Answer: A. u = ⟨3, 4⟩ and v = ⟨4, –3⟩
Step-by-step explanation:
edge2020
80 students.
2 bus rentals - $960.
$10 per student for lunch.
so we do $960 / 80 = which is $12.
so each student pays $12 for a bus rental + $10 for lunch so all together for the whole field trip it's $22.
Let the middle child be x
youngest child = x - 1
Oldest child = x + 1
(x - 1)^2 = 8(x + 1) + 4
x^2 - 2x + 1 = 8x + 8 + 4
x^2 - 10x - 11 = 0
(x - 11) * (x + 1) = 0
X = - 1 makes no sense. How can a middle child be - 1 years old?
x = 11
The youngest child is 10
The middle child is 11
The oldest child is 12
Check
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10^2 = 100
(8*12) + 4
96 + 4 = 100 So the results have been checked.
