The volume of a cone is V= (1/3)pi r²h
it was given
h=12cm
radius=3cm
the volume of the first cone is V1= 1/3)pi r²h1
where h1= h/2=6cm
so its volume is V1=1/3)xpix3²x6=56.52cm^3
and since the two cones are identical so V1=V2=<span>56.52cm^3,
we need </span><span>56.52cm^3 or salt </span>
11 miles in 1/4 hour
1/4 of an hour is 15 minutes
so 11 in 15 minutes
x /60 = 11/15
cross multiply
x*15 = 60 * 11
15x = 660
divide both sides by 15
x = 44
the unit rate of the hikers in miles per hour is 44 mph.
You can also solve like this
1/4 of hour is 15 minutes
to get to the whole hour you would multiply by four
so you'd (11miles in 1/4 hour) * 4
44 miles in 1 hour
Hope this helps :)
Answer:
Step-by-step explanation:
15a - 6
You have to use the distributive property.
No it doesn't.
When x=2,
x + 2 = 4
and
x² + 4 = 4 + 4 = 8
If you want (x + 2) to be equal to (x² + 4),
then
either x = 0.5 + 1.323 i
or
x = 0.5 - 1.323 i . ' i ' = √-1
There are no other ways to do it.
