Simplify 3a + 2b - 8a + b

Answers

Answer 1
Answer:

To simplify this expression, we must combine like terms. This means that we have to add or subtract the coefficients of the same variables, meaning we can only add variable a's together and variable b's together, they must stay separate.

3a + 2b - 8a + b

The first thing that we should do is to rearrange this expression so that the terms with the same variables are next to one another.

3a - 8a + 2b + b

Next, we can combine these terms by adding/subtracting their coefficients.

-5a + 3b

We can also write this as:

3b - 5a

Therefore, your answer is 3b - 5a.

Hope this helps!

Answer 2
Answer:

To simplify 3a + 2b - 8a + b, we need to combine like terms. Like terms are terms that share common variables. In this expression, the two variables are terms with a and terms with b. The terms that have a are 3a and -8a. The terms that have b are 2b and b. Now we can separate them and simplify.

(3a - 8a) + (2b + b)

-5a + 3b


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How to find the length of a cylinder when u have volume and circumference

Answers

circumfernce=2pir
Vcylinder=lpir^2

so what you do is take circumference adnd solvefor r, then input that for r in Volume and solve for legnth

C=2pir
C/(2pi)=r
input
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multiply both sides by (4pi)/(c^2) to clear fractio
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legnth=(4pi tmes volume)/(circumference^2)

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- Sometimes
- Never
- Always

Answers

Answer:

never

Step-by-step explanation:

Equilateral triangle all sides are equal. Isosceles triangle only 2 sides are equal.

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Answers

Answer: A,C,D

Step-by-step explanation:

Answer:

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Step-by-step explanation:

The time, in seconds, it takes for one complete swing of a pendulum is represented by the equation below, where is the length of the pendulum in meters, and is the acceleration due to gravity (9.81 m/s2).What is the approximate length of the pendulum if it takes the pendulum 2.9 seconds to complete one full swing? (Use = 3.14)

Answers

Answer:

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Step-by-step explanation:

Answer the question.

Answers

alright so
5^4m = 5^12
cancel the bases
4m=12
divide by 4
m=3