Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.
<span>
it consists of a rectangle, dimensions L = 4ft and W = 3ft = Ar = 4ft x 3ft = 12 ft^2
</span>then, you have one half of the area of the circle that has diameter R = 3ft - radius will be r = 1.5ft the area of that half will be:
Ac = r^2

/ 2
= (1.5 ft)^2 x 3.14 / 2
= 2.25 ft^2 x 3.4/2
= 7.065 ft^2/ 2
= 3.5325ft^2
A = Ar + Ac
A = 12ft^2 + 3.5325ft^2
A = 15.5325ft^2
<span>At the rate of $2 per square foot, the cost will be:
$ 15.5325*2 = 31.07 </span>
50 years ... 2.5 degrees
1 year ... x degrees = ?
If you would like to know what is the rate of change in worldwide temperatures per year, you can calculate this using the following steps:
50 * x = 2.5 * 1
50 * x = 2.5 /50
x = 2.5 / 50
x = 0.05 degrees per year
Result: The rate of change is 0.05 degrees per year.
Answer:
1st: consistent and dependent
2nd: (-2,0). Simply put the called and check.