Let
Vco------------------- >Volume cone
Vcy------------------ >Volume cylinder
r= 8mm
hco----------- > height of cone=18 mm
hcy------------ > height of cylinder =54-18=36 mm
then
Vco=π*r² *hco/3--------- > π*8² *18/3=π*384 mm³
Vcy=π*r² *hcy--------- > π*8² *36=π*2304 mm³
the total cubic millimeters of sand=Vco+Vcy=π*384+π*2304=π*2688
if 10π cubic millimeters --------------------- > 1 seg
π*2688--------------------------------- X
X=π*2688/10π=268.8 seg
the answer is 268.8 seg
The correct answer is 950 miles because $457.50 - $220.00 = $237.50 and $237.50 divided by $0.25 = 950
Hope this helps.
It seems a lot like 120. 60 and 60 rounded is 60 each. 60 + 60 = 120
(sorry if i'm wrong)
Answer:
C. mean: 6.4 and standard deviation: 2.31862028
Step-by-step explanation:
We are given
n=40
p=0.16
q= 1-p = 0.84
mean = np = 40*0.16 = 6.4
standard deviation =
= 
sd = 2.31862028
