To calculate it use pythagoras: a^2+b^2=c^2
7^2+10^2=49+100=149
calculate the square root:
so the diagonal is about 12.2 inches long
If x represents the width of the poster (including borders), the area of the finished poster can be written as
.. a = x*(390/(x -10) +8)
.. = 8x +390 +3900/(x -10)
Then the derivative with respect to x is
.. da/dx = 8 -3900/(x -10)^2
This is zero at the minimum area, where
.. x = √(3900/8) +10 ≈ 32.08 . . . . cm
The height is then
.. 390/(x -10) +8 = 8 +2√78 ≈ 25.66 . . . . cm
The poster with the smallest area is 32.08 cm wide by 25.66 cm tall.
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In these "border" problems, the smallest area will have the same overall dimension ratio that the borders have. Here, the poster is 10/8 = 1.25 times as wide as it is high.
The answer is 1. Anything to the 0 power is 1.
Answer:
There is no slope
Step-by-step explanation:
The equation for finding the slope is:
y2 - y1
------------
x2 - x1
-----------------------------------------------------------------------------------------------------------
-9 - (-9)
----------- <----------------- Here is your starting equation
7 - (-9)
-------------------------------------------------------------------------------------------------------------
-9 + 9
---------
7 + 9
-------------------------------------------------------------------------------------------------------------
0
---
16
--------------------------------------------------------------------------------------------------------------
There is no slope because you can't divide 0 by 16
Hope that helps :)
Less than 2 videos = 0 or 1 videos
P(1) = 1 - 0.1 - 0.3 - 0.2 - 0.1 = 0.3
P(0 or 1 video) = 0.1 + 0.3 = 0.4
Answer: 0.4
