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GenaCL600 [577]
3 years ago
8

Lucia finds that (3x^2+3x+5)

Mathematics
2 answers:
wlad13 [49]3 years ago
7 0
The answer would be x=1
Aneli [31]3 years ago
5 0

Answer:

x=1

Step-by-step explanation:

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Which pair of angles must be supplementary?
Alenkasestr [34]
The answer is: <4 and <5

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What's the answer????
Svetllana [295]
I would try b the rise\run is 2\2 so give it a go
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3 years ago
A comet travels at an average speed of 273,000 km/h.
vaieri [72.5K]

Answer: 52,416,000 km

Step-by-step explanation:

If a comet travels 273,000 km/hr

1) Multiply 273,000 km by 24 hours to find how far the comet travels in one day

2) multiply the answer from 1 by 8 to determine how far it travels in 8 days

1) \frac{273,000 km}{hr}*\frac{24 hr}{1 day} = \frac{6,552,000km}{day} (hours cancel out)

2)\frac{6,552,000km}{day}*8 day= 52,416,000 km in 8 days

The comet approximately travelled 52,416,000km from when it began to travel to when it reached Earth. Hope this helped :)

5 0
3 years ago
Express the square root of -80 in its simplest terms.
spin [16.1K]

Answer:

C

Step-by-step explanation:

noting that \sqrt{-1} = i

Given

\sqrt{-80}

= \sqrt{16(-1)(5)}

= \sqrt{16} × \sqrt{-1} × \sqrt{5}

= 4i\sqrt{5} → C

4 0
3 years ago
A 7-meter by 7-meter square is reduced so that each side is half as long as the original.
Lina20 [59]

Answer:

Step-by-step explanation:

  1. 7m ÷ 2 = 3.5m
  2. Part A: New square is 3.5-meter by 3.5-meter
  3. The original square's perimeter is 7x4=28-meter.
  4. The new square's perimeter is 3.5x4=12-meter
  5. Part B: The ratio is 12:28 or 3:7
  6. The original square's area is 7²=49 meter²
  7. The new square's area is 3.5²=12.25 meter²
  8. Part C: The ratio is 49:12.25
3 0
3 years ago
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