Answer:
(b) 4,445
Step-by-step explanation:
If the researcher would like to be 95% sure that the obtained sample proportion would be within 1.5% of p (the proportion in the entire population of U.S. adults), what sample size should be used?
Given a=0.05, |Z(0.025)|=1.96 (check standard normal table)
So n=(Z/E)^2*p*(1-p)
=(1.96/0.015)^2*0.5*0.5
=4268.444
Take n=4269
Answer:(b) 4,445
okay so what you're gonna do is find the lcm (least common multiple) of four and seven (the days y'all water the plants.)
lemme get it started for ya.
7: 7, 14, 21...
4: 4, 8, 12, 16...
and once you find a number that they both have, it's your answer.
What’s is side AB if I don’t have that I don’t know how to figure out how they correspond
Total number of hours she schduled to play the game = 3
hours.
Let us convert mixed fraction into improper fraction

Duration of each round =
.
In order to find the number of rounds Nicole can play, we need to divide total number of hours by duration of each round.
÷ 
Converting division sign into multiplication flips the second fraction.

Crossing out 12 by 4, we get 3 on the top of second fraction.


Because problem is about number of rounds.
So, total number of round would be 5.
Answer:
x ≈ 25.4 Km
Step-by-step explanation:
Using the tangent ratio in the right triangle on the right
tan54° =
=
( multiply both sides by 17 )
17 × tan54° = opp , thus
opp ≈ 23.4
-------------------------------------------
Using the cosine ratio in the right triangle on the left
cos23° =
=
( multiply both sides by x )
x × cos23° = 23.4 ( divide both sides by cos23° )
x =
≈ 25. 4 Km ( to the nearest tenth )