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fenix001 [56]
3 years ago
7

Mathematics help please!! Multiple questions - any help is appreciated!!

Mathematics
1 answer:
Cloud [144]3 years ago
7 0
Https://us-static.z-dn.net/files/dfa/568f77bb33fc5a8f2808fc577636eb1a.jpeg

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Choose the correct simplification of the expression (2x − 6)(3x2 − 3x − 6).
seraphim [82]
If you would like to solve (2x - 6) * (3x^2 - 3x - 6), you can do this using the following steps:

(2x - 6) * (3x^2 - 3x - 6<span>) = 2x * 3x^2 - 2x * 3x - 2x * 6 - 6 * 3x^2 + 6 * 3x + 6 * 6 = 6x^3 - 6x^2 - 12x - 18x^2 + 18x + 36 = 6x^3 - 24x^2 + 6x + 36
</span>
The correct result would be <span>6x^3 - 24x^2 + 6x + 36.</span>
3 0
3 years ago
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I need help with 3b2-b b=5
salantis [7]

Answer:

f(x) = 3 {b}^{2}  - b \\ f(5) = 3 {(5)}^{2}  - 5 \\ f(5) = 3(25) - 5 \\ f(5) =7 5 - 5 \\  \boxed{f(5) = 70}

  • <u>f(5) = 70</u> is the right answer.
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3 years ago
Use the table to find the value of x. Then write a sentence to explain, in words, the meaning and the value of x. The fastest gr
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Can we see the table, I don't have much information without it.

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Corrie breathed 1 × 107 times in a year. She blinked 8 × 106 times that year. How many more times did Corrie breathe in a year t
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Answer:

Multiply 107 and 1 and then multiply 106 and 8 and then subtract them...

Step-by-step explanation:

I'm sorry if this doesn't help u but I'm doing homework too so I need to hurry up and finish it ._.

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3 years ago
What is the unit rate for $140 for 18ft squared
notsponge [240]
Well, if you divide 140 by 18 you get the unit rate/price. $7.78 is the rounded total!
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