Given that △ABC ≅ △DEF , m∠E=3y+20, m∠B= 10 +5y, and m∠A=5y , answer the following:
1 answer:
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Answer: Endpoint = (-4,6)
Step-by-step explanation:
To find any endpoint use the formula
multiply each by 2 to simplify
take the equations and simplify
6+ = 2 -2+
= 4 =
-6 -6 +2 +2
= -4
= 6
To check use the Midpoint formula
Answer:
2 -
Step-by-step explanation:
Using the addition formula for tangent
tan(A - B) = and the exact values
tan45° = 1 , tan60° = , then
tan15° = tan(60 - 45)°
tan(60 - 45)°
=
=
Rationalise the denominator by multiplying numerator/ denominator by the conjugate of the denominator.
The conjugate of 1 + is 1 -
= ← expand numerator/denominator using FOIL
=
=
= +
= 2 -