1/2 * 1/2 * 1/2 = 1/8 <==
The interest Ernesto will earn in 1 year to the nearest cent is 2200 cents.
<u>Given the following data:</u>
To calculate how much interest Ernesto will earn in 1 year to the nearest cent:
<h3>How to calculate
compound interest.</h3>
Mathematically, compound interest is given by this formula:
![B=P(1+r)^t](https://tex.z-dn.net/?f=B%3DP%281%2Br%29%5Et)
<u>Where:</u>
- P is the principal or starting amount.
- T is the time measured in years.
Substituting the given parameters into the formula, we have;
![B=20(1+0.1)^1\\\\B=20(1.1)](https://tex.z-dn.net/?f=B%3D20%281%2B0.1%29%5E1%5C%5C%5C%5CB%3D20%281.1%29)
B = $22.
<u>To cents:</u>
B = ![22 \times 100](https://tex.z-dn.net/?f=22%20%5Ctimes%20100)
B = 2200 cents.
Read more on interest here: brainly.com/question/24341207
Answer: I think its B and C
Answer:
Option B is correct
Step-by-step explanation:
The multiply of matrix A by matrix B that is inverse of A, must result in an identity matrix that has form shown in option B
Hope this helps!
The area formula for a rectangle is A = L*W. We have the area as 3197, now we just have to find a way to directly relate the length to the width with only one unknown, since we can't have 2 unknowns. The problem tells us that the length is 22 in. less than 7xW. That will be expressed as L=7W-22, and width is just W. Filling in we have 3197=W(7W-22). Distributing through the parenthesis we have
![3197=7W^2-22W](https://tex.z-dn.net/?f=3197%3D7W%5E2-22W)
. Since we have to solve for x and the only way we can do that is by factoring, we will move the 3197 over to the other side by subtraction and then factor the quadratic.
![7W^2-22W-3197=0](https://tex.z-dn.net/?f=7W%5E2-22W-3197%3D0)
. I recommend putting that into the quadratic formula, and when you do you get W values of 23 and -19.857 The only 2 things in math that will never EVER be negative are time and distance/length. And since one of our lengths there is negative we know that that is not the one we will use. Therefore, the width is 23. The length then is L=7(23)-22 which is 139