Answer:
17900
Step-by-step explanation:
First term a = -19
common difference d = -15-(-19) = 4
number of terms, n = 100
sum of first 100 terms,
n/2(2a+(n-1)d)
= 100/2(2×(-19)+(100-1)4)
= 50×(-38+99×4)
= 50×358
= 17900
Answer:
B
Step-by-step explanation:
i think
Answer:
x = 147
Step-by-step explanation:
33 and x form a straight line which means they add to 180
x+33 =180
x = 180-33
x = 147
Answer:
y-6=3/2(x+8)
Step-by-step explanation:
so the point slope form is y-y₁=m(x-x₁)
so enter the points (-8, 6)
y-6= 3/2(x-(-8))
y-6=3/2(x+8)