Jackie and a classmate spent a total of 20 hrs working on a chemistry project. Jackie’s classmate spent 2 hrs less time working
1 answer:
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Answer:
seconds
Step-by-step explanation:
When the ball hits the ground, its height will obviously be 0. Therefore, you can set up the equation the following way:
Plugging this into the quadratic equation, you get:
Since the time must be positive, it takes the ball seconds to hit the ground, or around 3.828. Hope this helps!
Answer:
<
<
< 2.5
Step-by-step explanation:
Given the following numbers, , let's express each as whole or decimal numbers, to find out the least to the greatest.
≈ 2.2
2.5 (already in decimal form)
≈ 1.7
From the least to the greatest, we have:
<
<
< 2.5