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Diano4ka-milaya [45]
3 years ago
13

Please help!! I do not understand this!

Mathematics
1 answer:
jarptica [38.1K]3 years ago
8 0

Answer: C

<u>Step-by-step explanation:</u>

Replace x with -\frac{2}{3} and solve.

f(x) = 3x² - 6x - 1

f(-\frac{2}{3}) = 3(-\frac{2}{3})² - 6(-\frac{2}{3}) - 1

    = 3(\frac{4}{9}) + 4 - 1

    = \frac{4}{3} + 3

    = \frac{4}{3} + \frac{9}{3}

    = \frac{13}{3}

     

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What is the length of BC?​
ELEN [110]

Answer:

24

Step-by-step explanation:

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7 0
2 years ago
Find the value of x.
hichkok12 [17]
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8 0
2 years ago
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D

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6 0
3 years ago
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fgiga [73]

Answer:

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4 years ago
Decreasing 3/4 times a number by 18 is equal to<br> increasing 1/5 times the number by 5.
Naya [18.7K]

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460/11, rounded to 41.8

Step-by-step explanation:

Let's say that our number is x. The first part states that we decrease 3/4 of a number by 18. Therefore, we find (3/4) of x and subtract that by 18, or (3/4)x-18. That is then equal to increasing (1/5) of x by 5, or (1/5)x+5. Our equation is then (3/4)x-18=(1/5)x + 5.

Adding 18 to both sides, we get (3/4)x = (1/5)x + 23.

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Feel free to ask further questions

6 0
3 years ago
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