Answer:
1) 12
2) an=n²+n-6/2
3) the 25th term
Step-by-step explanation:
check explanation in the attached image
Answer:
a =
x =
Step-by-step explanation:
Let's solve for a.
8x−5x+4−x=ax+8
Step 1: Flip the equation.
ax+8=2x+4
Step 2: Add -8 to both sides.
ax+8+−8=2x+4+−8
ax=2x−4
Step 3: Divide both sides by x.
Let's solve for x.
8x−5x+4−x=ax+8
Step 1: Add -ax to both sides.
2x+4+−ax=ax+8+−ax
−ax+2x+4=8
Step 2: Add -4 to both sides.
−ax+2x+4+−4=8+−4
−ax+2x=4
Step 3: Factor out variable x.
x(−a+2)=4
Step 4: Divide both sides by -a+2.
Hope this helps!
brainliest?
There are two methods I know. hope it'd help :)
Answer:
12.57in^2
Step-by-step explanation:
A = 2x2xπ = 12.57