Answer:
(a) = 168 and (b) = 3 tires
(5,-2)
(-3,2)
5 and -3 are y you choose which one to be one and which one to be two. the y and the x have to be over each other. but you choose which one to be y1 and y2
y1-y2
_____
x1-x2
the answer would be -2
Answer:
I can't you didn't give the names of points on the line
Step-by-step explanation:
Answer:
125
Step-by-step explanation:
For arithmetic sequence: aₙ = a₁ + (n-1)d Sₙ = n/2 * (a₁ + aₙ)
a1+a4+a7+a10 = a₁ + (a₁ + 3d) + (a₁ + 6d) + (a₁ + 9d) = 4a₁ + 18d = 2 * (2a₁ + 9d)
2 * (2a₁ + 9d) = 50
2a₁ + 9d = 25
a1+a2+a3...+a10 = 10/2 * (a₁ + a₁₀) = 5 * (a₁ + a₁ + 9d) = 5 * (2a₁ + 9d)
a1+a2+a3...+a10 = 5 * 25 = 125