Answer:
Since time can't be negative, the only possible solution is 0.72 s.
Step-by-step explanation:
When the ball hits the ground its height is equal to 0, so we must find a value for "t" that results in h = 0. We have:

Since time can't be negative, the only possible solution is 0.72 s.
<span>the answer would be 0.27777777777</span>
There are 8 proper fractions with a denominator of 30 that are irreducible:
1/30, 7/30, 11/30, 13/30, 17/30, 19/30, 23/30, 29/30
We cannot count any even numerators, as 30 is even and would therefore make the fraction reducible.
We cannot count any numerators that are a multiple of 3, as it is a factor of 30. Likewise we cannot count any numerators that are a multiple of 5.
Answer:
34π/3 (= 11.3 π ) mi²
Step-by-step explanation:
(see attached for reference)
area of sector is given by:
A = (θ/360) π r²
where
θ = angle of sector (given as 255°)
r = radius (given as 4 miles)
substituting the known values into the formula:
A = (θ/360) π r²
A = (255/360) π (4)²
A = (255/360) π (16)
A = 34π/3 mi²
A = 11.3 π mi²
edit: expressed answer in improper fraction form to match answer choices.