W- (3,4)
Z- (-1,1)
X-(-1,-3)
Y-(-4,1)
Answer:
Lin needs to drink 27 more ounces of water
Step-by-step explanation:
To solve this problem we need to know how much is a cup of water in ounces
1 cup = 8 ounces
So, if Lin needs to drink 8 cups, this means that she needs
8 cup * 8 ounces/cup = 64 ounces daily
If she drank 37 ounces before lunch, she needs to drink
(64 - 37) ounces = 27 ounces = 3.375 cups
If you’re finding X and Y
X=-3 Y=0
Using elimination method
Answer:
a) The explicit formula is
b) The 31st term of the sequence is 222
Step-by-step explanation:
a) The explicit formula for an arithmetic sequence is:
The recursive formula for the sequence is
From this formula we can find the common difference by comparing to the general recursive formula:
This means the common difference d=7.
We now substitute the first term and the common difference into the explicit formula: to obtain:
Expand to get:
Simplify:
b) To find the 31st term of this sequence, we substitute n=31 in to the the explicit formula, to obtain:
Multiply to get:
Add to get:
Therefore the 31st term of the sequence is 222
11/4 would be the improper version.