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Step2247 [10]
3 years ago
15

I don’t understand this

Mathematics
2 answers:
PIT_PIT [208]3 years ago
5 0

Answer:

24.5

Step-by-step explanation:

7²/x²-2

7²/2²-2

49/4-2

49/2

24.5

fomenos3 years ago
3 0
Replace x with 3 in the equation to get:
7^2/ 3^2 -2

7^2 changes to 49 and 3^2 changes to 9:
49/9-2

Simplify 9-2 to 7:
49/7

Divide 49 by 7:
7










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What is the area, in square feet, of the trapezoid below?
PtichkaEL [24]

Answer:  " 94. 6  ft² ".
_____________________

<u>Step-by-step explanation</u>:

The formula for the area of a trapezoid:
______________________
A = (1/2) * (b1 + b2) * (perpendicular height, "h" ) ;

      in which:
______________________
 "A = area (in units of ft²) "

 "b1 = length of (base one) = 7.7 ft (from diagram) ;  

 "b2 = length of (base two—the other base) = 14.3 ft. ;
 "h = height (perpendicular) = 8.6 ft.
_______________________

To solve for the Area, "A" ; we plug in the known values:
_______________________
A = (1/2) * (b1 + b2) * (perpendicular height, "h" );

   =  (1/2) * (7.7 ft + 14.3 ft) * (8.6 ft) ;

  = (1/2) * (22 ft.) * (8.6 ft) ;

  = (11 ft.) * (8.6 ft.) ;

   = (11) * (8.6) * (ft.) * (ft.) ;

   = (11) * (8.6) * ft² ;

A  =   " 94. 6  ft² ".

_______________________
Hope this is helpful to you!
  Best wishes!
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8 0
3 years ago
Plz helps what is the value of 374 PLZ
aev [14]
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3 0
4 years ago
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Answer:

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8 0
3 years ago
Multiple choice... compound probability
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