Answer:
Below in bold.
Step-by-step explanation:
a. h after 4 seconds:
h = -16(4)^2 + 256(4)
= -256 + 1024
= 768 ft
b. When the height is 1008 ft
1008 = -16t^2 + 256t
16t^2 - 256t + 1008 = 0
16(t^2 - 16t + 63) = 0
16(t - 7)(t - 9) = 0
t = 7, 9
So it will take 7 seconds to rise to 1008 feet and and after 9 seconds it will pass 1008 on the way down
So the times are 7, 9 seconds.
c. When the ball reaches the ground h = 0:
-16t^2 + 256t = 0
-16t(t - 16) = 0
t - 16 = 0
t = 16 seconds.
<h3>
Answer: -0.196</h3>
======================================================
Explanation:
We're conducting a one proportion Z test.
The hypothesized population proportion is p = 0.53, which is not to be confused with the p-value (unfortunately statistics textbooks seem to overuse the letter 'p'). Luckily this problem is not asking for the p-value.
The sample population proportion is
phat = x/n = 41/79 = 0.518987 approximately
The standard error (SE) is
SE = sqrt(p*(1-p)/n)
SE = sqrt(0.53*(1-0.53)/79)
SE = 0.056153 approximately
Making the test statistic to be
z = (phat - p)/(SE)
z = (0.518987 - 0.53)/0.056153
z = -0.19612487311452
z = -0.196
Which is approximate and rounded to 3 decimal places.
Uh what??
But examples for that would be 5^0 = 1 ; 5830^0 = 1 ; 11111^0 = 1
Answer:
7/20
Step-by-step explanation:
1/2 divided by 1 3/7
Keep Change Flip
1 3/7=10/7
1/2 x 7/10 = 7/20
Answer:
<u>Answer</u><u>:</u><u> </u><u>A</u><u>.</u><u> </u><u>-</u><u>3</u><u>2</u><u>.</u><u>7</u><u>5</u>
• f(n) are the values of the set
• n is the number of items
