9514 1404 393
Answer:
d 2
Step-by-step explanation:
The system of equations can be written in augmented matrix form as ...
![\displaystyle\left[\begin{array}{cc|c}-\frac{1}{2}&3&-4\\-1&-1&-1\end{array}\right]](https://tex.z-dn.net/?f=%5Cdisplaystyle%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7Cc%7D-%5Cfrac%7B1%7D%7B2%7D%263%26-4%5C%5C-1%26-1%26-1%5Cend%7Barray%7D%5Cright%5D)
The value of x found by Cramer's rule is the ratio of two determinants. The numerator is the coefficient matrix with the x-column replaced by the constant column. The denominator is the coefficient matrix.
The equation to find the interior angles of a regular polygon is S = (n - 2)*180/n, so you do 16-2=14, then multiply 14 by 180 to get 2520. You then divide that by 16 to get 157.5.
First, let's make it an improper fraction:
-9/2 * 5/2 = -45/4 = -11 1/4
-11 1/4
Answer:
52 quarters
Step-by-step explanation:
-We know that a quarter dollar is equivalent to $0.25
-Given that Haley has $13, we multiply this amount by 4 since $1 has 4 quarters to obtain the number of quarters:
Hence, Hayley will get 52 quarters.
