If you download Photomath on your phone it helps a lot!
Answer:
1 and a half miles
Step-by-step explanation:
1/2 hour = 3/4 miles
1 hour = 2(3/4) miles
Answer: I think it might be the third answer choice
Step-by-step explanation:
since it is going through the points of a parabola
The expression which can be used to determine the algebraic sum of the given polynomials as in the task content is; -11x² +4x +14.
<h3>Which expression can be used to find the sum of the given polynomials?</h3>
It follows from the task content that the polynomials whose sum are to be determined are; (9 - 3x2) + (-8x2 + 4x + 5).
Hence, the sum can be evaluated as follows;
= 9 - 3x² + -8x² + 4x + 5
= -11x² +4x +14.
Consequently, the required expression is; -11x² +4x +14.
Read more on sum of polynomials;
brainly.com/question/8067283
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