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Ivan
3 years ago
15

PLEASE HELP!!!‼️‼️‼️ I need help with question 14 a and b show your work please‼️

Mathematics
1 answer:
Anastaziya [24]3 years ago
6 0
A. The change after 1 hour is 2 inches because 6x10=60 (minutes) and you multiply 1/3 by 6/1 and get 6/3 or 2 inches.

b. The change after 2.25 hours is 4 1/2 inches because 2x2=4 and .25 (1/4) of an hour is 15 minutes so take 1/3 and multiply it by 1/2 (half of 10 is 5 and 10+5=15 min.) and you get 1/6 and then you add 1/3 and 1/6 together to get 1/2. So together it is 4 1/2 inches.
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3 years ago
Please help. Due tomorrow
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5 0
3 years ago
In the expansion of (ax+1)^7<br> the fifth term is 945x^3<br> Find the value of a.
Advocard [28]

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Step-by-step explanation:

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[1^7] + [7C1 * 1^6 *(ax)] + [7C2*1^5*(ax)^2]+[7C3*1^4*(ax)^3]

as you can see from this, the last bracket will produce our x^3 term

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Hope this helps, let me know if you have any questions :)

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