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1 answer:
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Answer:
77. Proved
78. Proved
79. Proved.
80. Proved.
Step-by-step explanation:
77. Left hand side
=
=
=
{Since we know, }
=
= Right hand side (Proved)
78. Left hand side
=
=
{Since }
=
= Right hand side (Proved)
79. Left hand side
=
=
{Since }
=
= Right hand side
80. Left hand side
=
=
{Since }
=
=
= Right hand side. (Proved)
Total money * fraction = part
Answer:
C
Step-by-step explanation:
The equation of a line is given by
and
slope (m) is given by:
Where (x_1,y_1) are the first set of point in the line and (x_2,y_2) is the second set of point
<em>Let's take 2 points arbitrarily. (0,0) & (25,20)</em>
<em />
<em>Let's plug it and find the equation:</em>
<em></em>
<em>Now</em>
<em></em>
<em />
<em>C is the correct answer.</em>