Answer:
Ex1: If $1000 is invested now with simple interest of 8% per year. Find the new amount after two years. P = $1000, t = 2 years, r = 0.08.
Step-by-step explanation:
hope this helps
Answer: x = -2
Step-by-step explanation:---------------
Answer:
the material when you get a chance can you send me the material
3/7 = x/28....3 pies to 7 cups = x pies to 28 cups
cross multiply because this is a proportion
(7)(x) = (3)(28)
7x = 84
x = 84/7
x = 12.......so 28 cups of flour will make 12 pies
Answer:
B. A(r(t)) = 25πt²
Step-by-step explanation:
Find the completed question below
The radius of a circular pond is increasing at a constant rate, which can be modeled by the function r(t) = 5t where t is time in months. The area of the pond is modeled by the function A(r) = πr². The area of the pond with respect to time can be modeled by the composition . Which function represents the area with respect to time? A. B. C. D.
Given
A(t) = πr²
r(t) = 5t
We are to evaluate the composite expression A(r(t))
A(r(t)) = A(5t)
To get A(5t), we will replace r in A(t) with 5t and simplify as shown
A(5t) = π(5t)²
A(5t) = π(25t²)
A(5t) = 25πt²
A(r(t)) = 25πt²
Hence the composite expression A(r(t)) is 25πt²
Option B is correct.
