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timofeeve [1]
3 years ago
6

PLEASE HELP SOON I DONT UNDERSTAND THIS QUIZ

Mathematics
1 answer:
Fantom [35]3 years ago
6 0

1. h₀ = 70  

v₀ = 0 since the rock is dropped it has no initial velocity  

when the rock hits the ground the height = 0  

plug into the formula  

0 = -4.9t² + 0(t) + 70  

0 = -4.9t² + 70  

Add 4.9t² to both sides  

4.9t² = 70  

Divide both sides by 4.9  

t² = 14.2857142857  

Take the square root of both sides  

t = 3.7796447301  

t ≈ 3.8 seconds

I am not doing the rest I only did one just to help you understand a bit more

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x > 1 * 3
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The correct result would be x > 3.
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2 years ago
Simplify 5(2) x 5(5)x5
anastassius [24]
First you would have to multiply everything by the parenthesis
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3 0
3 years ago
Read 2 more answers
Consider two persons. The age of one persoon isestimated between 25 and 35. The age of the other person isestimated between 15 a
Andrei [34K]

Answer:

Q1. The estimated sum of the two people are between 40 and 55 years old.

Q2. The first person is between 10 and 15 years older.

Step-by-step explanation:

We are given Age Range's for 2 people. The first question is asking for the sum of the two people's ages. In this case we can just <u><em>add</em></u> the two minimum ages together and then the two maximum ages like so,

<u>min:</u> 25 + 15 = 40

<u>max:</u> 35 + 20 = 55

So the estimated sum of the two people are between 40 and 55 years old.

The second question asks how much older the First person is from the Second person. We can calculate this by <u><em>subtracting</em></u> both age ranges like so,

<u>min:</u> 25 - 15 = 10

<u>max:</u> 35 - 20 = 15

So the first person is between 10 and 15 years older.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

7 0
3 years ago
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