Answer:
a
Step-by-step explanation:
its right
Answer:
can you give a word problem and not just a picture
Step-by-step explanation:
Answer:
x⁴+3x³ -5x +1
Step-by-step explanation:
To multiply this we are going to <u>multiply each term of the binomial by each term of the polynomial.</u>

Now we are going to <u>combine like terms (this means we are going to sum up terms with the same exponent)</u>

Thus, the answer is x⁴+3x³ -5x +1
Answer:
Yes
Step-by-step explanation:
A right angle means that the lines will create an L or X or T when they intersect. This is exactly the definition of perpendicular, that the shapes will intersect and create at least one right angle.
Answer:
Step-by-step explanation:
7
21
+63 =91