Discover the area of a circle with a diameter of 17 feet ?

A≈226.98 ft²

Step-by-step explanation:

The formula for area of a circle is A=πr². The formula doesn't include diameter , but we can certainly find the radius from the diameter.

d=2r

17=2r

r=17/2=8.5 ft

Now that we have the radius, we can plug it in to area formula.

A=πr²

A=π(8.5ft)²

A=π72.25ft²

A≈226.98 ft²

Area of a circle: A = πr²

Get the radius by dividing the diameter by 2.

17 / 2 = 8.5

Now, solve with the given values.

A = π(8.5)²

A = 72.25π

A = 226.865

Therefore, the area is 226.865ft³

Best of Luck!

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560