Answer:
a=1
Step-by-step explanation:
y=ax^2+bx+c
y=x^2+x-20
a=1
b=1
c=-20
Answer:
If there are 10 students taking only chemistry, 9 students taking only physics, and 5 students only taking both chemisty and 16 students are taking neither; I would add 10+9+5+16=40 (total students) and divide 10/40 (25% chemistry) 9/40 (22.5% physics) 5/40 (12.5% both) 16/40 (40% neither)
Step-by-step explanation:
1. Determine a single event with a single outcome.
2. Identify the total number of outcomes that can occur.
3. Divide the number of events by the number of possible outcomes.
Answer:
Domain: x = all reals
Range: y is less than or equal to -4
3 + 3 + 3 + 3 + 5 + 5 = 22
the perimeter is 22 cm
