Answer:
1.8 in.
Step-by-step explanation:
Hi there!
<u>1) Determine the radius of the base</u>
where r is the radius of the base and h is the height of the cone
Plug in the known values (h=4.2, V=3.6)
Isolate r; divide both sides by 4.2
Multiply both sides by 3
Divide both sides by π
Take the square root of both sides
<u>2) Determine the diameter</u>
Now that we have the radius, to find the diameter, multiply r by 2:
Therefore, the diameter is 1.8 in. when rounded to the nearest tenth.
I hope this helps!
Wouldent the answer be A because all percents are out of 100 so the 1.9 would be 9 over 100
Answer:
28 years
Step-by-step explanation:
To find the number of years that the investment will reach $3500, we can use the formula of compound interest:
P = Po * (1+r)^t
where P is the final value, Po is the inicial value, r is the annual interest and t is the time in years.
In this question, P = 3500, Po = 1800 and r = 2.46% = 0.0246, so:
3500 = 1800 * (1+0.0246)^t
1.0246^t = 3500/1800
1.0246^t = 1.9444
Using logarithm in both sides:
log(1.0246^t) = log(1.9444)
t*log(1.0246) = 0.2888
t * 0.0106 = 0.2888
t = 0.2888 / 0.0106 = 27.2453 years
So the investment will reach $3500 after 28 years (rounding the result up, because after 27 years the investment will not reach $3500)
