karly8108
30.08.2019 •
Mathematics
What is the quadratic sequence answer in 2, 11, 26, 47,74
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Ответ:
1) Verify if it is a 2 degree.
2) y=ax²+bx+c
Calulate a,b,c by Gauss's methode
a=3, b=0,c=-1
y=3x²-1
Ответ:
Angelo bought apples and bananas at the fruit stand.
He bought 20 pieces of fruit and spent $11.50.
Apples cost $0.50 and bananas cost $0.75 each.
A + B = 20
50A + 75B = 1150
50A + 50B = 1000
25B = 150
B = 6
A = 14
Angelo bought 14 apples and 6 bananas.