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Llana [10]
3 years ago
9

1 + x = 7 − 2x solve the equation

Mathematics
1 answer:
ser-zykov [4K]3 years ago
7 0

Answer:

x = 2

Step-by-step explanation:

Given

1 + x = 7 - 2x ( add 2x to both sides )

1 + 3x = 7 ( subtract 1 from both sides )

3x = 6 ( divide both sides by 3 )

x = 2

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Do you agree with the researchers method of predicting the population? Why or why not?
Burka [1]

Yes, I agree with the researcher's method. All the values of a_{n} in the table correspond to the values of n by using their formula.

Step-by-step explanation:

Step 1:

If we substitute the values of n in the researcher's equation and we get the right values of a_{n}, we can agree with the researcher's method.

The researcher's formula is a_{n} = 1000(2)^{n-1}. Here a_{n} is the wombat population and n is the number of years.

Step 2:

When n = 1, a_{1} = 1000(2)^{1-1} =  1000(1) = 1,000,

when n = 2, a_{2} = 1000(2)^{2-1} = 1000(2) = 2,000,

when n = 3, a_{3} = 1000(2)^{3-1} = 1000(4) = 4,000,

when n = 4, a_{4} = 1000(2)^{4-1} = 1000(8) = 8,000,

when n = 5, a_{5} = 1000(2)^{5-1} = 1000(16) = 16,000.

As all the values correspond to the values on the table, I agree with the researcher's method.

6 0
3 years ago
The distance between the points (-3,-1) and (-4,0) is the square root of ___?
Galina-37 [17]
\bf \textit{distance between 2 points}\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%  (a,b)
&({{ -3}}\quad ,&{{ -1}})\quad 
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&({{ -4}}\quad ,&{{0}})
\end{array}\qquad 
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6 0
3 years ago
What is the domain of the given function?
Sholpan [36]
The domain is all ur x values...the range is all ur y (or f(x) values
so ur domain is : { -6,-1,0,3}....1st answer choice
8 0
2 years ago
Read 2 more answers
Is 1 ton bigger than 100 pounds??? I have NO time to like figure it out :(
ValentinkaMS [17]
One ton is bigger than 100 pounds.

1 ton is equal to 2000 pounds.
7 0
3 years ago
Pls help
NeTakaya

Answer:

1. 6

2. 24

3.   2/9 × 90 = 20 sixth grade students

4. 2/9 ×  27 = 6 sixth grade students

5. 2/9 + 27, 2/9 - 27, 2/9 / 27, 2/9 27

6.  189 students

7. B

8. Jada needs 10 cups of sparkling water if she uses 15 cups of apple juice.

9. Jada needs 9 cups of apple juice if she uses 6 cups of sparkling water.

10. D

11. D

12. C

Step-by-step explanation:

Hope this helps you

4 0
2 years ago
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