Cuanto es la mitad de 2 mas 2
1 answer:
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Let C be the center of the circle. The measure of arc VSU is , so the measure of the minor arc VU is
. The central angle VCU also has measure
.
Triangle CUV is isosceles, so the angles CVU and CUV are congruent. The interior angles of any triangle are supplementary (they add to 180 degrees) so
UT is tangent to the circle, so CU is perpendicular to UT. Angles CUV and VUT are complementary, so
So finally,
degrees.
we know that
Using the original score as the basis
If Misha increased her test score from % to
%
then
the increase variation is equal to
%-
%=
%
to find the approximate percent increase of Misha's test score we apply a rule of three
if %--------------> represents
%
%----------------->x
%
therefore
the answer is
the approximate percent increase of Misha's test score is %