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Angelina_Jolie [31]
2 years ago
14

Given the points (-9, 8) and (4, -1), find the rate of change between the points.

Mathematics
1 answer:
4vir4ik [10]2 years ago
3 0

Answer:

The rate of change is M= -9/13 (M= negative nine over thirteen)

Step-by-step explanation:

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<img src="https://tex.z-dn.net/?f=5%5Cfrac%7B1%7D%7B4%7D%20%20%2B%20%28%20%5Cfrac%7B3%7D%7B4%7D%20%20%2B%201%20%20%5Cfrac%7B5%7D
kobusy [5.1K]

Answer:

7 5/12

Step-by-step explanation:

5 1/4 + 3/4 + 1 5/12

We can add the first two terms

5 1/4 + 3/4

5 4/4

6

6 + 1 5/12

7 5/12

4 0
3 years ago
The width of a kitchen is 4.2 metres.
Svetradugi [14.3K]

Given:

The width of a kitchen is 4.2 metres.

Kitchen cupboard widths are 60 cm.

To find:

The number of kitchen cupboard that will fit in 4.2 metres.

Solution:

Let x be the number of kitchen cupboard that will fit in 4.2 metres.

Width of 1 cupboard = 60 cm

Width of x cupboards = 60x cm

We know that, 1 m = 100 cm.

Width of a kitchen = 4.2 metres

                              = 4.2×100 cm

                              = 420 cm

Now, the width of the x cupboards is equal to width of the kitchen.

60x=420

x=\dfrac{420}{60}

x=7

Therefore, the number of kitchen cupboard that will fit in 4.2 metres is 7.

5 0
3 years ago
Is this set of ratios equal?: 4/7 and 9/13
wel

Answer:

NO this set is not equivalent

Step-by-step explanation:

Okay the way you find out if a pair of ratios are equal is you would divide the denominator and nominator with each other, so: 13/7 and 9/4. But sense the answer would be in decimal form and cant be simplified this wouldnt be considered equivalent.  Also if you divide 7 by 4 you get a different answer than when you do 13 divided 9.

6 0
4 years ago
Read 2 more answers
Help plz my teacher won't help
lesantik [10]

Answer:

y = -3x + 9

Step-by-step explanation:

y = mx + b where m is the slope and b is the y intercept

The hypotenuse is on the same line as BC but twice as long.  So extend that line up and it will cross the y axis at (0,9).  9 will be your y intercept.

To find the slope start at C and count  up 9 and to the left 3 to get to B.

So the slope is rise/run or 9/(-3) = -3.

Final equation would be y = -3x + 9

6 0
3 years ago
What are the roots of the polynomial equation x^2-x72=0
Tom [10]
I hope this helps you



x^2-x-72=0


x -9


x +8



(x-9)(x+8)=0



x=9



x= -8
8 0
3 years ago
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