3.14159(pi) times radius squared
pi times 24 squared equals 1809.56
now find the area of the smaller circle
pi times 6 squared equals 113.1
now subtract the smaller circle from the bigger circle
1809.56 minus 113.1
answer is 1696.46
For this case, what we must do is multiply the depth of the fish by the fraction of depth of the turtle.
We have then:
(-3/4) * (1/3) = (- 3 * 1) / (4 * 3) = - 1/4 mile
Therefore, the depth of the turtle on the surface of the water is:
-1/4 mile
Answer:
the turtle's depth is:
-1/4 mile
Answer:
answer C is the right one
Step-by-step explanation:
Volume cylinder is area of the (round) surface * height.
The formula for the area of any circle = pi * radius²
pi * radius²
So the formula for the volume is
Volume cylinder = pi * radius² * height
radius = 15 in and height = 6 in
Substitute this in the formula and you get:
Volume cylinder = pi * 15² * 6
Volume cylinder = pi * 225 * 6
Volume cylinder = pi * 1350
so answer C is the right one
Let f be amount of 43% and s be amount of 16%...
s+f=90, f=90-s
(.16s+.43f)/90=.25 using f found above we get:
(.16s+.43(90-s))/90=.25
.16s+38.7-.43s=22.5
-.27s=-16.2
s=60, and since f=90-s, f=30
So the chemist will need to mix 60ml of 16% solution with 30ml of 43% solution to create 90ml of a 25% solution.
Anything less than 2, can even be 1.999999. What ever way the open part is facing is the side that has more than the other.
Step-by-step explanation:
