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Let side=aTotal surface area=6a^2

Now, side=2aTotal surface area=6(2a)^2=24a^2

Percentage increase=(24a^2-6a^2)*100/6a^2=300%

Option 2 is correct

In given fig.(1, 3), (4,6), (5,7) are pair of alternate interior angles

5 persons = 1277 seconds1person = 1277÷5 =255.4 seconds

it should b in this way

Let side of cube is sSurface area of cube A= 6*s*s

If side of cube is doubled then s1 = 2sThen surface area of cube A1= 6(2s)*(2s) = 24*s*sChange in Surface Area %= ((A1-A) /A)*100= ((24*s*s - 6*s*s)/6*s*s)*100= (18/6)*100= 300%

l am children please explain like

what is meaning of s in this ans

what is meaning of the s

s is length of side of cube

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((3 + i√5) ( 3 - i√5)---------------------------------(√3 + √2i) - (√3 -i√2)

3² - (i√5)²---------------- 2√2i

9 + 5----------- 2√2i 7----------- √2 i

7√2i-----------√2×√2i²

-7√2i--------- 2

20000×3% = 20000×3/100 = 600

Let edge a of cube be doubled to 2 a.

1. Area = 6 a^2 = 6 * (2a)^2 = 6* 4 a^2 = 24 a^2. Surface area increases 4 times.

2. Volume =a3= (2 a)^2 = 8 a^3. Volume increases 8 times.

Surface are of cube of edge 'a'is given by : "6a"andIts, Volume is 'a^3'

so if the edge of the cube is doubled then the new edge will be 2aso its surface area will be = 6*2a = 12a = 2 times 6aand volume will be=(2a)^3 = 8a^3 = 8 times a^3

therefore, its surface area increases 2 times and its volume will increases 8 times

Right

We know sinθ.sin(60 - θ).sin(60 + θ) = ¼sin3θ

So, sin12.sin48.sin54.sin72/sin72 = ¼sin36.sin54/sin72

= ¼sin36.cos36/sin72

= ⅛sin72/sin72

= ⅛

The use of chemical fertilizers on crops can have adverse effects on waterways caused by chemical run off of the excess fertilizer. The over-abundance of nutrients in the water reduces the amount of oxygen. The existing organisms living in the water use up the oxygen that is left. The result is oxygen depletion causing the fish to die.

hi pryianka

Given simple interest of Rs. 4000/- at 5% p.a. and period is 2 years.

In that case annual simple interest at Rs. 2000/- i.e. 4000/2= Rs. 2000

Now 2000 /5% =40,000/-

Hence the sum is Rs. 40,000/-

cp of an article are =100 by 100-loss% into sp 100÷90 ×540 =600

4(2p - 3q - 9) + 2 ( 3p - 5q)

8p - 12q - 36 + 6p - 10q

8p + 6p - 12q - 10q - 36

14p - 22q - 36

1% = 1/100 150% = 150/100 = (50×3)/(50×2) = 3/2

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tell me how 144 ang 25 come out

Here if r % be the rate of interestMaturity value=(240*60)+(240+60*61*r/2*12*100)17694=14400+366r366r=3294r=9%

principal (P)= Rs. 1500time= 2 years (n)=2x12= 24months let rate be= r%

Amount received at maturity = Total money deposited + Simple Interest 37875 = (Pxn) + [{Pxn(n+1)} / (2x12)]xr/10037875 = (1500x24) + [{1500x24x25} / 24]x r/100 37875 = 36000+(900000 / 24)xr/10037875-36000 = 37500xr/100 (1875x100)/37500 = r 5 = r r=5%;

the answer is total number of boys =10/5

Here,total number of boys = 10,number of boys in the first team = 5,fraction of boys in the first team = 5 / 10, = 1 / 2.

Therankof a matrix is defined as (a) the maximum number oflinearly independentcolumnvectors in the matrix or (b) the maximum number of linearly independentrowvectors in the matrix.

Find the distance of boat from cliff when angle of elevation is 60° by taking tan60 = height of cliff /distance between boat and cliff it is found that it is 50√3

now in the same way taking angle of elevation as 45°find distance of boat when it is 45 °from the cliff. on finding distance = 150 m now find the distances between two position of boats which is 150 - 50√3

= 50(3 -1.732) = 63.4the boat travels 63.4 m in 2 min or 120 sec:. speed of boat = distance / time itis wanted m/hr:. answer should be multiplied by 3600=63.4×3600/120 =1902 m/hr

option c144is correct answer

To find in degree multiply by 180/π1)(5π/3)*180/π=5*60=300°2)(-5π/24)*180/π=-5*7.5=-37.5°

a)angle be in first case will be 43 degreeas they are opposite angles

b)Angle B in second case will be degreeas B+98+209=360°so Bwill be 53 degree

43degree 8s equale to angle b due to vertical opposit angle

50+130+120+x=360300+x=360x=360-300=60

thanks

60 degree bro............ its simply360-(50+120+130)=x

50x+130x+120x=180. 300+x=180. x=180/300

50+120+130+x=360. 180+x=360. x=360-180=180. thanks i think it help you please add coment

50+130+120+x=180300+x=180x=180_300=60

these are called as like fractions

these are called as like fractions

like fraction is correct answer

like fraction is the correct answer of the given question

these are called as like fractions

like fraction is right anawer.

are called like fraction