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kati45 [8]
3 years ago
15

Expand and combine like terms. (3c^4-5c^6)^2

Mathematics
1 answer:
lora16 [44]3 years ago
4 0

Answer:

9c^{8} -30c^{10} + 25c^{12}

Step-by-step explanation:

We can use formula (a-b)² = a² -2ab + b².

In our example a = 3c^4 and b = 5c^6

(3c^{4} - 5c^{6})^{2} = [3c^{4} ]^{2} - 2*3c^{4} *5c^{6} + [5c^{6}]^{2}=\\=9c^{8} -30c^{10} + 25c^{12}

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Is rolling a 3 standard doe and then rolling a sum greater than 4 when counting the next roll an independent event?
zhannawk [14.2K]

Answer:

False

Step-by-step explanation:

In this question, you roll 3 from the standard die and then add it with the next roll to see if the sums are greater than 4.

From this explanation you can see that you use the result from your first roll for the second event, so we can conclude that the event is dependent.  

Imagine if we change the result of the first roll into 5, without adding the second roll we can know that the sum will be greater than 4. The first event result will influence the second event, so it is a dependent event.

5 0
3 years ago
Alan is on the swim team. Each week he swims a total of 6000 meters. How many kilometers does he swim each week
NARA [144]

Answer:

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Step-by-step explanation:

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3 0
2 years ago
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olga55 [171]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
Read 2 more answers
Please help on number 3 part 1 and part 2 pretty please thanks
Goryan [66]
For the first part you need to find 85% of 16,000. its 13,600. you get this by multiplying .85 by 16,000.

for part two, i don't know how to show the work, but 816 is 96% of 850.

sorry about that, but i hope it helps
7 0
3 years ago
6 boxes of 3-inch incense sticks for $22.75 is a better buy than 8 boxes for $30 and 10 boxes for $38.00
enot [183]

Answer:

Step-by-step explanation:

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30/8 boxes is $3.75 a box

38/10 boxes is $3.80 a box

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So no, the 6 boxes at $3.79 a box is not a better buy.

6 0
3 years ago
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