides )n = 165/3so, 55 is a term of the given list number.

Inter-cropping is one of the methods of crop production that ensures high yield. It is the method of growing two or more varieties of crops on the same land in a definite pattern. These crops having different nutrient requirements. Inter-cropping helps in preventing pests and diseases to spread throughout the field. It also increases soil fertility, whereas crop rotation prevents soil depletion, increases soil fertility, and reduces soil erosion.

We know that, velocity=frequency×wavelength=>334=(120×10³)×wavelength=>wavelength=334/(120×10³)=2.783×10⁻³ m

let the nth term be 78So, 3 + (n-1)5 = 78so, (n-1)5=75so, n-1 = 15hence, n= 16 So, 16th term is 78

Asfor any n term aₙ= a+(n-1)dso for 7 th term it will be a+6dthen we put the value of d hereand got our results

vector a= (1 ,2, 3) & vector b= (-3 , 4 , 3)

total vector is denoted by R,

R=a+k(b-a)==>C

vector a= 1i+2j+3k

vector b= -3i+4j+3k

put the values of vector a and vector b in equation C

vector a=a

vector b=b

R=i+2j+3k+k(-3i+4j+3k-i-2j-3k)

R=i+2j+3k+k(-4i+2j)

R is a vector for a line passing through 2 points vector a and vector b can be given by,

R=i+2j+3k+k(-4i+2j)

now with the help of doth product,

vector called as unit vector along with z-axis is denoted by k,

direction ration is (0,0,1)

and direction line (-4 2 0)

if two lines perpendicular to each other then we know that,

=0*-4+0*2+1*0

=0

so that it is perpendicular to axis Z.