1. Determine whether the matrices are inverses.
2 answers:
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Answer:
Result after multiplication of polynomial is:
Degree of polynomial = 3
Step-by-step explanation:
The given polynomials are:
In order to multiply the given polynomials we have to work step by step. First of all the polynomials in the bracket will be multiplied and then their result will be multiplied with x.
So, multiplying the polynomials in round brackets first
Now multiplying with x
Degree of a polynomial is the highest exponent of variable in the polynomial.
In the acquired result, the highest exponent of x is 3 so the degree is 3.
Hence,
Result after multiplication of polynomial is:
Degree of polynomial = 3
Answer:
= 115°
Step-by-step explanation:
Intersecting chord theorem,
"When two chords intersect inside a circle, then the measure of each angle is one half the sum of the measures of the arcs intercepted by the angle and its vertical angle."
By this theorem.
=
---------(1)
= 40°
= 100° + 60° + 30°
= 190°
By substituting these values in the expression (1)
=
= 115°
Therefore, = 115°