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Ludmilka [50]
4 years ago
9

Explain, why in a real machine the output work is always less than the input work.

Mathematics
1 answer:
OLga [1]4 years ago
7 0
Because some of the work input is turned into waste byproducts like heat. A simple machine has friction to overcome, and by doing that heat is created
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Consider the following quadric equation
a_sh-v [17]

Answer:

21x^2 - 23x - 20 = 0

Step-by-step explanation:

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3 years ago
Graph f(x) =<br> x and g(x) = -1/3x+2<br> on the same coordinate plane.
Vesnalui [34]
It’s not too hard,

I hope that helps.

6 0
3 years ago
There are 5 times as many yellow labs as terriers in the dog park .if there are a total of 18 dogs how many dogs are terriers?
tekilochka [14]
Let t = number of terriers
1 x t = number of total terriers
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8 0
4 years ago
22% of all resumes received by a corporation for a management position are from females. 18 resumes will be received tomorrow.
Vladimir79 [104]

Answer:

5.80% probability that exactly 1 resume will be from females.

Step-by-step explanation:

For each resume received by the corporation, there are only two possible outcomes. Either they are from a female, or they are not. The probability of a resume received being from a female is independent from other resumes. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

22% of all resumes received by a corporation for a management position are from females.

This means that p = 0.22

18 resumes will be received tomorrow.

This means that n = 18

What is the probability that exactly 1 resume will be from females?

This is P(X = 1).

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 1) = C_{18,1}.(0.22)^{1}.(0.78)^{17} = 0.0580

5.80% probability that exactly 1 resume will be from females.

3 0
4 years ago
2)
AlexFokin [52]

Answer: she has spent $60 dollars and she has 180 more to go

Step-by-step explanation:

7 0
4 years ago
Read 2 more answers
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