It will take you 2 minutes and 40 seconds to get across the walkway.
Answer:
a.)x² + y² = 900
b.)y = √900 - x²
Step-by-step explanation:
P.S - The exact equation is as follows :
As given,
The shape of the roller coaster is a half of a circle. Center the circle at the origin and assume the highest point on this leg of the roller coaster is 30 feet above the ground.
a.)
Equation of circle be x² + y² = r²
As given , leg of the roller coaster is 30 feet above the ground.
⇒ r = 30
⇒x² + y² = 30²
⇒x² + y² = 900
∴ we get
Equation of height of Roller coaster - x² + y² = 900
b.)
As we have, x² + y² = 900
⇒y² = 900 - x²
⇒y = √900 - x²
Answer:
-x^2-3x+11
Step-by-step explanation:
-x^2-3x+11
First off, you need to rewrite the equation as 3*2*3
Then you multiply 3 by 2 to get 6.
Then you multiply 6 by 3 to get 18.
Then the answer is 18.
Hope this helps :)
Answer: false
Step-by-step explanation: