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(a)gas is collected at the cathode andgas is at anode. (b) The gas which is collected in double the amount in the electrolysis of water experiment is hydrogen. This is becausecontains 2 parts of hydrogen element and 1 part of oxygen element by volume. (c) Hydrogen gas burns with a pop sound when the burning splinter is brought near the gas. If a smoulding match stick is brought in contact with oxygen gas, it starts burning brightly.

gas collected at cathode is hydrogen and gas collected at anode is oxygen

pure water is a bad conducted of electricity.By aading a few drops of sulphuric acid,we make it a good conductor of electricity.

3.2cu.m is the amount of water filled on terrace

3.2m³ is the right answer

Amount of, water collected=8x8x0.05=64x0.05=3.2miter Ghan.

3.2 m³ is the right answer

3.20 or 3.2cu.m is answer by me

3.2 m^3 is the best answer

3200 is the correct answer of this question

3200 litre is correct answer

3.2m^3 is the correct answer

3.2m = 3200l mm is the correct answer

3.2 cu.m that is 3200 litres is the right answer

3.2m² is the best answer

1) Sum of angles of quadrilateral is 360

2) Let fourth angle be x 80 + 70 + 120 + x = 360 x = 360-270 = 90

3) let angles of quadrilateral are 3x, 4x, 5x, 6x then 3x + 4x + 5x + 6x = 36018x = 360x = 20

Largest angle = 6*20 = 120

Question is incomplete. Please post complete question

Here,a=5 (distance at which first sample is collected/the first term)

an= 35 (distance at which last sample is collected/last term)

d= secound term - first term=8-5=3 (interval at which sample is collected)

n= no of samples collected,which is what we need to findSubstitute all the values in the formula

We get,an=a+(n-1) × d

35=5+(n-1) × 330=(n-1)×330=3n-333=3nn = 11

20×30/100 = 6 dollars

6 US dollars will be20 percentage of 30 dollars

at x=1, the value of f(x) = 2(x)+(2-x) = 2x+2-x = x+2

and f'(x) = 1

so, it is differentiable

can you plz note this answer on a paper and send it to me

by method

What is it , that is not understandable here ?

I am not understanding your answer can u plz answer this question briefly

at x = 1 , |x| = |1| so, it is +ve and mod will open like x , and |2-x| = |2-1| = |-1| , since it is -ve so, it will open with -ve sign as -(x-2) = 2-x

now add both 2x+2-x = x+2 and then differentiate it to see if you are getting any value or not.. here on differentiation it is coming 1.

given f(x) = (x-1)⅓f'(x) = 1/3(x-1)-⅔ or f'(x) = 1/3(x-1)⅔

so at x = 1 , the denominator becomes 0. and the term becomes. 1/∞ , that is undifferentiable ..

no it's right question

it's ans is 4 bro.

A ka answer =25B ka answer=436

Your correct answer isA--- 25b-- 436c-- 0

select the number of kilometres be xrent price for two days=500*2=1000and its Rs.8 per km,therefore, 1000+8*x=1644=>8x=644=>x=644/8= 80.5 kms

Number of hours the bike was checked out = (48 - 18)/6 = 30/6 = 5hrs

the question in incomplete. can you post the whole question please?

One month Kala rented 4 movies and 8 video games for a total of $61. The next month she rented 2 movies and 3 video games for a total of $25. Find the rental cost for each movie and each video game.

for x put value of y in any of the equations. remember to put the value of y only in the original two equations we derived okay? so for x :2x+3y=252x+3(11/2)=252x=25-3(11/2)2x= (25×2 -33)/25( after taking lcm)2x= 50-33/22x= 17/2x=17/4= 4.25$ therefore x=4.25$ and y is 5.5$

for x put value of y in any of the equations. remember to put the value of y only in the original two equations we derived okay? so for x :2x+3y=252x+3(11/2)=252x=25-3(11/2)2x= (25×2 -33)/25( after taking lcm)2x= 50-33/22x= 17/2x=17/4= 4.25$ therefore x=4.25$ and y is 5.5$

40 ladies are present in the party

A got 20%, B got 25%, C got 30%so remaining votes=100-20-25-30=25%now 25% is 3000 votesso total votes=(3000×100)/25=12000

Answer:

The cost of each chairs is Rs. 680 and the cost of each table is Rs. 560.

Explanation:

let the cost of each chair be x and the cost of each table be y.

As per the given Condition: we have

7x+4y=Rs 7000 ......[1]

5x+3y= Rs 5080 ......[2]

Solve the equation [1] and [2] simultaneously we get;

x = Rs. 680

Substitute the value of x in equation [1] we have;

7(680) + 4y = 7000or

4760+4y=7000 or

4y= 7000-4760 = Rs. 2240

On simplify, we get;

y = Rs. 560.

Therefore, the cost of each chairs is Rs. 680 and the cost of each table is Rs. 560.

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P(E) > 1

This is not possible.Probability can never be greater than 1. Probability lies between 0 and 1.

Option CFor any event to occur, total probability of occurrence is 1

Answer:

QF = 2

Step-by-step explanation:

It is given that,

In ∆ DEF, line PQ || side EF, If DP = 2.4, PE = 7.2, PQ = 1 then find QF.

Here PQ || side EF

If a line is drawn parallel to one side of a triangle to intersect the other two sides in distinct points, the other two sides are divided in the same ratio

To find QF

DP/PE = PQ/PF

PF = (PQ x PE)/DP =(7.2 x 1)/2.4 = 7.2/2.4

QF = PF - PQ = 7.2/2.4 - 1 = 2

Therefore PQ = 2

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200The highlighted numbers are in which digit 7 occurs.

Now, let us write all the numbers which have the digit 7 in them between 1 to 200.

These numbers are as follows.

Number Number of times digit 7 occurs in it

7 1 17 1 27 1 37 1 47 1 57 1 67 1 70 1 71 1 72 1 73 1 74 1 75 1 76 1 77 2 78 1 79 1 87 1 97 1 107 1 117 1 127 1 137 1 147 1 157 1 167 1 170 1 171 1 172 1 173 1 174 1 175 1 176 1 177 2 178 1 179 1 187 1 197 1 _______ 40 _______

So, from 1 to 200, the digit 7 occurs 40 times

40 is the correct answer.

40 is the best answer

40 is the right answer

thanks

The hands of a clock point in opposite directions (in the same straight line) 11 times in every 12 hours. (Because between 5 and 7 they point in opposite directions at 6 o'clcok only).

So, in a day, the hands point in the opposite directions 22 times

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How many natural numbers are there form 2 to 10 ? What fraction of them are prime numbers?