Answer:
see explanation
Step-by-step explanation:
Using the double angle identity for sine
sin2x = 2sinxcosx
Consider left side
cos20°cos40°cos80°
= 
(2sin20°cos20°)cos40°cos80°
= 
(2sin40°cos40°)cos80°
= (sin80°cos80° )
= 
(2sin80°cos80° )
= . sin160°
= . sin(180 - 20)°
= . sin20°
= 
= right side , thus proven
8.68x when x=the amount of hours you have worked
So do 8.68*16
Which equals $138.88
Answer:
148x
Step-by-step explanation:
12x^2 + 4x
144x + 4x
148x
I think this is correct? But hopefully this helped :)
Answer:
check the length and the angles and check the height of it
The first thing we must do for this case is find the scale factor.
We have then that for the larger side of both triangle, the scale factor is:
To find the other two sides, we must apply the scale factor on each side of the triangle FGH.
We have then:
For PQ
For QR
Answer:
You have that the lengths for the other two sides of triangle PQR are:
