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2 years ago

What is the difference between a proper and an improper subset?

Mathematics

2 answers:

lutik1710 [3]2 years ago

4 0

A proper subset describes the set in full. An improper subset strays from the original set.

Nutka1998 [239]2 years ago

3 0

An improper subset is a subset containing every element of the original set. A proper subset contains some but not all of the elements of the original set. For example, consider a set {1,2,3,4,5,6}. Then {1,2,4} and {1} are the proper subset while {1,2,3,4,5} is an improper subset.

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22 ft. 5 ft. 13 ft.\ i think you have to multiply im not sure

NemiM [27]

110 that's the answer I think

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2 years ago

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Find the 63rd term for the sequence, 8, 11, 14,...

Mariana [72]

Answer:

194

Step-by-step explanation:

t63 = t1 + (n - 1)(d)

= 8 + (63 - 1)(3)

= 8 + (62)(3)

= 8 + 186

= 194

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1 year ago

Find the slope of line with the given points (6, - 4)(1, 5)

ddd [48]

Answer:

-9/5 is the slope

Step-by-step explanation:

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2 years ago

In a lab experiment, a student is trying to apply the conservation of momentum. Two identical balls, each with a mass of 1.0 kg.

muminat

Answer:

Trial- 2 shows the conservation of momentum in a closed system.

Step-by-step explanation:

Given: Mass of balls are $m= 1.0\ kg$

Conservation of momentum in a closed system occurs when momentum before collision is equal to momentum after collision.

Let initial velocity of ball $A\ is\ u_1$
Initial velocity of ball $B\ is\ u_2$
Final velocity of ball $A\ is\ v_1$
Final velocity of ball $B\ is\ v_2$
Momentum before collision $= mu_1+mu_2$
Momentum after collision $=mv_1+mv_2$

Now, According to conservation of momentum.

Momentum before collision = Momentum after collision

$mu_1+mu_2=mv_1+mv_2$

We will plug each trial to this equation.

Trial 1

$mu_1+mu_2=mv_1+mv_2\\1.0(1)+1.0(-2)=1.0(-2)+1.0(-1)\\1-2=-2-1\\-1=-3$

Trial 2

$mu_1+mu_2=mv_1+mv_2\\1.0(.5)+1.0(-1.5)=1.0(-.5)+1.0(-\.5)\\.5-1.5=-.5-.5\\-1=-1$

Trial 3

$mu_1+mu_2=mv_1+mv_2\\1.0(2)+1.0(1)=1.0(1)+1.0(-2)\\2+1=1-2\\3=-1$

Trial 4

$mu_1+mu_2=mv_1+mv_2\\1.0(.5)+1.0(-1)=1.0(1.5)+1.0(-1.5)\\.5-1=1.5-1.5\\-.5=0$

We can see only Trial 2 satisfies the princple of conservation of momentum. That is momentum before collison should equal to momentum after collision.

5 0

2 years ago

Angles A and B are supplementary. Angle A has a measure of 80°. What is the measure of angle B? The measure of angle B is °.

Elena-2011 [213]

Answer: 100 degrees
Since it is supplementary, it equals 180 degrees. If you take 180 and subtract 80 from it, you will get your answer

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2 years ago

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