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SashulF [63]
3 years ago
11

How many like terms are in the expression?

Mathematics
2 answers:
grigory [225]3 years ago
7 0
The correct answer would be 3
artcher [175]3 years ago
6 0
‘Like terms’ means things with the same letters.

Your question is: 14x - 14y + 7 - x + z + 2x

As 14x, -x and 2x all have the same letter; they are like terms.

The answer would be 3, as there are only 3 like terms in your question.

I hope this made sense, if you need any more help or need me to explain further just ask! :)
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Six different​ second-year medical students at Bellevue Hospital measured the blood pressure of the same person. The systolic re
mixer [17]

Answer: range= 26, variance= 80 and standard deviation= 8.94

Step-by-step explanation:

Range = highest - lowest

Range = 146 - 120

Range= 26

Let m be mean

M=mean=sum/n

Mean=(120+134+146+127+138+133) / 6

M=798/6

M=133

The standard deviation sample formula:

S.D = sqrt( Summation of |x-m|^2 / n-1)

Let start finding:

|x-m|^2

For 1st: |120-133|^2=169

For 2nd: |134-133|^2=1

For 3rd: |146-133|^2=169

For 4th: |127-133|^2=36

For 5th: |138-133|^2=25

For 6th: |133-133|^2=0

Summation of |x-m|^2 = 400

The standard deviation formula is :

S.D = sqrt( Summation of |x-m|^2 / n-1)

S.D= sqrt(400 / 5)

S.D=sqrt(80)

S.D= 8.94

Variance = (Summation of |x-m|^2 / n-1)

Variance= 400/5

Variance= 80

3 0
3 years ago
Read 2 more answers
What is the domain of the function shown in the graph below?
tigry1 [53]

Answer:

All except one interval [-2,8]

Step-by-step explanation:

Notice that the function, wich an hyperbola, has a vertical asymptote in both -2 and 8 and there is nothing between this two values.

So we will exclude what's between them out of the domain.

6 0
3 years ago
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A national appliance store chain is reviewing the
7nadin3 [17]

Answer:

d

Step-by-step explanation:

8 0
2 years ago
Please help me !!!!!!!
-BARSIC- [3]

Answer:

Should be D.

I don't know why it won't let me respond with under 20 characters.

4 0
3 years ago
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A circle has an area of 2511 square centimeters. What is the length of its<br> radius?
romanna [79]

Answer:

r=28.27 cm aprox

Step-by-step explanation:

Well you know that the area of a circle is A= \pir^{2} so

2511=\pir^{2} so

r^{2}=2511/\pi

r=28.27 cm aprox

8 0
3 years ago
Read 2 more answers
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