Answer:
The answer is D) 2.2km
Step-by-step explanation:
Answer:
The solution for the equation is 
.
Step-by-step explanation:
-Solve the equation:
-Subtract 7x from 2x:
-Subtract both sides by 5:
-Divide both sides by -5:
So, the answer is .
Answer:
T = 0.34r³
Step-by-step explanation:
Given that T is directly proportional to r³ then the equation relating them is
T = kr³ ← k is the constant of variation
To find k use the condition T = 21.76 when r = 4 , then
21.76 = k × 4³ = 64k ( divide both sides by 64 )
0.34 = k
T= 0.34r³ ← equation of variation
<span><span>(10)</span><span>(3.26)</span></span><span>=<span>32.6
Your answer is in Bold.
~Good Luck~</span></span>
