1) Given
2) Definition of supplementary
3) Substitution
4) Exterior sides in opposite rays.
Answer:
192
Step-by-step explanation:
-3(-4(2) - 7(8))
= -3(-8 - 56)
= -3(-64)
= 192
*Negative x negative = positive
Step-by-step explanation:
a) 8x + 5x = 13x
b) 9f + 10f - 12f = 7f
hope it helps...
Answer:
3/10
Step-by-step explanation:
There are 10 students
5 of them voted either Los Angeles or New York
That means ignore (screw) the other 5 people
If 2/10 students chose Los Angeles,
that is 2/5 because the others didn't choose those cities that are part of the equation (nobody asked about the other people)
So if 5 people chose two groups of cities, and two people chose one city, that meant 3 chose the other
3/10 (remember its out of all of them) Students Voted for New York
Hope this helps :)
-jp524
Answer:
x=5, -1
Step-by-step explanation:
set the equation equal to 0: 2x^2-8x-10=0
divide both sides by 2 to get x^2-4x-5=0
next factor your new equation to get (x+1)(x-5)
set those equal to zero
now you have x+1=0 and x-5=0
finally, solve for x by subtracting 1 and adding 5
now you have your answer x= 5 and -1
