Answer:
Step-by-step explanation:
<u>The difference in the amounts is the total interest:</u>
<u>Yearly interest is:</u>
<u>Time in years:</u>
Answer:
c) 0.6827
Step-by-step explanation:
We have to find P(-1<Z<1) by using z-table
P(-1<Z<1) = P(Z<1) – P(Z<-1)
P(-1<Z<1) = 0.841345 - 0.158655
P(-1<Z<1) = 0.682689
P(-1<Z<1) = 0.6827
Answer:
The surface area is equal to 
Step-by-step explanation:
The surface area of the triangular pyramid is equal to the area of its four triangular faces
so
In this problem
![SA=4[\frac{1}{2}(b)(h)]](https://tex.z-dn.net/?f=SA%3D4%5B%5Cfrac%7B1%7D%7B2%7D%28b%29%28h%29%5D)
we have


substitute the values
![SA=4[\frac{1}{2}(15)(13)]=390\ in^{2}](https://tex.z-dn.net/?f=SA%3D4%5B%5Cfrac%7B1%7D%7B2%7D%2815%29%2813%29%5D%3D390%5C%20in%5E%7B2%7D)
1. Below
2. Above
3. Sea Level