Hey guys! a friend and I are confused and could really use the help. could you explain why? thanks!
2 answers:
Answers:
- substitution
- definition of perpendicular
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Explanation:
The first dropdown box is "substitution" because we are replacing, aka substituting, the with
. This replacement is valid because we are given that
. They are congruent angles.
The second dropdown box is "definition of perpendicular". If we have a 90 degree angle like this, then the two lines are considered perpendicular simply by definition.
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Given:
s is inversely proportional to t.
When s = 0.5, t = 7.
To find:
The value of s when t=0.8.
Solution:
s is inversely proportional to t.
...(i)
Where, k is the constant of proportionality.
Putting s=0.5 and t=7, we get
Putting k=3.5 in (i), we get
This is the equation of proportionality.
Putting t=0.8, we get
Therefore, the value of s is 4.375 when t=0.8.