Answer:
4ab² + 20b - 3a
Step-by-step explanation:
This question most likely asks us to simplify the expression, as factoring is not possible...
(ab² + 13b - 4a) + (3ab² + a + 7b),
ab² + 13b - 4a + 3ab² + a + 7b,
ab² + 3ab² + 13b + 7b - 4a + a,
Solution : 4ab² + 20b - 3a
Answer:
The answer is B
Step-by-step explanation:
Short Answer: n = 5
The chords bear the relationship of (in this case)
18*(n + 1) = 9 * (n +7) Remove the brackets
18n + 18 = 9n + 63 Subtract 9n from both sides.
18n - 9n + 18 = 63
9n + 18 = 63 Subtract 18 from both sides.
9n = 63 - 18
9n = 45 Divide by 9
n = 45/9
n = 5 <<<<<<<< Answer
The answer is 71.4 miles per hour
