It'd be easier to do #18 if y ou were to break it up:
14* (first term + 14th term)
Sum from n=1 to 14 of n = S = ---------------------------------
14 2
14(1+14)
= ---------------- = 7(15) = 105
2
The sum of twice that is 210. The sum of "1 from n=1 to n=14" is just 14.
The final sum is 210 + 14 = 224 (answer)
Write it as an equation:
X - 10 = 6x + 3
Now solve for x:
Subtract 3 from both sides:
x-13 = 6x
Subtract 1 x from both sides:
-13 = 5x
Divide both sides by 5:
x = -13/5
Answer:
9 in
Step-by-step explanation:
The diameter of a circle is a chord or line that passes through the center point of a circle. It's like a radius, except the line extends to the other side
Hope this helps!
JoeyHill
Answer:
If you simplify it you get d^2-4d
Step-by-step explanation:
Answer:
These reflected points represent the inverse function
Step-by-step explanation:
This is just one of the rules that are true.
