Answer: If the initial term of an arithmetic sequence is a 1 and the common difference of successive members is d, then the nth term of the sequence is given by: a n = a 1 + (n - 1)d The sum of the first n terms S n of an arithmetic sequence is calculated by the following formula: S n = n (a 1 + a n)/2 = n [2a 1 + (n - 1)d]/2
Answer:
uh i dont know lol im new how do i use this thing bahahaha
Step-by-step explanation:
Since $14 is the price after a 30% discount then $14 is 70% of the original price.
$14/70=x/100 (100% would be the original price)
1400=70x or 1400/70 = $20!
You can double check the work by taking 30% off the $20 (10% would be $2, 30% would then be $6) 20-6=14!
A = 1/3 * s^2 * h where s is a side of the base and h is the height.
It would be: 180 * 90/100
= 180 * 0.90 = 162
In short, Your Answer would be 162
Hope this helps!