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riadik2000 [5.3K]
3 years ago
5

I need to know the answer.

Mathematics
1 answer:
patriot [66]3 years ago
7 0
8a²b + 3ab² - 9a²b

-a²b + 3ab²

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Which of these people had balanced their checkbook correctly. Gary: the balance in his check register is $500 and the balance in
otez555 [7]

Gary should be the correct choice because when you balance their checkbook correctly you should have a balanced or equal amount in both your check register and your bank statement.

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What is 9 x 9 x 9 x 9 x 9 x 9 x 9 in exponential notation
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Step-by-step explanation:

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Which expression is equivalent to sec^2x − 1? a. cot2x b. tan2x c. csc2x d. cos2x
Nesterboy [21]
Sec^2 x - 1 = tan^2x

Proof:
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<span>1/cos^2x - sin^2x/cos^2x = 1
</span>Using common denominator:
(1-sin^2x)/cos^2x = 1
sin^2x + cos^2 x = 1
cos^2 x = 1 - sin^2x
Substituting : 
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</span>1 = 1
Left hand side = right hand side 
4 0
3 years ago
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Ali was asked to simplify the expression 3(x - 6) + (4x + 12) - 6x. His work is shown below.
liraira [26]

Answer:

Step 2 is wrong.

It should be 3x – <u>18</u> + 4x + 12 – 6x

Explanation:

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x – 6

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I have this too idk

Step-by-step explanation:

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