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Alekssandra [29.7K]
2 years ago
7

Pls answer this fast (30 points)Simplify the algebraic expression -2(x - 3) + 4(-2 x + 8)​

Mathematics
1 answer:
Anna11 [10]2 years ago
6 0

Answer:

-10x + 38.

Step-by-step explanation:

-2(x - 3) + 4(-2x + 8)​

= -2x + 6 - 8x + 32

= -10x + 38.

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A city has a population of 310,000 people. Suppose that each year the population grows by 9%. What will the population be after
Leno4ka [110]

Answer: 644,800

Step-by-step explanation:

This can also be solved using the terms of Arithmetic Progressions.

Let the 13 years be number of terms of the sequences (n)

Therefore ;

T₁₃              = a + ( n - 1 )d , where a = 310,000 and d = 9% of 310,000

9% of 310,000 = 9/100 x 310,000

                        = 27,900

so the common difference (d)

                     d = 27,900

Now substitute for the values  in the formula above and calculate

T₁₃              = 310,000 + ( 13 - 1 ) x 27,900

                  = 310,000 + 12 x 27,900

                  = 310,000 + 334,800

                  = 644,800.

The population after 13 years = 644,800.

 

3 0
2 years ago
Solve for x in the equation x^2-4x-9=29
Kipish [7]
X = 2 + √42,2- √42
decimal form: 8.480741, -4.480741
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3 years ago
What is the inverse of the function f(x) = 2x + 1?|
padilas [110]

Answer:

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Step-by-step explanation:

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\frac{y-1}{2} = x

Change y back into terms of x with x being the inverse h(x)

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6 0
3 years ago
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