Prove the inequality.
c+ 1/c ≥2 for c> 0

Step-by-step explanation:

Given c+1/c ≥ 2 for c> 0

Form a table for vales of c with corresponding values that are true to the equation

when c=1 the inequality will be

1+1/1 ≥ 2

2 ≥ 2 true

when c=2

2+1/2 ≥ 2

2.5 ≥ 2 true

when c=3

3+1/3 ≥ 2

3.33 ≥ 2

where c =-1

-1 + 1/-1 ≥ 2

-1 + -1 ≥ 2

-2 ≥ 2 false

where c=-2

-2 + 1/-2 ≥ 2

-2.5 ≥ 2false

Hence the inequality only holds for values of c>0

answer: asdfghjkl,mnbv

step-by-step explanation:

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!