1. prove the following:
if n2 is not divisible by 3, then n is not divisible by 3.
(a) what kind of proof will you use to show this fact (proof by contrapositive? proof by contradiction? direct proof? proof by cases? etc.)
(b) show the fact.
2. identify the problem in the following proof that if n2 is rational, then n is rational (note: that fact is not true. consider \sqrt{2} ).
suppose n2 is rational. then n2 = \frac{a^{2}}{b^{2}} , so n = \frac{a}{b} . thus n is rational.

you need to give us more information since we can't answer

$2416.6

step-by-step explanation:

per hour = $ 25

total work time = 35

commission = 15%

total she has to make = $ 4,500

let she sold x dollar products

so her commission will be 15 % of x

now

total = weekly basic pay + commission

4500= (25*35) + 15 % of x

4500=875 + * x

4500-875 =   * x

3625= * x

multiplying wwith 100 on both sides gives

36250 = 15 x

now

x =  

x= $2416.6

i have no idea just need points sorry

step-by-step explanation:

x = 2

step-by-step explanation:

if sr parallel to ba then the sides bc and ac are in proportion, that is

= ← substitute values

= ( cross- multiply )

27x = 6(4x + 1)

27x = 24x + 6 ( subtract 24x from both sides )

3x = 6 ( divide both sides by 3 )

x = 2