Two factors of -5 are -5 and 1. -5 and 1 make a sum of -4, so the equation can be factored into (x-5)(x+1)=0
x-5=0 or x+1=0
x=5 or x=-1
Answer:
7/11
Step-by-step explanation:
- The first female student has 5 choices
- The second has 7 choices
The 3rd has 4 choices
-. (5*7*4)/12C3
Answer:
Third choice from top to bottom.
Step-by-step explanation:
The total amount of students would be exactly - 220 students. So that means reading would be exactly 20% of the students, as of 40/220 = 0.2 = 20%. That means automaticially the third choice would be correct, but let's do more calculations to make sure- 55/220 = 25%, 66/220 = 30%. That means that our answer is in fact correct.
