-5 is the answer to your question because all you do is plug in -2 into your equation for x
Answer:
3
Step-by-step explanation:
The terms of this given expression are 3x^2, 4y and 1.
Thus, there are three terms.
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Answer:
Step-by-step explanation:
where is the diagram
Answer:
2.225
Step-by-step explanation:
To find how long the object will be in the air, we just need to find the time when the object reaches the ground, that is, f(t) = 0
So, we have that:
0 = −16t2+32t+8
2t2-4t-1 = 0
Using Bhaskara's formula:
Delta = b2 - 4ac = 16 + 8 = 24
sqrt(Delta) = 4.899
t = (-b + sqrt(Delta)) / 2a
t = (4 + 4.899) / 4
t = 2.2248
Rounding to nearest hundredth, we have t = 2.225
