Answer:
(1, -6)
Step-by-step explanation:
the layout of your question is kind of confusing, but i'm guessing this is the system of equations
x = -y - 5
-3x + 7y = -45
plug in x to the second equation
-3(-y - 5) + 7y = -45
distribute
3y + 15 + 7y = -45
combine like terms
10y = - 60
divide by 10
y = -6
plug y into first equation
x = -(-6) - 5
x = 6 - 5
x = 1
30 60 90 right triangle
if QR = 24 then the legs are 12 and 12√3
A = 1/2(18+6)(12) + 1/2(12)(12√3 )
A = 144 + 72√3
answer is A
144 + 72√3
Um Hi It is $90 so type $90
Answer:
nth term = 7n - 2
Step-by-step explanation:
a = first term = 5
d = common difference = second term - first term
= 12 - 5 =7
d = 7
a + (n-1)d
= 5 + (n -1)7
= 5 + 7n - 7 {add like terms}
= 7n - 2
Attached the solution and work. The x,y,n are just variables I put in so you could see how I solved for the missing angle.