Answer:
Step-by-step explanation:
you see 12=12 (side)
6=6 (side)
116°=116°(angle between sides)
now what can be the answer?
two sides and one angle equal
so SAS
Step-by-step explanation:
y = cost, m = miles driven
y = 2m +33
A = first angle, b = 2nd angle, c = 3rd angle
a = 2b
c = b + 80
a + b + c = 180
2b + b + b + 80 = 180
4b + 80 = 180
4b = 180 - 80
4b = 100
b = 100/4
b = 25 <=== 2nd angle
a = 2b
a = 2(25)
a = 50 <=== 1st angle
c = b + 80
c = 25 + 80
c = 105 <=== 3rd angle
4, 5, 6, 7, 8, . . .
a = 4, d = 5 - 4 = 1, n = 150
Sn = n/2[2a + (n - 1)d]
S(150) = 150/2[2(4) + (150 - 1)1] = 75[8 + 149] = 75(157) = 11,775