1. rational 2. irrational 3. irrational 4. rational
Substitute x for 7.
f(x)=22x+12
f(7)=22(7)+12
Multiply first, then complete addition.
f(7)=154+12
f(7)=166
180 N
Step by Step Explanation :
Step 1 :
Given that the buoyant force of the boat is 260 N
and the boat's weight is 80 N
We have to find the maximum weight capacity of the boat so that it continues to float.
The boat would float when the total of the weight of boat and the load it carries do not exceed the buoyant force.
Step 2 :
The weight capacity of the boat is therefore 260 N - 80 N = 180 N
Hence the boat can carry a weight of 180 N to continue to float
Another way to write this number is 626 children
Your answer is A hope this helps
