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nydimaria [60]
3 years ago
5

How to do this cause I am confused

Mathematics
1 answer:
viva [34]3 years ago
3 0
The answer is:  " 268.666 in² " .
______________________________________________________

Explanation:
_____________________________________________________
Formula for area of circle (shape of pizza):
______________________________________________________

A = \pi * r²  ;

in which:  "A = area of the pizza (area of a circle)" ; for which we are to solve.

                "\pi" = 3.14 (approximation we shall use) ; 

                r = radius = "d/2" ; d = diameter = 18.5 in (given) ; 

                r = d/2 = (18.5 in. / 2) = 9.25 in.
_______________________________________________
Plug our known values into the formula to solve for "A" (area):

A = \pi * r² ;

   = (3.14) * (9.25 in)² ;

   = (3.14) * (9.25)² * (in²) ;

   = (3.14) * (85.5625) * (in²) ;

   =  268.66625 in² ;
_________________________________________
Round to:  " 268.666 in² " .
_________________________________________
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The angle of elevation of the top of a tower from two points 121 m and 144 m away from the foot of the tower on th same side are
Dennis_Churaev [7]

Answer:

132 m

Step-by-step explanation:

Refer to attachment for figure.

In smaller triangle with angle theta , we have ,

⇒ tanθ = p/b

⇒ tanθ = h/121m

⇒ tanθ = h/121 m

<u>In</u><u> </u><u>triangle</u><u> </u><u>with</u><u> </u><u>angle </u><u>9</u><u>0</u><u>-</u><u>∅</u>

⇒ tan(90-θ) = p/b

⇒ cot θ = h/144 m

Multiplying these two ,

=> tanθ . cotθ = h/121 m × h/144m

=> 1 = h²/ (121 m × 144m )

=> h² = 121m × 144m

=> h= √ ( 121m × 144m)

=> h = 11m × 12m

=> h = 132 m

6 0
3 years ago
Let event Aequalssubject is telling the truth and event Bequalspolygraph test indicates that the subject is lying. Use your own
pochemuha

Answer:

C is the right answer

Step-by-step explanation:

In this case we have the events

<em>A: The subject is telling the truth. </em>

<em>B: The the polygraph indicates that the subject is lying </em>

Recall that P(B|A) is defined as the probability that the event B occurs given that the event has already occurred, and is equals to P(B∩A)/P(A).

So, with the events we have defined, <em>P(B|A) indicates the probability that the polygraph indicates lying given that the subject is actually telling the truth. </em>

The most suitable answer is thus, C

3 0
3 years ago
Which is an
Andreyy89
(Answer 2,770) (estimation: 3,000)
5 0
2 years ago
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stealth61 [152]
A right angle is 90 degrees so 90 plus 20 would equal 110
Answer: 110 degrees
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2 years ago
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The question is a little confusing, but I think the answer goes like this:
135 = admission + 5x, and if she bought 10 tickets:
135 = admission + 50, so admission must have cost her $85
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6 0
3 years ago
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