Answer:
A=2πrh+2πr2=2·π·2·4+2·π·22≈75.39822
Step-by-step explanation:
Answer:
1.90
Step-by-step explanation:
You would want to use a calculator since you need decimal places.
Once you type it into the calculator you should get 1.8952380952.
Since you're trying to simplify to the second decimal place, look at the third number after the decimal.
The 5 rounds up the 9 to a ten, which is represented by the 0.
That then turns the 8 into a nine.
Answer:
2 : 1
12 : 6
30 : 15
Step-by-step explanation:
Look at the ratios one by one. Starting with 6 : 3, we can see that it's of the form 2a : a.
2 : 1
12 : 6
30 : 15
These are all equivalent.
Answer:
Teo: 12
Richard: 27
Step-by-step explanation:
Teo's age = x
Richard = 2x+3 (three years older than twice Teo's age)
If Richard+Teo=39 then x+2x+3=39
solve
3x=36
x=12
If Richard is 2x+3 then do 12*2+3=27
Answer:
where is the equation......
