Answer: 601
Step-by-step explanation:
When the prior estimate of the population proportion is unavailable , then the formula to find the sample size is given by :-
, where E = margin of error
and z* = Critical z-value associated with the confidence level.
As per given , we have
The prior percentage of full-time college students who earn a bachelor's degree in four years or less is not given.
E= 0.04
We know that the critical value for 95% confidence level = z*= 1.960
Then , the required sample size is given by :-
Hence, the required sample size is 601.
Answer:
2nd option
Step-by-step explanation:
Using the sine and cosine ratios in the right triangle
sin82° = = = ( multiply both sides by )
× sin82° = KL , then
KL ≈ 3.28 ( to the nearest hundredth )
cos82° = = = ( multiply both sides by )
× cos82° = ML , then
ML ≈ 0.46 ( to the nearest hundredth )
------------------------------------------------------------
The sum of the 3 angles in a triangle = 180° , so
∠ K = 180° - (90 + 82)° = 180° - 172° = 8°
Answer: x = 40 and y = 40
Step-by-step explanation:
We can write the equation for the area as: x*y = 1600
We can write the equation for the perimeter as: 2x + 2y = 160
An easy way to solve a question like this is to graph both equations on a graphing calculator, if you don't have one on you you can use Desmos
Graph both: y = 1600/x
and
y = 80 - x
Turns out you get x = 40 and y = 40
Question:
Jordyn, Teri, and Morgan are going to have a kite-flying contest. Jordyn and Teri each have one roll of kite string. They also each have 45 yards of extra string. Morgan has three rolls of kite string plus 10 yards of extra string. All the rolls of string are the same length. The girls want to see who can fly their kite the highest.
Since Jordyn and Teri have fewer rolls of kite string, they decide to tie their string together, so their kite can fly higher. Write at least two expressions to show how much kite string Jordyn and Teri have. Let x represent the number of yards of string on one roll.
Answer:
Step-by-step explanation:
From the complete question, we have:
<u>Jordyn & Teri</u>
<u></u><u></u>
<u></u><u></u>
<u></u>
<u>Morgan</u>
<u></u><u></u>
Required
Expression for Jordyn and Morgan
Let the total kite by Jordyn and Teri be represented with y
This is calculated as:
This gives:
1 roll is represented with x.
So:
This can be rewritten as:
Answer:
because you start with 0.001 x10 =0.01
Step-by-step explanation:
ok thx