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GuDViN [60]
4 years ago
7

Simplify the expression below 3x² - 5x² + 4x²​

Mathematics
1 answer:
jenyasd209 [6]4 years ago
5 0

Combine Like Terms;

= 3x^2 + -5x^2 + 4x^2

= (3x^2 + -5x^2 + 4x^2)

= 2x^2

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Which scale of measurement is being used if assigning numbers based on different professional affiliation (e.g., counselors, soc
hammer [34]

Answer: The answer is Nominal scale

Step-by-step explanation:

  • <em>Scale of Measurement</em> refer to ways in which variables/numbers/information are categorized

  • <em>Nominal Scale</em> is a measurement scale, in which numbers serve as “tags”, to identify or classify an object. it is usually use for non-quantitative variables. Some examples of variables that use nominal scales are language spoken, sex, the football club you support, profession etc

8 0
4 years ago
The average height of middle school students at Seton Grove School is found to be 5.25 feet. Which sample makes this generalizat
Ede4ka [16]

Answer:

every other student who enters the school

Step-by-step explanation:

It is given that the middle school students have an average height of 5.25 feet. The students belongs to Seton Grove School.

It means that every student who comes to this school or enters the school has a height that is around 5 feet or more.

Thus we can say that every other student who enters the school has a average height of 5.25 feet.

This sample makes the generalization about the heights of the school students valid.

6 0
3 years ago
Kindly answer this one. Thank you.​
steposvetlana [31]

Answer:

See below.

Step-by-step explanation:

I'm assuming these questions are about the Midline Theorem (segment AL joins the midpoints of the non-parallel sides.

♦  The midline's length is the average of the lengths of the top and bottom parallel sides.

AL=\frac{OR+CE}{2}

Use this equation and substitute values given in each problem, then solve for the missing information.

1. AL = x, CE = 9, OR = 5

x=\frac{9+5}{2}=7

2. AL = <em>m</em> - 4, CE = 15, OR = 17

m-4=\frac{15+17}{2}=16\\\\m-4=16\\\\\\m=20\\\\AL=20-4=16

3. OR = y + 5, AL = 15, CE = 18

15=\frac{(y+5)+18}{2}\\\\15=\frac{y+23}{2}\\\\30=y+23\\\\7=y\\\\OR = 7+5=12

4 0
3 years ago
Which expression represents the phrase 5 less than a number
Murrr4er [49]

Answer:

n-5

Step-by-step explanation:

Let

n ------> a number

we know that

The algebraic expression that represent the phrase"5 less than a number" is equal to subtract 5 from the number or a number minus 5

so

n-5

4 0
3 years ago
Helppppppppplppppppp
irinina [24]

Answer:

number 1 is 2 number 2 is 15 number 4 is 30

Step-by-step explanation:

6 0
3 years ago
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