What is -3m - 8(m + 1)?
2 answers:
Hi!
<em><u>Answer:</u></em>
<em><u>-11m-8</u></em>
<em><u>*The answer must have a negative sign.*</u></em>
Step-by-step explanation:
Distributive property: a(b+c)=ab+ac
First, you expand.
Then you rewrite the problem down.
Finally, you add by the numbers and similar elements.
Final answer is -11m-8
I hope this helps you!
Have a nice day! :)
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If he could walk directly from the back door to the barn door, he would walk 10.2 yards less.
First, let's define our coordinate axis, I will use north as the y-axis and east as the x-axis.
So let's assume that Loto begins at the point (0, 0).
Then:
- He moves 8 yards east, to: (8yd, 0)
- He moves 6 yards north, to: (8yd, 6yd)
- He moves 12 yards east, to: (20yd, 6yd)
- He moves 5 yards north, to: (20yd, 11yd)
So he walked a total of 8yd + 6yd + 12yd + 5yd = 33yd
So he just moves from (0, 0) to (20yd, 11yd), thus the displacement is:
So, if he could walk directly he would only walk 22.8 ft
The difference is:
33yd - 22.8yd = 10.2 yd.
He would walk 10.2 yards less if he could walk directly from the back door to the barn door.
If you want to learn more about displacements, you can read: