Answer:
Step-by-step explanation:
7x^2+1-11x-7
7x^2-11x-6
x^2-11/7x-6/7
this is the simpliest form
We have two rational expressions. One in numerator and one in denominator.
Dividing by a fraction is equivalent to multiplying by its reciprocal. The rational expression in the denominator can be multiplied by taking its reciprocal to simplify the overall expression as shown below.

There are no common factors, so the expression can be simplified any further.
Answer:
52min
Step-by-step explanation:
5 people..............5 walls............52 min
1 people...............5 walls...........52 x 5=260 min
1 people................20 walls.........260 x 4 =1040 min
20 people................20 walls........1040:20=52 min
Answer:
Step-by-step explanation:
There is a 1/20 chance of getting a 1.
This is a 5% chance.
I would say it's highly unlikely.
If this helped, please mark brainliest :D
Answer:
8 × pi
Step-by-step explanation:
The equation for circumference is 2 × pi × r.
Since the diameter is 8, we know the radius is 4.
2 × pi × 4 = 8pi