Answer:
28.45
Step-by-step explanation:
33.04-1.75=31.29
31.29/1.10=28.45
D. Because water is a compound of two elements so it cannot be an element nor a pure substance
Answer:
5*8+14=54
Step-by-step explanation:
5*x+14= 54
so
54-14= 40
40/5=8
so x=8
Answer:
(1,-4)
Step-by-step explanation:
Hello!
In the image attached, I graphed the Linear Equations, and the solution is at the point of intersection of the two lines.
The point is on x-value 1 and y-value -4, so the solution is (1,-4).
step 1
find the slope AB
A = (-3, -1) and B = (4, 4)
m=(y2-y1)/(x2-x1)------> m=(4+1)/(4+3)------> m=5/7
step 2
find the slope mBC
we know that
if two lines are perpendicular
then
the product of their slopes is equal to -1
so
mAB*mBC=-1-------> mBC=-1/mAB-----> -1/(5/7)-----> mBC=-7/5
step 3
with mBC and the point B = (4, 4) find the equation of the line BC
y-y1=m*(x-x1)-----> y-4=(-7/5)*(x-4)-----> y=-(7/5)*x+(28/5)+4---> y=-(7/5)*x+(48/5)
y=-1.4*x+9.6
therefore
the answer is
the equation of the line BC is
y=-1.4*x+9.6
see the attached figure