Answer:
63
Step-by-step explanation:
35% are of seventh grade.
total students = 180
.: 35% of 180. = 35/100 × 180 = 35 × 18 /10
= 630/10
=63
.: The number of seventh graders are 63.
Step-by-step explanation:
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From the given information, we get the value of ABC = 120°.
<h3>How to estimate the value of ABC?</h3>
Given: In the figure, O exists the center of the circle and OABC exists as a parallelogram.
Now, the radius of the circle exists
OA = OB = OC
Opposite sides of a parallelogram are equal
AB = OC and OA = BC
In ∆OAB,
OA = OB = AB and,
In ∆OCB,
OC = OB = BC
Therefore, ∆OAB and ∆OCB exist in equilateral triangles.
All angles of an equilateral triangle are equivalent to 60°.
Hence, ∠ABC = ∠OBA + ∠OBC
∠ABC = 60° + 60°
∠ABC = 120°
Therefore, the value of ∠ABC = 120°.
To learn more about parallelogram refer to:
brainly.com/question/24291122
#SPJ9
The y intercept and -4 and going down 2 and 1 right u til you reach the end of the graph