<h2>
Answer with explanation:</h2><h2>
</h2><h3>The confidence interval for population proportion is given by :_</h3>
Where : 
is the margin of error , n is the sample size , p is the sample proportion of success and 
is the significance level.
Given : Confidence level : 
Then , Significance level : 
Sample size : 
Sample proportion of respondents chose chocolate pie: 
Margin of error : 
Answer:
x = 40
Step-by-step explanation:
Using Pythagoras' identity in the right triangle
x² + 30² = 50²
x² + 900 = 2500 ( subtract 900 from both sides )
x² = 1600 ( take the square root of both sides )
x = 
= 40
Answer:
a) Surface area = 616 cm²
b) Volume = V = 1083 cm³
Step-by-step explanation:
Surface area and volume of a regular triangular pyramid that has a base edge of 16 cm and a slant height of 15 cm
a) Formula for surface area = Base area × 1/2(perimeter × slant height)
Base area = Base edge²
=( 16 cm)² = 256 cm²
Perimeter = Base edge × 3
= 16 cm × 3 = 48 cm
Hence:
Surface Area = 256 cm² + 1/2(48 × 15)
= 256 cm² + 360 cm²
= 616 cm²
b) Volume = 1/3 × Base area × Height
1082.758616785cm³
Approximately = 1083 cm³
Answer: 700
84 is 12% of What Number:
12% of 700 is 84
100% of 700 is 700, therefore 12 percent of 700 equals 84.
To check this, 12% of 700 IS 84 (Check on Calculator)
Hope this helps!!
Answer:
8400 yd^2
Step-by-step explanation:
600x 6 because its six times
3600
L+L+W+W=p
8400 yd ^2
