Answer:
Step-by-step explanation:
we know that
---> by addition angle postulate
we have
----> given problem
----> given problem
substitute in the expression above
Divide by 2 both sides
24. C
25. B
26. A
27. C
I hope this helped!
Take the coefficient of x which is 20 and divide divide by two giving you 10 Now square that to get 100.
You would need to add 100 to both sides to complete the square.
we have asked to represents
3 tenths and 9 hundredths as a decimal.
As we know the tenths place is the first place on right side of the decimal.
Also we know that hundredths is the second place on right side of the decimal.
since the problem says
3 tenths----> it mean the first position on the right side of the decimal.
9 hundredths.......> it mean the second position on the right side of the decimal.
Hence the decimal representation of the number is 0.39