Its a 90 degree right angle because of how two of the segments in the triangle are shaped like a perfect letter L
Answer:4
Step-by-step explanation:

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Answer:
See below.
Step-by-step explanation:
(a)
To multiply two polynomials, multiply every term of the first polynomial by every term of the second polynomial. Then combine like terms.




(b)
No. Since the binomials are different, the product of two different binomials and the same trinomial will give different results.
Answer:
The value of the equation for x is
or 559.5.
Step-by-step explanation:
Consider the provided equation.

We need to solve the equation for x.
Use the distributive property: 


Add the like terms.

Isolate the variable as shown:




Hence, the value of the equation for x is
or 559.5.