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harkovskaia [24]
3 years ago
9

Which of these is a solution to the equation 2(x – 5) = 9 – 3x + 6 + 8 + 3x + 7? A.x = 10

Mathematics
1 answer:
koban [17]3 years ago
4 0
First, multiply the 2 times (x-5) and you get 2x-10 on the left side.
Then on the right side, add up all the similar terms and you get 30 (the -3x and +3x cancel each other out.
2x-10=30
Then add 10 to both sides and you get 2x=40.
Then divide both sides by 2 and you get x=20.
Answer is B.
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Answer:

Domain → (-∞, ∞)

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Step-by-step explanation:

Domain of a function is defined by the x-values or input values of the graph.

Similarly, Range of the function is defined by the y-values or output values from the graph.

From the picture attached,

x - values for the line shown in the graph vary from negative infinity to positive infinity.

Therefore, Domain of the function will be → (-∞, ∞)

And for every x-value there is a y-value, so Range of the function will be same as domain (varying from negative infinity to positive infinity) → (-∞, ∞)

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Question 5<br> Find the sum of the following geometric series.<br> 8+1.6+0.32+0.064 + ...
boyakko [2]

good morning,

Answer:

10×(1-0.2ⁿ)

Step-by-step explanation:

1.6/8=0.2

0.32/1.6=0.2

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3 years ago
The expression 9n + 3 represents the perimeter (in meters) of the triangle. Write an expression in the simplest form that repres
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Answer:

4n+2

Step-by-step explanation:

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  3. add liketerms 5n+1=9n+3
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Sergeeva-Olga [200]

Answer:

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Step-by-step explanation:

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Read 2 more answers
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