Answer:
z = 2.7x/r²y
Step-by-step explanation:
z = kx/r²y
½ = k × ⅓ ÷ (3² × ⅕)
½ = ⅓k × 5/9
k = 27/10 = 2.7
z = 27x/10r²y
z = 2.7x/r²y
ANSWER

EXPLANATION
The given function is

We rewrite this function to obtain,

We now compare this function to

We have

This implies that,

The vertex is (2,-11).
The focus is



Answer: The first one (A) f(x)= x (x-a)(x-b)²
Step-by-step explanation: Trust me, it’s right
Answer:
(x-8)(x+6)
Step-by-step explanation:
Hope This Helps!!
If AB is 15, then BC is 15*9/5=27. Therefore, we can write the equation 5x+2=27.
We subtract by 2 to find that 5x=25, and divide by 5 to see that x=5.