Answer:
let missing number be x
63/21=9/x
or. 63x=9*21
or 63x=189
or x=189/63
or x=3
. missing number of this proportion=3
9514 1404 393
Answer:
1/7
Step-by-step explanation:
The slope formula is useful for this.
m = (y2 -y1)/(x2 -x1)
m = (4 -3)/(4 -(-3)) = 1/7
The gradient of the line segment is 1/7.
Obtuse, accute, obtuse, acute, A.
Solving for L:
P = 2L + 2W
P - 2W = 2L
(P - 2W) / 2 = L
L = (P - 2W) / 2
