Desire17
Desire17 Desire17
  • 22-09-2017
  • Mathematics
contestada

If ax-a>2a and x-1<-2

If axagt2a and x1lt2 class=

Respuesta :

apologiabiology
apologiabiology apologiabiology
  • 22-09-2017
ax-a>2
x-1<-1

ok, in the first one, we can undistribute the a

ax-a>2
a(x-1)>2
and we known that x-1<-1, so x-1 is negative
we can assign c for x-1 to do c<-1 then

a(c)>2
ac>2
so if c is negative, then therefor a must also be negve to produce greater than 2
hmm, we see 2 choices that work, B and D

hmm, if c=-1.5
then a has to be 0.75
that is a possible solution so therefor B is false


the answer is D
Answer Link

Otras preguntas

Robert says that the slope of a line passing through (1, 7) and (3, 9) is equal to the ratio 1-3/7-9 . Is this a correct method for calculating the slope? Expla
Two inflation rate indicators?
Carbohydrates stored in the liver are in the form of starch. True False
Helppppp, please!!!!​
Order the integers from least to greastest 5,-6,12,-1,-7,0,8
The difference of two numbers is 16, and their sum is 20. What are the two numbers?
With regard to fiduciary duties in mortgage lending, the borrower is the _____, and the broker is the _____.
Check out this app! It's millions of students helping each other get through their schoolwork. https://brainly.app.link/qpzV02MawO​
Two inflation rate indicators?
I WILL GIVE BRAINLIEST!!!!What is the ellipsis doing in this sentence?"I'm not sure . . ." I said. "Does that seem right to you?"Choose 1 answer:(Choice A)Ashow