Which statement is true about the value of (5−n)(5n)?

Question

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.

Answer 1

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

Answer 2

ty so much

Answer 3

You are welcome.

Answer 4

efwefewf

Answer 5

so what’s the answer this is the question ..