By the chain rule:
( sin ( 2 x ) ) ` = cos ( 2 x ) · ( 2 x )` =
2 cos ( 2 x )f ` ( sin 2 x ) =
=
2 cos ( 2 x )
because:
This is the reason why Δ x ( or h here ) is cancelled in the denominator
B is the correct answer. Use distributive property or a generic rectangle. Hope this helps!
You have the area of the squares
100 in^2
area of a square = l*w
so length and width of the square both equal 10in
there are 4 squares going across the semi circle so...
diameter of semicircle is 10+10+10+10 =40in and radius is 20in
to find area of semicircle the formula is 1/2 pi r^2
so plug in the numbers 1/2(3.14) (20)^2 = 628 in ^2
now add that to area of big square part of window
40 inches length * 40 inches width = 1600in^2 (or you can just add them all up )
add up the areas now 1600+628= 2228 in^2
i think that is right
I hope you are getting this.
Answer:
50
Step-by-step explanation:
3x + 4x + 15 x = 5
3(5) + 4(5) + 15
15 + 20 + 15
50
Hope this helps :)