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Svetach [21]
3 years ago
7

Explain how you could mentally find 8x45 by using Distrubitive property

Mathematics
2 answers:
ICE Princess25 [194]3 years ago
4 0
You could do 8x40=320 and then do 8x5=40 and lastly do 320+40=360
I hope that this helps you!!!
saul85 [17]3 years ago
3 0
 The distributive property
multiplying a sum by a number is the same as multiplying each addend by the number and then adding the products 

8x45= 360
8x40=320
8x5=40
8x40 + 8x5 = 360


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Answer:

1. 1/2, 2. 2, 3. 1/-3, 4. -2

Step-by-step explanation:

1) I know that the equation for slope is y2-y1/x2-x1. For number one I first found two points of the graph which is (0,3) and (2,4) (not sure if I see it correctly, its kind of blurry). I decided that (0,3) would be my y1 and x1 and (2,4) will be my y2 and x2. I later plugged the number in the equation and got 4-3/2-0 which the answer turns out to be 1/2.

2) For the rest of the questions it is kinda the same business as question 1. For question two I chose two points out of the table which wrer (-1, -12) and (1,-8) and plugged them into the equation and got -8-(-12)/1-(-1) which the answer turns out to be 2.

3) similar to question 2. The two points(2,-6) and (-4,-3) are given to you. so I plugged them in again and got -3-(-6)/-4-2 which the answer turns out to be 3/-6 into 1/-3.

4) Same with question 1 find two points of the graph. I chose (0,3) and (1,1) (again might not be accurate it's kind of blurry) I plugged them into the equation again and got 1-3/1-0 which equals -2.

Just always remember y2-y1/x2-x1=m is the equation for slope.

(m is the variable for slope)

Hoped this helped you : )

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Step-by-step explanation:

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