9514 1404 393
Answer:
D. a ║ b
Step-by-step explanation:
If we figure the other angle of each linear pair, we can directly compare angles to see if corresponding angles are the same. Where they are the same, the lines are parallel.
Line a is parallel to line b.
Answer:
14:6
Step-by-step explanation:
Answer:
(a)
(b)
Step-by-step explanation:
(a) For using Cramer's rule you need to find matrix and the matrix for each variable. The matrix is formed with the coefficients of the variables in the system. The first step is to accommodate the equations, one under the other, to get more easily.
To get , replace in the matrix A the 1st column with the results of the equations:
To get , replace in the matrix A the 2nd column with the results of the equations:
Apply the rule to solve :
In the case of B2, the determinant is going to be zero. Instead of using the rule, substitute the values of the variable in one of the equations and solve for :
(b) In this system, follow the same steps,ust remember is formed by replacing the 3rd column of A with the results of the equations:
Answer :
P = 72
Explanation :
P = 36 M = 8
M = 16
16 - 8 = 8 ( which is just doubled)
36 + 36 = 72
This is because since m just got doubled then so will p
Answer:
y= 2/5x+4/5
Step-by-step explanation:
identify two points on line m then find it's gradient.
using the gradient of line m find the gradient of the perpendicular line
then use points (3,2) and (x,y) to find it's equation.