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kotykmax [81]
2 years ago
14

Can i get help in maths which i mark imp that i only need and nothing:)​

Mathematics
1 answer:
UNO [17]2 years ago
5 0

Answer:

hi

1 13 cm 14 cm 15m

1/2×14

Step-by-step explanation:

please mark me as brainlist please

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Find the equation of the line that passes through the point of intersection of x + 2y = 9 and 4x -2y = -4 and the point of inter
Rudik [331]

Answer:

y=-6x+10

Step-by-step explanation:

The point of intersection of

x+2y=9...eqn1


and


4x-2y=-4...eqn2

is the solution of the two equations.


We add equation (1) and equation(2) to get,

x+4x+2y-2y=9+-4


\Rightarrow 5x=5


\Rightarrow x=1

We put x=1 into equation (1) to get,

1+2y=9

\Rightarrow 2y=9-1

\Rightarrow 2y=8

\Rightarrow y=4


Therefore the line passes through the point, (1,4).


The line also passes through the point of intersection of

3x-4y=14...eqn(3)

and

3x+7y=-8...eqn(4)

We subtract equation (3) from equation (4) to obtain,

3x-3x+7y--4y=-8-14


\Rightarrow 11y=-22

\Rightarrow y=-2


We substitute this value into equation (4) to get,

3x+7(-2)=-8


3x-14=-8


3x=-8+14


3x=6

x=2

The line also passes through

(2,-2)



The slope of the line is

slope=\frac{4--2}{1-2} =\frac{6}{-1}=-6


The equation of the line is

y+2=-6(x-2)

y+2=-6x+12


y=-6x+10 is the required equation





4 0
3 years ago
NEED HELP ASAP
MrRa [10]
(x-2)squared +y squared=20
6 0
3 years ago
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AlekseyPX

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3 years ago
If a coin is flipped three times in a row, what is the probability of getting tails on all three flips?
telo118 [61]
Probability of getting tails on first flip = 1/2

Probability of getting tails on second flip = 1/2

Probability of getting tails on third flip = 1/2

Probability of getting all 3 tails =  1/2 * 1/2 * 1/2 = 1/8
4 0
3 years ago
Write 3/4 as a decimal number
sasho [114]

Answer: 0.75. It's pretty obvious.

3 0
3 years ago
Read 2 more answers
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