Answer:
105 degrees i think
Step-by-step explanation:
E=75
H=105
75+105=180
Solvin by addition-elimination.
-(2x+y=7)
5x+y=9
-------------------
3x=2 ⇒x=2//3
5*(2x+y=7)
-2*(5x+y=9)
-------------------
3y=17 ⇒y=17/3
Solution: x=2/3; y=17/3
solving by equalization
2x+y=7 ⇒ y=7-2x
5x+y=9 ⇒ y=9-5x
7-2x=9-5x
-2x+5x=9-7
3x=2
x=2/3
y=7-2x
y=7-2*(2/3)
y=7 - 4/3 = (21-4)/3=17/3
Solution: x=2/3 and y =17/3.
solving by substituion
2x+y=7 ⇒ y=7-2x
5x+(7-2x)=9
5x-2x=9-7
3x=2
x=2/3
y=7-2x
y=7- 2*(2/3)
y=7 - 4/3=(21-4) / 3=17/3
Solution: x=2/3 and y=17/3
Answer:
The product of 
is 
.
Step-by-step explanation:
A matrix is a rectangular arrangement of numbers into rows and columns.
Matrix multiplication refers to the product of two matrices.
The main condition of matrix multiplication is that the number of columns of the 1st matrix must equal to the number of rows of the 2nd one.
To find the product of
Answer:
the answer is c
Step-by-step explanation:
l
Answer:
y-4= -1/2(x-4)
Step-by-step explanation:
First you have to find the slope to write it in point slope
to do this you find change in Y over change in X
From -4 to 4 is postivite 8 and from 8 to 4 its -4
Now you do -4 divided by 8 and get -0.5 or -1/2 for slope now pick one of the points and put it in the formula y-y1=m(x-x1)
