Asked by liliana
Which statement is true about the value of (5−n)(5n)?
a.For all n, the value of the expression is 0.
b.For n<0, the value of the expression is greater than 1.
c.For n<0, the value of the expression is less than 1.
d.For all n, the value of the expression is 1.
a.For all n, the value of the expression is 0.
b.For n<0, the value of the expression is greater than 1.
c.For n<0, the value of the expression is less than 1.
d.For all n, the value of the expression is 1.
Answers
Answered by
Damon
y = (5-n)(5n) = 25 n - 5 n^2
parabola crosses x (or n really) axis at n = 0 and 5 and heads down
so
vertex at n = 2.5
and y = 62.5 - 31.25 = 31.25
so parabola never gets higher than 31.25 at n = 2.5
left of n = 0, it is always negative so c is surely true
parabola crosses x (or n really) axis at n = 0 and 5 and heads down
so
vertex at n = 2.5
and y = 62.5 - 31.25 = 31.25
so parabola never gets higher than 31.25 at n = 2.5
left of n = 0, it is always negative so c is surely true
Answered by
liliana
ty so much
Answered by
Damon
You are welcome.
Answered by
efrewfr
efwefewf
Answered by
Paradise .
so what’s the answer this is the question ..
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