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25 Nov 2017, 12:11
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
95%
(hard)
Question Stats:
50% (02:31) correct
50%
(02:46)
wrong
based on 282
sessions
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Time
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Not Attempted Yet
Region Q, shown here, is defined by
\((x−6)^{2} +(y−4)^{2} \leq 100\),
\(y\geq{0}\), and \(x\geq{0}\).
What is the approximate area of Region Q in square units?
A. between 75 and 125
B. between 125 and 175
C. between 175 and 225
D. between 225 and 275
E. between 275 and 325
Attachment:
Capture.PNG [ 25.12 KiB | Viewed 12293 times ]
26 Nov 2017, 02:44
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Gnpth
Region Q, shown here, is defined by
\((x−6)^{2} +(y−4)^{2} \leq 100\),
\(y\geq{0}\), and \(x\geq{0}\).
What is the approximate area of Region Q in square units?
A.between 75 and 125
B.between 125 and 175
C.between 175 and 225
D.between 225 and 275
E.between 275 and 325
\((x−6)^{2} +(y−4)^{2} \leq 100\),
\(y\geq{0}\), and \(x\geq{0}\).
What is the approximate area of Region Q in square units?
A.between 75 and 125
B.between 125 and 175
C.between 175 and 225
D.between 225 and 275
E.between 275 and 325
Attachment:
The attachment Capture.PNG is no longer available
Look at the attached figure..
Ans C
Join the parallel lines as shown..
Attachments
IMG_20171126_151118.jpg [ 1.48 MiB | Viewed 12063 times ]
26 Nov 2017, 04:01
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Gnpth
Region Q, shown here, is defined by
\((x−6)^{2} +(y−4)^{2} \leq 100\),
\(y\geq{0}\), and \(x\geq{0}\).
What is the approximate area of Region Q in square units?
A.between 75 and 125
B.between 125 and 175
C.between 175 and 225
D.between 225 and 275
E.between 275 and 325
\((x−6)^{2} +(y−4)^{2} \leq 100\),
\(y\geq{0}\), and \(x\geq{0}\).
What is the approximate area of Region Q in square units?
A.between 75 and 125
B.between 125 and 175
C.between 175 and 225
D.between 225 and 275
E.between 275 and 325
Attachment:
The attachment Capture.PNG is no longer available
As we can see the point (6,4) is a centre of the circle. The dash line is a radius wchich is 10. Circle area =\(\pi * r^2\) \(= 100 *\pi\) = 300
The shaded region is around \(\frac{2}{3}\) of the circle area => \(\frac{2}{3} * 300 = 200\)
Hence, the answer is C
Attachments
circle1.jpg [ 20.07 KiB | Viewed 11816 times ]
