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Vedmedyk [2.9K]
3 years ago
9

#20 and 21 PLEASE I BEG

Mathematics
1 answer:
Salsk061 [2.6K]3 years ago
6 0
The slope is the difference of y-coordinates divided by the difference of x-coordinates. Aritmetic is all that's needed.

20. (-4-3)/(7-(-2)) = -7/9

21. (1-(-1))/(4-(-6)) = 2/10 = 1/5

____
The attached graphs show the lines in point-slope form, so the slope values computed above are verified to make the line go through the given points.

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Math order of operations
Novosadov [1.4K]

Answer:

93

Step-by-step explanation:

6 0
3 years ago
Round 69.625 to the nearest whole<br> number, the nearest tenth, and the<br> nearest hundredth.
muminat

70 to the nearest whole number

69.6 to the nearest tenth

69.63 to the nearest hundredth

BRAINLIEST PLSSS

6 0
2 years ago
Can someone please help me factor 6x^2 - 9x+42
frutty [35]

Answer:

3(2x^2-3x+14)

Step-by-step explanation:

6x^2-9x+42

All three terms have a common factor of 3

3(2x^2-3x+14)

Now let's focus on 2x^2-3x+14 and bring down the factor 3 later

so a=2

b=-3

c=14

Let's try to find two factors for ac that multiply to be a*c and add up to be b.

ac=28

b=-3

-----

ac=7(4)=14(2)=8(2)

Even if I made these pairs with both negatives nothing would give me -3

So you can only go as far as 3(2x^2-3x+14)

Here is another thing to help you if you have ax^2+bx+c and b^2-4ac<0 then it can't be factored (over reals)

6 0
3 years ago
Read 2 more answers
WILL MARK BRAINLIST PLS HELP:))
dusya [7]

Answer:

Vertex: (3,0)

Max/min: min

axis of symmetry: x=3

Domain: (-∞,∞)

Range: [3,∞)

zeroes: (3,0)

Step-by-step explanation:

Vertex is where the graph changes directions (so in this case it's the point where it changes from decreasing to increasing) which I think is (3,0)

It's a minimum because the coefficent for the degree is positive

The axis of symmetry is just the x value of the vertex (which is x= 3)

the domain is all possible x values (-∞,∞)

The range is all possible y values [3,∞)

The zeroes is where the line hits the x axis, which is (3,0)

6 0
3 years ago
Please tell me how can i find x without calculator ?
gtnhenbr [62]
I hope this helps you

3 0
4 years ago
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