Answer:
The answer is 792.
Step-by-step explanation:
I got the answer by first imagining how the 3d shape looks ike. Since one of the sqaure base length is 11 I found the base surface area by doing 11 times 11.My answer was 132. The since one of the slant length of the pyramid's triangle is 15, I did 11 times 15, my answer was 165. There are four triangles in the pyramid so I did 165 times 4, my answer was 660.
All the triangle surface area is 660 plus the sqaure surface are which is 132, that gave me my answer 792.
Answer:
B
Step-by-step explanation:
The recommended sample size n for point estimates is:
n = NX / (N + X - 1)
where N is the population size, and X is defined as:
X = Z² p (1 - p) / E²
where Z is the critical value, p is the sample proportion, and E is the margin of error.
Assume a confidence level of level of 95% and a margin of error of 5%.
α = 0.05, Z(α/2) = 1.96
E = 0.05
Of the 40 units tested, 2 had lifespans less than 26 days. So the proportion is:
p = 2/40 = 0.05
Therefore:
X = (1.96)² (0.05) (1 - 0.05) / (0.05)²
X = 73
Given N = 2000:
n = (2000) (73) / (2000 + 73 - 1)
n = 70.45
Rounding, the recommended sample size is 70.
Based on the fact that Duffs Co. dividends grow at 24% for three years and then 6%, the current share price of the company is $63.29.
<h3>What is Duffs Co. current price?</h3>
First, find the price of the stock in year 3 when the stock grows at 6%:
= (1.90 x 1.24³ x 1.06) / (0.11 - 0.06)
= $76.79
This amount is the terminal value. You are to take the present value of this amount along with the present value of the dividends up to year 3:
= ((1.90 x 1.24) / 1.11) + ((1.90 x 1.24²) / 1.11²) + ((1.90 x 1.24³) / 1.11³) + 76.79 / 1.11³
= $63.29
Find out more on solving for current share price at brainly.com/question/15798462
#SPJ1
Answer:
557.8 square inches
each square is 5". the base is 4x4 squares- so 20 inches square. 20x20= 400sq inches.
the semicircle at the top is 20 inches in diameter, which makes the radius 10 inches.
pi× 10^2= 314.16.
duvide that by 2 to get a semicircle- 157.8
so, the total area is the 400+ 157.8, for a total area of 557.8 square inches
Answer:
Step-by-step explanation:
a.
An implicit expression is a relation of the form y = f(x) where f is a a function with x as a variable.
On integrating both sides, we get
We know that 
.
Therefore,
![\int \frac{dy}{y(4-y)}=\int \frac{1}{2}\,dt\\\frac{1}{4}\int \frac{1}{y}+\frac{1}{4-y}\,dy=\int \frac{1}{2}\,dt\\\frac{1}{4}\left [ \ln y-\ln (4-y) \right ] =\frac{t}{2}+C](https://tex.z-dn.net/?f=%5Cint%20%5Cfrac%7Bdy%7D%7By%284-y%29%7D%3D%5Cint%20%5Cfrac%7B1%7D%7B2%7D%5C%2Cdt%5C%5C%5Cfrac%7B1%7D%7B4%7D%5Cint%20%5Cfrac%7B1%7D%7By%7D%2B%5Cfrac%7B1%7D%7B4-y%7D%5C%2Cdy%3D%5Cint%20%5Cfrac%7B1%7D%7B2%7D%5C%2Cdt%5C%5C%5Cfrac%7B1%7D%7B4%7D%5Cleft%20%5B%20%5Cln%20y-%5Cln%20%284-y%29%20%5Cright%20%5D%20%3D%5Cfrac%7Bt%7D%7B2%7D%2BC)
As 
,
So, ![\frac{1}{4}\left [ \ln y-\ln (4-y) \right ] =\frac{t}{2}-\frac{\ln 3}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B4%7D%5Cleft%20%5B%20%5Cln%20y-%5Cln%20%284-y%29%20%5Cright%20%5D%20%3D%5Cfrac%7Bt%7D%7B2%7D-%5Cfrac%7B%5Cln%203%7D%7B4%7D)
b.
![\frac{1}{4}\left [ \ln y-\ln (4-y) \right ] =\frac{t}{2}-\frac{\ln 3}{4}\\\ln y-\ln (4-y)=2t-\ln 3\\\ln \left ( \frac{y}{4-y} \right )=2t-\ln 3\\\frac{y}{4-y}=e^{2t-\ln 3}\\y=(4-y)e^{2t-\ln 3}\\y\left ( 1+e^{2t-\ln 3}\\ \right )=4e^{2t-\ln 3}\\y=\frac{4e^{2t-\ln 3}}{1+e^{2t-\ln 3}}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B4%7D%5Cleft%20%5B%20%5Cln%20y-%5Cln%20%284-y%29%20%5Cright%20%5D%20%3D%5Cfrac%7Bt%7D%7B2%7D-%5Cfrac%7B%5Cln%203%7D%7B4%7D%5C%5C%5Cln%20y-%5Cln%20%284-y%29%3D2t-%5Cln%203%5C%5C%5Cln%20%5Cleft%20%28%20%5Cfrac%7By%7D%7B4-y%7D%20%5Cright%20%29%3D2t-%5Cln%203%5C%5C%5Cfrac%7By%7D%7B4-y%7D%3De%5E%7B2t-%5Cln%203%7D%5C%5Cy%3D%284-y%29e%5E%7B2t-%5Cln%203%7D%5C%5Cy%5Cleft%20%28%201%2Be%5E%7B2t-%5Cln%203%7D%5C%5C%20%5Cright%20%29%3D4e%5E%7B2t-%5Cln%203%7D%5C%5Cy%3D%5Cfrac%7B4e%5E%7B2t-%5Cln%203%7D%7D%7B1%2Be%5E%7B2t-%5Cln%203%7D%7D)
