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
Use the substitution method
f(x)= 6x-4
f(8)= 6(8)-4
f(8)= 48-4
f(8)= 44
Answer is f(8)= 44
Answer:
5
Step-by-step explanation:
5 x 2 is 10 and 48 plus 10 is 58
Answer:
False
Step-by-step explanation:
lets try this
100*.4 = 60$
60*(1-.2)
=60*0.8
= 48$
so false
Since we have given that
Eliza started her saving account with $100 .
So, Initial amount = $100
Each month she deposits $25 into her account ,
So, Increment per month = $25
Now, we need a relationship between the amount Eliza deposit and the total amount in her amount will be
So, required function will be
In Second month, amount will be
In tenth month, amount will be
Average rate of change from second month to the 10 th month will be
Hence, average rate of change will be $25 per month.