Answer:
1023.75
Step-by-step explanation:
The sum of a geometric sequence is
sum = a( 1 - r^n) / (1-r)
where a is the first term r is the common ratio and r^n is the nth term
We need to find the common ratio
r = 256/512 = 1/2
sum = 512 ( 1 - 1/2^12) / ( 1-1/2)
=512( 1-.000244141) / (.5)
=512(.999755859) /.5
=1023.75
Answer:
$86.03
Step-by-step explanation:
30% off = 70% of total price. Add .06 to 1 for 6% sales tax.
($115.95*(.70))*1.06
= $86.03
Answer: b=6
Step-by-step explanation:
6 is in the y intercept place so it equals 6
Answer:
1/9
Step-by-step explanation:
Answer:
80/1 1/4 (Fraction)
Step-by-step explanation:
![speed = \frac{distancs}{time} \\ \\ \hspace{29pt}= \frac{80}{1 \frac{1}{4} } mph](https://tex.z-dn.net/?f=speed%20%20%3D%20%20%5Cfrac%7Bdistancs%7D%7Btime%7D%20%5C%5C%20%20%20%5C%5C%20%20%20%5Chspace%7B29pt%7D%3D%20%20%5Cfrac%7B80%7D%7B1%20%5Cfrac%7B1%7D%7B4%7D%20%7D%20%20mph)