Answer:
Step-by-step explanation:
we know that the circumference is equal to
we have
substitute
Answer:
5x = (-2)
Step-by-step explanation:
x + y - 6x = y + 2
x - 6x = 2
-5x = 2
5x = (-2)
Answer:
40.67
Step-by-step explanation:
I calculated it
Answer:
1 3/4
Step-by-step explanation:
improper to mixed number
Answer:
12√2.
Step-by-step explanation:
You can do this by the Pythagoras theorem:
20^2 = x^2 + (4sqrt7)^2 where x is the distance required.
x^2 = 20^2 - (4sqrt7)^2
= 400 - 112
= 288
x = √288
= √144 *√2
= 12√2.