Answer:
a) mCD=7
b) mCF=7
c) mFD=7
d) F(2,-14)
Step-by-step explanation:
Let the coordinates of C and D be (4,0) and (0,-28) respectively and F is the midpoint of CD
a) mCD
Slope formula
mCD=7
b) mCF
mCF=mCD
Hence mCF=7
c) mFD
mFD=mCD
Hence mFD=7
d) Coordinates of F : mid point formula
Mid points Formula
coordinates of F are (2,-14)
Answer:
25/4
Step-by-step explanation:
68x=425
x=6.25
25/4=6.25
Answer:
a) (-1,4.5)
b)10.63 units
c)7/8
Step-by-step explanation:
a) To find this, we use the midpoint formula
(x,y) = (x1 + x2)/2 , (y1 + y2)/2
(x1,y1) = (3,8)
(x2,y2) = (-5,1)
(x,y) = (3 -5)/2 , (8 + 1)/2 = (-1, 4.5)
b) To calculate the distance D between two points, we use the formula;
D = √(x2-x1)^2 + (y2-y1)^2
D = √(-5-3)^2 + (1-8)^2
D = √(-8)^2 + (-7)^2
D = √64 + 49
D = √113
D = 10.63 units
C) We use the slope formula here
m = (y2-y1)/(x2-x1)
m = (1-8)/(-5-3) = -7/-8 = 7/8
Answer:
For every 1 inch on the drawing, it's 3 feet in real life.
Step-by-step explanation:
First, consider the length. The length is 6 inches on the drawing, while in actuality it is 18 feet. So every 6 inches represents 18 feet. Let's make a ratio; 6 : 18. To simplify it, divide both sides by 6; 6 : 18 = 1 : 3.
For every 1 inch on the drawing, it's 3 feet in real life.
