Answer:
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I need help with example 4 plz
1 answer:
Answer:
a)
b)
Step-by-step explanation:
Recall the forms of vertical and horizontal lines
Horizontal lines come in the form of , so the slope of the equation is zero. The value of b will be the y-value of the point that you're given.
This means that the equation for a would be y=1
Vertical lines come in the form of . For this line, the value of a would be equivalent to the x-value of the given point. Therefore, b. would be
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Answer:
see explanation
Step-by-step explanation:
Using the ratio equality for circles
=
(a)
Note the angle at the centre of the shaded arc is 360° - 90° = 270°, thus
=
=
( cross- multiply )
3C = 180 ( divide both sides by 3 )
C = 60 mm
(b)
Note the angle at the centre of the shaded arc is 360° - 135° = 225°, thus
=
( cross- multiply )
225C = 1188 ( divide both sides by 225 )
C = 5.28 cm