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zzz [600]
3 years ago
15

I need Helppppp!!!! Will give brainiest!!!!

Mathematics
1 answer:
Strike441 [17]3 years ago
6 0

This is too hard!!

Bye!!!

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A dolphin is 1,000 feet below the sea level, it begins ascending at the rate of 20 feet per second. Assume the dolphins continue
Darya [45]
Starts at 1,000feet
Each second is getting 20 feet closer to the surface since is ascending ( going higher)

1,000/20= 100/2=50 second it takes to reach the surface
7 0
3 years ago
Pls help in this aaaaaa
ivanzaharov [21]
The question is incorrect. X is not defined UNLESS the hexagon is a regular hexagon, which means that all sides are equal (given) AND all angles are equal (not given).

Error in question aside, and  ASSUMING the hexagon is regular, you can apply the principle that
1. the sum of exterior angles of ANY polygon is 360.
2. the sum of exterior angles and interior angles at EACH vertex is 180.
3. Multiply sum from (2) above by the number of vertices and subtract 360 gives the sum of the interior angles.
4. IF the polygon is regular (all angles equal), then each interior angle equals the result from (3) divided by n, the number of vertices.

Example for a regular heptagon (7 sides, 7 verfices).
1. Sum of exterior angles = 360
2. sum of interior and exterior angles at EACH vertex=180
3. multiply 180 by 7, subtract 360
180*7-360=900
4. since heptagon is regular, each interior angle equals 900/7=128.57 deg.


8 0
3 years ago
4x^2 -18x^2=0<br><br> HELP PLEASE My teacher doesn’t explain it well
tigry1 [53]

Answer:

x=0

Step-by-step explanation:

4x²-18x²=0 (combine like terms)

-14x²=0

x²/-14=0/-14

√x²=√0

x=0

8 0
3 years ago
The resting heart rate of an adult is usually about 60 beats per minute. Use your completed table to find approximately how many
Fofino [41]

if 60 beats = 1 minute, and a minute is 60 seconds then 1,000,000 beats has to be divided by 60 = 16667 rounded to the nearest hundred thousand and divide that by 1440 (How many seconds in a day) = 11.574 days.


That equates to 11days, 13hours, 46 min, and 40 sec

4 0
3 years ago
Which number is greater: 87 or 13.688? How do you know?
lisabon 2012 [21]
87 because 13.688 is way less than 87
4 0
3 years ago
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