+9491 There are 20 of them:
| 1, | 2, | 3, | 4, | 5, | 6, | 8, | 10, | 12, | 15, |
| 240, | 120, | 80, | 60, | 48, | 40, | 30, | 24, | 20, | 16 |
| 00000 | 00000 | 00000 | 00000 | 00000 | 00000 | 00000 | 00000 | 00000 | 00000 |
verified here .
+9491 Any number, except for zero, raised to the power of zero equals 1 .
Here is one way of thinking about why this is. I've never heard it explained like this, but I really like his explanation! I will probably think of it this way from now on!
https://www.youtube.com/watch?v=dAvosUEUH6I
And....I was trying to find a good video explaining it another way, but I couldn't really find a good one. Here's a pretty good answer to your question that you can read through if you want.
+9491 3.
I think what they want is the line that passes through the most points. The easiest way to see which one passes through the most points is to look at a graph here: desmos
You can hide/show a line by clicking on the colored circles at the very left end of the window.
So, we can see that the blue line passes through the most points.
That is, the line y = x + 3 . (I don't like this answer very much though, to be honest!)
7.
This one is a little harder to see where exactly the points are. Let's just find the equation of a line that passes through the first point, (1, 1) , and last point, (3, 5) .
slope = (5 - 1)/(3 - 1) = 4/2 = 2
y - 1 = 2(x - 1)
y - 1 = 2x - 2
y = 2x - 1 Based on this, we can see the other options are way off!
6.
Hmmm, I don't really see much of a predictable trend here! But, the amount of blooms will probably be greater than 18. So, my guess is 22.
10.
From ≈ 12º to ≈ 17º the cost changed from ≈ $200 to ≈ $400
That is, with a 5º change in temperature, the cost changes about $200
So...from 16º to 21º the cost will probably change from ≈ $300 to ≈ $600
