Answer:
<h3>B. -84</h3>
Step-by-step explanation:
Taking the determinant of the matrices we will have;
= 4x(5y) - 2x(3y)
= 20xy - 6xy
= 14xy
Given x = -2 and y = 3
Determinant = 14(-2)(3)
Determinant = -28*3
Determinant = -84
Let
x--------> the amount of gummy candy in pounds
y--------> the amount of jelly beans in pounds
z--------> the amount of hard candy in pounds
we know that
--------> equation 
--------> equation 
--------> equation 
Substitute equation in equation and equation
![[2y]+y+z=9](https://tex.z-dn.net/?f=%5B2y%5D%2By%2Bz%3D9)
-----> 
------> equation 
![2[2y]+3y+3z=23](https://tex.z-dn.net/?f=2%5B2y%5D%2B3y%2B3z%3D23)
-----> 
------> equation 
using a graphing tool ------> Solve the system of equations
see the attached figure
the solution is the point 
<u>Find the value of x</u>
therefore
<u>the answer is</u>
the amount of gummy candy is 
the amount of jelly beans is 
the amount of hard candy is 
Answer:
3.
7.608
Step-by-step explanation:
An irrational number is any number which can't be written as a fraction this way. For example, pi and the square root of two cannot be expressed as a fraction of two whole numbers, so they are both irrational.
if we make the respective accounts in the first and second problem we will see that they are irrational numbers
the fourth is a periodic number, which falls within the irrational
the only rational is the third
