Domain is another word for the x value. so, this question just asking us to solve for y when x = 7
first, substitute in x
y = 3(7) -4
and then solve for y
y = 21 - 4
y = 17
so, the range is 17 when the domain is 7
Number one is 13.2 now hold up while I do the rest
Answer:
R___S___T
RT=RS+ST
39 = (23 - 2x) + (9x - 5)
39 =7x + 18
7x = 39 - 18
7x = 26
x = 26/7
x= 3.7
RS= 23 - 2x = 23 - 2(3.7) = 23 - 7.4 = 15.6
If went ST = 9x -5 = 9(3.7)- 5 = 33.3 - 5 = 28.3
I hope I helped you^_^
Aight so first you need to isolate the y. Simply add 8 to both sides and now you have 1/4y = 33. Now divide both sides by 1/4 (which is the same by multiplying by 4) and you get 132
2(3r+7)−(2+r)
Use distributive property:
6r + 14 - 2 - r
Simplify by combining like terms:
5r +12
