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Allushta [10]
3 years ago
15

Jenny says the two expressions 7a – 4 + 3a - 6 and 4a – 10 are equivalent? Is she correct?

Mathematics
1 answer:
dusya [7]3 years ago
5 0
Yes, substitute a=2.
14 - 4 + 6 - 6 = -2
8 - 10 = -2
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A student studying his classmates' cars' ages reports the 5-number summary as {1, 3, 4, 8, 20}. what is the iqr for his data?
timurjin [86]

IQR for the data {1, 3, 4, 8, 20} is 5.

Interquartile Range(IQR) for a data is defined as the difference between third quartile and first quartile.

denoted by  IQR=Q₃-Q₁              (Q₃ is third quartile and Q₁ is first quartile)

The five number summary of a data set is represented as

{minimum, first quartile , second quartile , third quartile , maximum}..…(1)

According to the question

{1, 3, 4, 8, 20}

On comparing it with equation   …(1)

minimum=1

Q₁ =3    , Q₂=4 , Q₃=8 , maximum =20

IQR=Q₃-Q₁

Substituting the values we get

IQR=8-3=5.

Therefore , Interquartile Range for the data {1, 3, 4, 8, 20} is 5.

Learn more about Inter Quartile Range here brainly.com/question/28037049

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1 year ago
Are the triangles below similar?
Alika [10]
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5 0
2 years ago
5. Solve the x-puzzle below: (two mystery numbers
salantis [7]
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4 0
3 years ago
Which set of angle measures can be used to form a triangle ? A : 40 , 60 , 85 ,, B : 45 , 60 , 60 , C : 30 , 60 , 90 , D : 45 ,
Rainbow [258]

Answer:

D)45,90 90 this is the answer

3 0
3 years ago
Read 2 more answers
What is the slope of the line through the point (-4,6) and (-3,-1)?
zimovet [89]

Answer:

B.) -7/1

Step-by-step explanation:

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m = -7/1

4 0
3 years ago
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