Given f(x) =2x^2 - 3x+ 7, find (2.5)

12

Step-by-step explanation:

f(2.5) = 2 x (2.5)^2 - 3 x 2.5 + 7

= 2 x 6.25 - 7.5 + 7

= 12.5 -7.5 + 7

= 5 + 7

= 12

Hope this helps!

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart