Answer:
x = 13
Step-by-step explanation:
ΔRST≈ΔYSZ
therefore:
RT/ST = YZ/SZ
(3x-7)/40 = (2x+2)/35
cross-multiply:
40(2x+2) = 35(3x-7)
80x+80 = 105x-245
80 = 25x-245
325 = 25x
325/25 = x
x = 13
Answer:
There are 7 teams in the league
Step-by-step explanation:
Given that the number of games is given by:

The equation will be used to determine the number of games. As we already know, that 21 games are scheduled which means G(n) is 21 so we have to find n when G(n) is 21
Putting this mathematically

Multiplying equation by 2

As the number of teams cannot be negative, the number of teams in league are 7.
Hence,
There are 7 teams in the league
F(-4) = 3 x 2 - 5(-4) + 4
3x2= 6
-5(-4)= 20
6-20= -14
-14+4= -10
f(-4) = -10
1 and 4
All angles and sides are congruent:)
Answer:
0.4
40%
Step-by-step explanation: