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ikadub [295]
3 years ago
8

Write the equation of the line that passes through the points (6,3) and (-7,9). Put

Mathematics
2 answers:
natka813 [3]3 years ago
5 0

Answer:

Step-by-step explanation:

slope=(9-3)/(-7-6)=-6/13

reqd eq. of line is

y-3=-6/13(x-6)

Mandarinka [93]3 years ago
4 0

Answer:

y-3=-6/13(x-6)

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Luda [366]

We need to graph the given piecewise function.

To graph any piecewise function we do that into parts

Let's graph upper part first which is

f(x)=x^2+2

restriction for that is -5 \leq x < 3

that means we are free to pick any number for x that is between -5 and 3, including 3.

So we will find few points by plugging random numbers between -5 and 3.

Let's use x=-5, we get:

f(-5)=(-5)^2+2=25+2=27

so first point is (-5,27).

similarly we can find other points like (0,2), (2,6), (-1,3) etc.

Now we join those points by a curved line.

-5 \leq x means we use a close circle at -5

x<3 means use open circle at 3


------------

Repeat same process for 2nd part f(x)=x-4

choose any number between 3 and 7 like x=3, 4 etc

so we get points (3,-1), (4,0) etc

Now graph them

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5 0
3 years ago
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Divide 180 in a ratio of 4:5:9
Amiraneli [1.4K]
Ratio in which 180 should be divided is 4:5:9
firstly we need to find the total number of portions 
this we can find by adding all the numbers making up the ratio 
4 + 5 + 9 = 18
180 is made of 18 portions 
size of 1 portion = 180 / 18 = 10
when dividing 180 into the respective ratio 4:5:9 the portions are as follows
4 x 10 = 40
5 x 10 = 50
9 x 10 = 90
therefore when we divide 180 in the ratio 4:5:9
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3 years ago
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A secretary types 160 words in 2 minutes. How many words can she type in 45 minutes?
zavuch27 [327]

Answer:

3,600

Step-by-step explanation:

1 minute=80 words

2 minutes=160 words

----------> I divided 44 by 2=22x 160 =44 minutes=3,520

add 1 more minute(1 minute=80 words)

so 3,600

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2 years ago
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