Answer:
117.81
Step-by-step explanation:
the cylinder surface area equation
A=2πrh+2πr2=2·π·2.5·5+2·π·2.52≈117.80972
Answer:
5/9
Step-by-step explanation:
fraction: 20/45
lcd of 25 and 45 is 5
25 ÷ 5 = 5
45 ÷ 5 = 9
therefore; 5/9
I think it must have a power like squared or cubed also I think it must have a subtraction sign...
Some examples of difference of two squares:
9x^2 - 1
Which would be = (3x+1) (3x-1)
4n^2 - 49
Which would be = (2n-7) (2n+7)
249r^2 - 150
Which would be = 6(7r+5) (7r-5)
150k^2 - 216
Which would be = 6(5k+6) (5k-6)
Notice that each bracket for each answer, one bracket has a + sign and another has a - sign.
Step-by-step explanation:
8. 120° - Obtuse angle
9. 40° - Acute angle
10. 180° - Straight angle
11. 90° - Right angle