Answer: 1/6
Step-by-step explanation: there is 6 faces on a standard die, one of them is 5.
Answer:
138.23
Step-by-step explanation:
2πrh+2πr^2=2·π·2·9+2·π·2^2
First simplify the equation and next multiply the 20 with the x^2 and find a number that adds together to give you the middle
we are given
x^2-4x-5
we can use formula
x^2-(a+b)x+ab=(x-a)(x-b)
so, we have
a+b=4
ab=-5
now, we can solve for a and b
and we get
a=5, b=-1
now, we can plug it in formula
x^2-4x-5=(x-5)(x+1) ............Answer