This is the answer of your question
Answer:
After expanding the polynomial 
we get 
Step-by-step explanation:
We need to expand the polynomial
Multiply the terms:
So, after expanding the polynomial we get
Hello!!!!
Rounding becomes really easy if you know your places!
So, if you want to round 4.08 to the nearest tenth, all you would have to do is find the tenth place, in this case, the 8.
Since 8 is above 5, you can automatically round to 10.
So, your answer would be 5!
Hope I helped you!!!!! :)
Answer:
201.1 km²
Step-by-step explanation:
Surface area of the figure,
4πr²
= 4×π×4²
= 64π
= 201.1 km² (rounded to the nearest tenth)
Use the double angle function sin2x = 2sinxcosx.
2sinxcosx + sinx = 0
For the first part of the problem, consider the solutions on the interval where sinx = 0
x = 0, pi
Now consider the solutions where sinx does NOT equal zero.
2sinxcosx + sinx = 0
2sinxcosx = - sinx
2cosx = - 1
cosx = - 1/2
x = 2pi/3, 4pi/3
