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4 years ago

Solve and show work 7^(4x-3)=22

1 answer:

4 0

$7^{4x-3}=22$
$\log_77^{4x-3}=\log_722$
$(4x-3)\log_77=\log_722$
$4x-3=\log_722$
$4x=3+\log_722$
$x=\dfrac{3+\log_722}4$

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What algebraic expression must be added to the sum of 3x2 +4x+8 and 2x2−6x+3 to give 9x2−2x−5 as the result?

Gnom [1K]

4x² - 16 is the algebraic expression that must be added to get the result as 9x²- 2x - 5.

Step-by-step explanation:

The question is asked for the algebraic expression must be added to the sum of 3x²+4x+8 and 2x2−6x+3 to give 9x²- 2x - 5 as the result.

Therefore,

The first step is to find of sum of 3x²+4x+8 and 2x²-6x+3.

To find the sum :

3x²+4x+8

2x²-6x+3

5x²-2x+11

The sum is 5x²-2x+11.

Now, the second step is to subtract 5x²-2x+11 from the result 9x²- 2x - 5.

9x²- 2x - 5

- (5x²-2x+11)

4x² -16

Thus, 4x²-16 is the algebraic expression that must be added with 5x²-2x+11 to get a result of 9x²- 2x - 5.

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3 years ago

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bazaltina [42]

Answer:

Step-by-step explanation:

2(2)+(3(3)+(4²))

4+(9+16)

4+25

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2 years ago

Mollie watches a film that lasts 130 min it begins at 6:15 pm. What time did it end?

Natalka [10]

Answer:

Starts at 6:15

Note: An hour is 60 minutes.

So an hour after 6:15 is 7:15 and an hour after that is 8:15. Now just add another 10 minutes and you get 8:25.

So the film ended at 8:25.

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chubhunter [2.5K]

Answer:

Factors of the constant term

Step-by-step explanation:

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4 years ago

Read 2 more answers