Δ=88
1) Using the Quadratic Equation to Solve
3x²-8x+1=3
3x²-8x+1-3=3-3
3x² -8x -2=0
2)Let's find the discriminant
Δ= (-8)²-4(3)(-2)
Δ=64 -4(3)(-2)
Δ=88
Answer:
t = 8.69 s
Step-by-step explanation:
The height h of the rocket in feet above the surface of the lake can be modeled by :
Let we need to find the time to reach the ground. When it reach the ground, h = 0
We need to find the value of t.
t = 8.69 s and -2.45 s
Neglecting negative value,
t = 8.69 s
Hence, it will take 8.69 s to reach the ground.
2.5 still if you make it a fraction it would be 2 and 1 1/2 so you can't simplify that any more
Answer:
Step 4
Step-by-step explanation:
Step 4 is incorrect because when you add the number from the right side, -34, you make it a positive coming to the left side, -17, which stays the same. so 34+-17, will give you 17.
This will make Step 4: Addition property of equality: -17x=40
Therefore Step 5 is also incorrect, and should look like: Step 5: Division Property of Equality: x= 40/-17
