Answer:
y = 14
Step-by-step explanation:
Since AC = BC then the triangle is isosceles and the base angles are congruent, that is
∠A = ∠B = 50°, thus
∠C = 180 - (50 + 50) ← sum of angles in Δ = 180°
= 180 - 100 = 80°, hence
5y + 10 = 80 ( subtract 10 from both sides )
5y = 70 ( divide both sides by 5 )
y = 14
Answer: Use a random number generator ranging from 1 to 10 and assign 1 through 4 as the prize and 5 through 10 as no prize.
Step-by-step explanation:
I just did the i-ready lesson, here you go mate! ^-^
It is actually the top one on the second picture because if you were to rotate it 180 degrees, it would end up on the same points
X= 2 and y=-2 check by multiplying
There are 
ways of picking 2 of the 10 available positions for a 0. 8 positions remain.
There are 
ways of picking 3 of the 8 available positions for a 1. 5 positions remain, but we're filling all of them with 2s, and there's 
way of doing that.
So we have
The last expression has a more compact form in terms of the so-called multinomial coefficient,
