The correct answer for USATesprep is
C) 3 cm, 4 cm, 5 cm
We evaluate b^2 - 4ac. If the answer is positive, then there are two real solutions. If it is zero, there is one real solution. If it is negative, there are 2 complex solutions. In this equation, a = 1, b = 5, c = 7. Now we plug in the numbers.
Because this answer is positive, there are two real solutions.
Answer: 6
Step-by-step explanation:
Answer:
the answer is 60
Step-by-step explanation:
because 2(30)=60
Answer:
130
Step-by-step explanation:
100+30=130