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soldi70 [24.7K]
3 years ago
8

What is the potential energy of a 500-N pole-vaulter when she is 4 m above the ground?

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
7 0

Answer:

2000J

Step-by-step explanation:

mg=500

h(height)=4

500 x 4 = 2000J

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Answer:

x<=10

Step-by-step explanation:

2x<= 32-12

2x<= 20

x<= 20/2

x<= 10

4 0
2 years ago
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3 years ago
Systems of equations with different slopes and different y-intercepts have one solution?​
Artemon [7]

Step-by-step explanation:

The systems of linear equations can have:

1. No solution: When the lines have the same slope but different y-intercept. This means that the lines are parallel and never intersect, therefore, the system of equations has no solution.

2. One solution: When the lines have different slopes and intersect at one point in the plane. The point of intersection will be the solution of the system

3. Infinitely many solutions: When the lines have the same slope and the y-intercepts are equal. This means that the equations represents the same line and there are infinite number of solution.

Therefore, based on the explained above, the conclusion is: Systems of equations with different slopes and different y-intercepts never have more than one solution.

6 0
3 years ago
In a certain company, all employees are either beta employees or standard employees. In this company, 25% of the beta employees
marissa [1.9K]

In addition to the question, the following conditions must be met:

(1) M > 100

(2) more than 130 employees participate in the voluntary equity program

Answer:

Value of A is 200

Step-by-step explanation:

In this scenario when we divide 100 by the percentage of each employee category we will get a proportion that the number of employees must obey.

This is illustrated below:

For Beta employees 100/25= 4

So the number of employees that are Beta must be divisible by 4

For Standard employees 100/17 = 5.882

Since fractions of employees cannot be obtained, in this case the number of employees must be a multiple of 100

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The various combinations are:

1. Beta employees 500 and Standard employees 100

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2. Beta employees are 300 and Standard employees are 300

Survey participants = (0.25 * 300) + (0.17 * 300) = 126

This does not satisfy condition of survey participants >130

3. Beta employees 400 and Standard employees 200

Survey participants = (0.25 * 400) + (0.17 * 200) = 134

This satisfies conditions of >130 survey participants and Standard employees >100

So correct value of S is 200

4 0
4 years ago
A sum of money becomes 8/5 of itself in 5 years at a certain rate of simple interest. Find the rate of interest???​
pogonyaev
The rate of intrest is 5 because i said so
3 0
3 years ago
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