2(n+3)= 4
n= -1
-1+3=2 then 2x2=4. Sum is an answer to an addition problem so a number and 3 times 2 = 4. Hope this helps and have a great day!
Subsitute -4y for x
-4y+6y=18
2y=18
divide both sides by 2
y=9
sub back
x=-4y
x=-4(9)
x=-36
(x,y)
(9,-36)
Answer:
Step-by-step explanation:
We have to find a cubic function of x whose zeros are at x = √7, x = -√7 and at x = -4.
Therefore, the factors of the function will be (x - √7), (x + √7), and (x + 4)
Hence, the equation will be y = (x - √7) (x + √7) (x + 4)
⇒ 
⇒
(Answer)
Are we assuming there are the same number of students total in both classes for both semesters
1st semester 2 art: 7 gym
2nd semester 5 art: 4 gym so 75 =5/9 75/5=15 for every 1 in the ratio is is = 15 students so 1st semester 30 art 105 gym 2nd semester 75 art 60 gym both have 135 total in both classes both semesters hope i helped -J