Domain: x is greater than or equal to 2 but is less than our equal to 7
range: y is greater than or equal to 6 but is less than or equal to 18
Answer:
3/5
Step-by-step explanation:
3/4 * 4/5= 12/20= 3/5
Let x=Don's present age
2x=Chris's present age
next year:
<span>x+1=Don's age
</span><span><span>2x+1=Chris's age
(x+1)+((2x+1)=4(x-1) (next year the sum of their ages will be four times as much as Don's age last year.)
x+1+2x+1=4x-4
x=6
2x=12
Don's present age=6
Chris's present age=12 </span><span>
</span></span>
Answer:
A≈7563.59
Step-by-step explanation:
Using the formulas
A=πrl+πr2
l=r2+h2
Solving forA
A=πr(r+h2+r2)=π·27·(27+562+272)≈7563.59277