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gulaghasi [49]
2 years ago
7

Please solve it this is very important.

Mathematics
1 answer:
san4es73 [151]2 years ago
7 0

Answer:

see explanation

Step-by-step explanation:

The slope m of the line = tan45° = 1

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = 1 , then

y = x + c

To find c substitute (2, 1 ) into the equation

1 = 2 + c ⇒ c = 1 - 2 = - 1

y = x - 1 ← equation of line

When x = 0 then y = 0 - 1 = - 1

The line passes through (0, - 1 )

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So to find average, we add up the values, and divide it by how many values there are in total.

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There are 7 numbers. Which means we divide 140 by 7.

140 / 7 = 20 is the average.

Also, if you notice, most of the numbers "kind of" circulate around 20.

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Nine students in Maddie's classroom are wearing red. There are
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She is correct because 30 percent of 30 is 9 or in other words if you multiply 30 by 30 percent you get 9.

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What procedure will find the sum a+b of two numbers where a and b represent any integer?
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Answer:As rational number includes natural number, whole number ,integers  also.

⇒Natural number(1,2,3,4....) is a rational number also.

So, when A= Natural number , B=Any other natural number

Just add two natural number using simple law of addition.

⇒As Whole numbers(0,1,2,3,...) are Rational number also.

So If A=any whole number, B=Any other whole number

Add the whole number in any order using law of addition.

⇒Coming to integers (....-123,....-5,...-1,....12,....59,.....) By taking any two integers ,

1. Both of them are positive add using simple law of addition.

2. One of them is positive and other is negative , if larger one has positive sign before it just subtract smaller one from larger one and put positive sign before the result.and if larger one has negative sign before it ,subtract smaller one from larger one and put negative sign before the result.

⇒If both of them are negative , just add the two integers and apply negative sign before the result.

4. Rational number as fractions ,

A=m/n and B=p/q

A+B=m/n + p/q

find LCM of n and q.

If n and q are co-prime multiply n and q to get the LCM.For example if n=5, q=7, then LCM=5×7=35

If n and q are not co-prime find the factors of n and q .take out the common factors and then multiply the common factors with those factors which are not common.

For example, n=15, q=20

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20=2×2×5

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Suppose LCM(n,q)= K

⇒p/q+m/n

=

So ,

which is the way to find LCM of rational number when theyare fractions.

Step-by-step explanation:

4 0
2 years ago
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