Hey there,
2 - 8x + 4x + 4
2 - 8(3) + 4(3) + 4
2 - 24 + 12 + 4
-6
Hope this helps :))
<em>~Top♥</em>
Minimum required sample size for a desired margin of error and confidence level when it is a proportion problem: n = (z2÷margin of error2)*p-hat*q-hat
The maximum value of p-hat*q-hat occurs where p-hat = .5 (found by taking the derivative of (p-hat)*(1-p-hat) and setting it equal to 0 to find the maximum. n = ( 2.5762( for 99% confidence interval)÷.0482 )*.5*.5 = 720.028 or 721
640 x 0.30= 192
640-192= 448
448 is the answer
Answer:
7 donuts at $0.36/donut = $2.49
Step-by-step explanation:
$4.27
------------ = unit cost = $0.36/donut
1 dozen
Then: 7 donuts at $0.36/donut = $2.49
