Hey there, we are going to use two formula's, the first formula is A=πr², and the second formula is d=2r. Now, we can solve for a, A=1/4πd²=1/4*π*6²=28.27433cm², Therefore, the answer is 28.26 cm 2
Answer:
900 sample size
Step-by-step explanation:
To determine the sample size for a proportion, the margin of error formula is used to determine this:


Where p is the proportion, E is the margin of error, n is the sample size, q = 1 - p,
is the z score.
Since the proportion is not known, the sample size needed to guarantee the confidence interval and error is at p = 0.5 and q = 1 - p = 1 - 0.5 = 0.5
E = 5% = 0.05,
= 3. Hence:

Coordinate points of P are opposite points (b,0)
(-b , 0) is opposite of (b,0)
Answer is the second option (-b,0)
Replace x in the given equation with each value:
a. f(4) = 2(4) -5
= 8-5
=3
b. (f-3) = 2(-3) - 5
= -6 -5
= -11
Answer:
Step-by-step explanation: