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Natasha2012 [34]
3 years ago
12

Please help what 100p

Mathematics
1 answer:
kondaur [170]3 years ago
7 0
The correct answer is:  [C]:  " 1/4 " .
______________________________________________________
Explanation:
______________________________________________________

(-3/8) + (5/8) = (-3 + 5) / 8 = 2/8 ; 

→ 2/8 = (2÷2) / (8÷2) = 1/4 ;  → which is:  Answer choice:  [C]:  " 1/4" .
_______________________________________________________
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Which is greater,,, 3/6 or 2/5
Karolina [17]
3/6 is the answer

3/6is 0.50 and 2/5 is 0.40

Just divide them
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3 years ago
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In a room shaped like an ellipse, something whispered at 1 focus can be clearly heard at the other focus. The U.S. Capitol Natio
DanielleElmas [232]

Answer:

The listener is approximately 71.414 feet far from the whisperer.

Step-by-step explanation:

We must remember that two fundamental variables for every ellipse are the major semiaxis (a) and the minor semiaxis (b). The major semiaxis equals a half of the length of the whispering gallery, whereas the minor semiaxis equals a half of the width of the whispering gallery. These are:

a = 46\,ft and b = 29\,ft

The distance between both whisperers (d), measured in feet, is two times the distance between center and any of the foci (c), measured in feet, whose valued is obtained by using this Pythagorean identity:

d = 2\cdot c

c = \sqrt{a^{2}-b^{2}}

If a = 46\,ft and b = 29\,ft, then:

c = \sqrt{(46\,ft)^{2}-(29\,ft)^{2}}

c \approx 35.707\,ft

d = 2\cdot (35.707\,ft)

d = 71.414\,ft

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3 0
3 years ago
Round off 80.6 to the nearest whole number
enot [183]
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4 years ago
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erik [133]
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HOPE THIS HELPS! ^_^
4 0
3 years ago
Read 2 more answers
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