Answer:
Step-by-step explanation:
d = 2
arc length of semicircle = ½×circumference = ½×πd = π
perimeter of semicircle = π + d = π+2
This problem can solve by the rule of three.
330 miles-------------------------15 hours
x--------------------------------------44 hours
x=(330 miles * 44 hours) / 15 hours=968 miles.
answer: the migrating bird flies 968 miles in 44 hours.
For 2 figures to be similar, their corresponding sides must be proportional and their corresponding angles must be congruent.
While we see that the sides are all proportional, the corresponding angles are not congruent, therefore the correct option is the third option.
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
#SPJ1