You said -5 + 2a = -a - 8
Add 'a' to each side: -5 + 3a = -8
Add 5 to each side: 3a = -3
Divide each side by 3 : a = -1
Answer:
20.2 in sq
Step-by-step explanation:
the radius is 2.5 bc 5/2 is 2.5. then you do 3.14(r^2). in this case, r^2 is 6.25. then, you multiply that by 3.14, which is 19.625. then divide that by 2 and you get 9.8. the area of the whole thing is 30 in. so, you subtract 9.8 from 30 and you get 20.2
Answer:
an = 10 – 4(n – 1)
Step-by-step explaination
answer is an = 10 – 4(n – 1)
Answer:
5.5 minutes
Step-by-step explanation:
Fill in the given information and solve for t.
75 = -15cos(2πt/15) +65
-10/15 = cos(2πt/15)
t = 15/(2π)arccos(-2/3) ≈ 5.492
The volume reaches 75 dB about 5.5 minutes after the truck arrives.
Answer:
The square root of 961 is 31.
Check your work by doing 31 squared.
Hopefully this helped! :)