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Komok [63]
2 years ago
9

When a moving object collides with an object that isn’t moving, what happens to the kinetic energy of each object?

Mathematics
1 answer:
djyliett [7]2 years ago
6 0
The kinetic energy transfers from the moving ball to the non-moving ball.
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Shanna attends school for 1 week longer than 3/4 of the year. How many weeks in a year does Shanna attend school?
lorasvet [3.4K]

Answer:

48 weeks

Step-by-step explanation:

Theres 4 weeks in a month and times that by 12 and you get your answer, Hope this helps !

6 0
3 years ago
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Find the greatest rational number r such that the ratios 8/15 ÷r and 18/35 ÷r are whole numbers.
Akimi4 [234]

Answer:

  2/105

Step-by-step explanation:

"r" is the greatest common divisor (GCD) of the two fractions. It can be found using Euclid's algorithm in the usual way.

  (8/15) - (18/35) = 56/105 - 54/105 = 2/105 . . . . . this is (8/15) mod (18/35)

We can see that the next step, division of 54/105 by 2/105, will produce a remainder of 0, so the GCD is 2/105.

The greatest rational number r is 2/105.

_____

<em>Check</em>

The ratios are (8/15)/(2/105) = 28; (18/35)/(2/105) = 27. These whole numbers are relatively prime, so there is no larger r than the one we found.

5 0
3 years ago
What is n+ 7over10=-1over10
Karo-lina-s [1.5K]

Answer:

- 4/5

Step-by-step explanation:

Step 1:

n + 7/10 = - 1/10

Step 2:

n = - 1/10 - 7/10

Answer:

n = - 4/5

Hope This Helps :)

8 0
3 years ago
The game of American roulette involves spinning a wheel with 38 slots: 18 red, 18 black, and 2 green. A ball is spun onto the wh
solong [7]

Answer:

a)- \frac{1}{19}

b) SD(x) =  0.9986

Step-by-step explanation:

Given data:

Number of slots 38

slots for red ball 18

slots for black = 18

slots for green 2

outcomes       Red      Black or Green

Profit                  1                 -1

P(X)                   18/38       20/38

Expected value of wining,  

E(x) = 1. \frac{18}{38} + (-1) \frac{20}{38} = - \frac{2}{38} = - \frac{1}{19}

B) Standard deviation of winning SD(x)

SD(x) = \sqrt{(1- (-\frac{1}{19})^2 .\frac{18}{38} + (1- (-\frac{1}{19})^2 .\frac{20}{38}}

SD(x) = \sqrt{\frac{360}{361}

SD(x) =  0.9986

3 0
3 years ago
-x - y when x = -12 and y =2
kap26 [50]

Answer:

10

Step-by-step explanation:

Negative times a negative is a positive.

so 12-2=10

5 0
3 years ago
Read 2 more answers
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