Imagine right triangle with first leg to be the Chad length and second leg to be the Chad's shadow. Second leg has length 14.3 ft and since t<span>he straight-line distance from the top of Chad’s head to the end of the shadow creates a 23° angle with the ground, you could consider the trigonmetric function
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,
then

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Answer:
See below
Step-by-step explanation:
The derivative of the function is the slope
2x^2 - x -1 take derivative ( f ' )
4x -1 equate to 7
7 = 4x -1
x = 2 sub into the original equation to find y = 5
Answer:

Step-by-step explanation:
Given : 
To Find : What are the factors of 
Solution:

Since 100 =

using property : 

Thus the factors of
are (x+10) and (x-10)
Answer
The last one
y+2=-(x+8)
21 is 30% of 70. 70*.30=21