The center is (0,0).
The radius is 7.
Rewrite y^4 as (y^2)^2
(y^2)^2 + 14y^2 +49
Rewrite 49 as 7^2
(y^2)^2 + 14y^2 +7^2
Factor using the perfect square rule.
Final answer: (y^2 + 7)^2
Rate of change is like slope. Change in y/ change in x
First we have to solve for the y.
x^2 -3x -4 when x = 7
7^2 -3(7)-4= 24 (7,24)
x^2-3x-4 when x=10
10^2-3(10)-4= 66 (10,66)
(66-24)/(10-7)
42/3 = 14
Answer:
The answer: cougar population is 9 times the bear population
Step-by-step explanation:
∵ x = 15 ⇒ 15 years after study time
∵ f(x) = 830(0.8)^15 = 29.203 ≅ 29
From the table the cougar population after 15 years = 226
∴ The cougar population = 266 ÷ 29 = 9.172 ≅ 9 times the bear population
Step-by-step explanation:
3 lemons = $0.99
=> 8 lemons = $0.99 * (8/3) = $2.64.
8 lemons cost $2.64.
