Answer: 
Step-by-step explanation:
You can use the Method of substitution.
Substitute the equation 
into the equation 
and then you must solve for the variable x:
Apply Distributive property:
Subtract 12 from both sides of the equation and then add the like terms. Then you get:
M=(1+7/2,2+10/2)=(4,6)
mf=squr(4-7)^2+(6-10)^2=5
Answer:
15°
Step-by-step explanation:
2x+5=3x
5=3x-2x
5=x
Now we can solve the angle.
<BAD=2x+5 = 2(5)+5 = 10+5 = 15°
Answer:
The volume of the prism is of 1368 cubic m.
Step-by-step explanation:
Volume of a rectangular prism:
The volume of a rectangular prism is the multiplication of the lengths of its dimensions.
In this question:
Dimensions of 8m, 9m and 19m. So
8*9*19 = 1368.
Dimensions in meters, so volume in cubic meters.
The volume of the prism is of 1368 cubic m.
