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qaws [65]
3 years ago
7

List the laws of solid friction​

Mathematics
2 answers:
Artist 52 [7]3 years ago
7 0

Answer:

I WANT MY POINTS BACK

Step-by-step explanation:

FinnZ [79.3K]3 years ago
5 0
* The force of friction acts in opposite direction in which the surface is having tendency to move .
* the force of friction is equal to force applied to surfaces , so long as surface is at rest .
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In 6 years, John will be 3 times the age he was 2 years ago. What is his current age?
Vladimir79 [104]

Answer:

John is currently 6 years old.

Step-by-step explanation:

2 years ago: x years

Current time: x+2

In 6 years: x+8

EQUATION:

3(x)=x+8= 3x=x+8

(subract x from both sides)

2x=8

x=4

Therefore, John is 6 years old in current time

7 0
3 years ago
#2 only <br> And it's to confusing
ipn [44]
They are easy to compare if they all have the same common denominator, then you can easily order them by the magnitude of the numerators...

85/10, -67/10, -56/10, 82/10  so now they are easy to compare...so

-6.7, -28/5, 8.2, 17/2
5 0
3 years ago
You take a quiz with 6 multiple choice questions. After you studied your estimated that you would have about an 80 % chance of g
Arada [10]

Answer:

1.15%

Step-by-step explanation:

To get the probability of m  independent events you multiply the individual probability of each event. In this case we have m independent events, each one with the same probability, therefore:

p^{m}

0.8^{20} = 1.15\%

This is a particlar scenario of binomial distribution problem. So the binomial distribution questions are about the number of success of m independent events, where every individual event has the same p probability. In the question we have 20 events and each event has a probability of 80%. The binomial distribution formula is:

\binom{n}{k} * p^{k} * (1-p)^{n-k}

n is the number of events

k is the number of success

p is the probability of each individual event

\binom{n}{k} is the binomial coefficient

the binomial coefficient allows to find the subsets of k elements in a set of n elements.  In this case there is only one subset possible since the only way to get 20 of 20 correct questions is to getting right all questions (for getting 19 of 20 questions there are many ways, for example getting the first question wrong and all the other questions right, or getting second questions wrong and all the other questions right, etc).

\binom{n}{k} = \frac{n!}{k!(n-k)!}

therefore, for this questions we have:

\frac{20!}{20!(20-20)!} * 0.8^{20} * (1-0.8)^{0} = 1.15\%

4 0
3 years ago
35 points in 20 minutes or 49 points in 35 minutes? Find which is greater.
Vitek1552 [10]

Answer:

35 points in 20minutes is greater than 49 points in 35 minutes.

7 0
3 years ago
Read 2 more answers
A rectangular prism has a length of 3 feet, a height of 7 feet, and a width of 14 feet.
MA_775_DIABLO [31]

Answer:

294 cubic ft.

Step-by-step explanation:

All you do is just multiply the length, width, and height!

3 × 14 × 7 = 294

hopefully this helped :3

5 0
3 years ago
Read 2 more answers
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