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lawyer [7]
2 years ago
13

Uhm I need help.. If I threw a ball vertically at an initial speed of 34.5 m/s, how many seconds would it take to reach its maxi

mum height?
Mathematics
1 answer:
e-lub [12.9K]2 years ago
5 0

Answer:

3.8 seconds to reach the maximum height

Hope I helped have a nice day!:)

Step-by-step explanation:

You might be interested in
The results of a common standardized test used in psychology research is designed so that the population mean is 145 and the sta
anygoal [31]

The value 155 is zero standard deviations from the mean, because x = μ , and therefore z = 0.

<h3>What is Standard Deviation?</h3>

The standard deviation is a measure of the amount of variation or dispersion of a set of values.

The key concept we need to manage here is the z-scores , and we can obtain a z-score using the next formula:

z = (x - μ)/σ      ..............[1]

Where

z is the z-score.

x is the raw score: an observation from the normally distributed data that we want standardize using [1].

μ is the population mean.

σ is the population standard deviation.

These standardized values have always the same probability in the standard normal distribution, and this is the advantage of using it for calculating probabilities for normally distributed data.

A subject earns a score of 155.

From the question, we know that:

x = 155.

μ = 155

σ = 50

Having into account all the previous information, we can say that the raw score, x = 155, is zero standard deviations units from the mean. The subject earned a score that equals the population mean. Then, using [1]:

z = (x - μ)/σ

z = (155 - 155) / 50

z = 0/50

z = 0

As we say before, the z-score "tells us" the distance from the population mean, and in this case this value equals zero:  

x = μ

Therefore, z = 0

So, the value 155 is zero standard deviations from the [population] mean.

Learn more about Standard Deviation from:

brainly.com/question/13905583

#SPJ1

8 0
2 years ago
Michael and Daniel are on a team together. Michael scores 5 points on his turn, but Daniel loses 5 points on his turn.
Tomtit [17]

Answer: They don’t score any points, because since micheal scored 5 points, but Daniel lost those 5 points. They still have 0

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
PLEASEE HELPP MEEEE!!!!!!!!! PLEASEE!!!!!!!!!!!!!!!<br><br> what is the value of x?
andreev551 [17]
..........................
3 0
3 years ago
Consider the graph of the quadratic function y=3x↑2↓-3x-6.what are the solutions of the quadratic equation 0=3x↑2↓-3x-6
Shkiper50 [21]
X = 2 or -1

factors to 3(x-2)(x+1)=0
7 0
3 years ago
Find at least 3 numbers that are palindromes and have square roots that are palindromes
Artemon [7]

Hey there!

Palindromes are numbers that can be written the same way backwards, such as 101 and 12321. You're looking for some numbers which are palindromes, and so are their square numbers.

Alright, I'll give you four of those:

  1. 121 is a palindrome, and its square root is 11, both palindromes. 11 x 11 = 121
  2. 484 is a palindrome, and its square root is 22, both palindromes. 22 x 22 = 484
  3. 10201 is a palindrome, and its square root is 101, both palindromes. 101 x 101 = 10201
  4. 12321 is a palindrome, and its square root is 111, both palinromes. 111 x 111 = 12321

Hope this helps!

7 0
2 years ago
Read 2 more answers
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