Answer:
- 1.25 hours or 1 hour and 15 minutes
Step-by-step explanation:
<em>Question</em>
- <em>Lisa lit a candle with a height of 8 inches. When lit, this candle loses 10% of its original height every hour. </em>
- <em>Please complete the following sentence by writing the number in the blank.
Until the candle has been burning for at least _______ hours, the height of Jennifer's candle will be more than 7 inches.</em>
<u>Candle looses 10% of 8 inches, it equals:</u>
- 8*0.1 = 0.8 inches an hour
<u>Let x be required time, then:</u>
- 8 - 0.8x > 7
- 0.8x < 8 - 7
- 0.8x < 1
- x < 1/0.8
- x < 1.25
- or 1 hour 15 minutes
<span>A. 54°; acute is the answer</span>
Set up the long division.
<span>92|76912</span>
Calculate 769 ÷ 92, which is 8 with a remainder of 33.
<span>8<span>92|76912</span><span>736</span><span>33</span></span>
3 Bring down 1, so that 331 is large enough to be divided by 92.
<span>8<span>92|76912</span><span>736</span><span>331</span></span>
4 Calculate 331 ÷ 92, which is 3 with a remainder of 55.
<span><span>83</span><span>92|76912</span><span>736</span><span>331</span><span>276</span><span>55</span></span>
5 Bring down 2, so that 552 is large enough to be divided by 92.
<span><span>83</span><span>92|76912</span><span>736</span><span>331</span><span>276</span><span>552</span></span>
6 Calculate 552 ÷ 92, which is 6.
<span><span>836</span><span>92|76912</span><span>736</span><span>331</span><span>276</span><span>552</span><span>552</span></span>
7 Therefore, 76912 ÷ 92 = 836.
<span><span>836<span>836</span></span><span>
</span></span>
Answer:
5400
Step-by-step explanation:
Answer: C. 3x^2 + 7x - 6
Step-by-step explanation:
3x^2 + 9x -2x -6
3x^2 + 7 - 6
Hope you got it.
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