Answer:
temperature
Step-by-step explanation:
it dropped by 15 so it subtracted 15. - 15
Answer:
A. 76
B. 150
C. 38
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
The answer is 3 because the blue line goes across the y - axis at 3.
Answer: The determinant of the coefficient matrix is -15 and x = 3, y = 4, z = 1.
Step-by-step explanation: The given system of linear equations is :

We are given to find the determinant of the coefficient matrix and to find the values of x, y and z.
The determinant of the co-efficient matrix is given by

Now, from equations (ii) and (iii), we have

Substituting the value of y and z from equations (iv) and (v) in equation (i), we get

From equations (iv) and (v), we get

Thus, the determinant of the coefficient matrix is -15 and x = 3, y = 4, z = 1.