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forsale [732]
3 years ago
9

In the equation 6x - 2 = -4x + 2, Spencer claims that the

Mathematics
1 answer:
Alinara [238K]3 years ago
8 0

Answer:

Spencer is correct

Step-by-step explanation:

Because adding 4x to each side will bring both numbers to a positive and that makes it easier to get the answer

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Find the sum of the first 9 terms of the following sequence. Round to the nearest
aivan3 [116]

Answer:

Your missing a number and your answer is 12

Step-by-step explanation:

4 0
3 years ago
Azul has 4 green picks and no orange picks. You add orange picks so that they are 2 orange picks for every 1 green pick. How man
Ad libitum [116K]

Ratio of orange:green = 2:1


If there are 4 green picks then there are 8 orange picks.


Total number of picks = 4 + 8 = 12


Answer: There are now 12 picks in total.

8 0
3 years ago
What is the difference between a subset and a proper subset?
muminat

Answer:

A subset is when all of the elements in the subset are in the actual set. A proper subset is a subset which the actual set has at least on more element than the proper subset.

Step-by-step explanation:

For example, Set A, {1,2,3} is a subset of B {1,2,3}. But Set C, {1,2} is a proper subset of B. Set {5,8} is a subset of {2,5,8}.

6 0
3 years ago
Pinky Bauer, Chief Financial Officer of Harrison Haulers, Inc., suspects irregularities in the payroll system. She knows that 2,
kherson [118]

Answer:

The correct option is (C) convenience sample.

Step-by-step explanation:

Convenience sampling is a kind of non-probability sampling, i.e. all items does not have an equivalent chance or probability of being selected. This type of sampling method does not comprises of random collection of items.

Convenience sampling is where we take in items which are easy to reach or collect.

For example, sampling the the students of your own class or collecting sample from your own neighborhood.

In this case the Chief Financial Officer of Harrison Haulers, Inc. asks her staff to inspect the last 200 vouchers of the 2500 payroll vouchers that have been issued since January 1, 2000.

She did so because her staff did not have that much time in hand and it is quite convenient to check the last 200 vouchers.

This is because it is quite easy to review the last 200 payroll vouchers since they would be the most recent ones and quite easily accessible.

So, the sampling method used by the Chief Financial Officer of Harrison Haulers, Inc. is Convenience sampling.

Thus, the correct option is (C).

5 0
3 years ago
Using Cramer’s Rule, what is the value of x in the system of linear equations below? x+3y=16 3x+y=8
alexdok [17]
Cramer's rule works as follows:
x+3y=16
3x+y=8
Then 
x=Dx/D
y=Dy/D
where Dx,Dy,D are 2x2 matrices formed from of coefficients and right hand side.
D=
1 3
3 1
=1-9=-8
Dx=matrix D with first column replaced by the vector [16,8]=
16,3
8 1
=16-24
=-8

Dy=matrix D with second column replaced by the vector [16,8]=
1 16
3 8
=8-48
=-40

Therefore
x=-8/-8=1
y=--40/-8=5

Check:
x+3y=1+3(5)=16
3x+y=3(1)+5=8   ok.
4 0
3 years ago
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