All of Sally's "likes" are squares: 225 = 15², 900 = 30², 144 = 12²
1600 = 40²
Sally "likes" 1600
Answer:
x = 3.6
Step-by-step explanation:
3/5 = x/6
multiply both sides by 6
18/5 = x
as a decimal
x = 3.6
190 miles
You just needed to find 19% of 1000
<h2>♪Answer : </h2>
»f(x) = 7x² - 3x + 7
»f(2) = 7(2)² - 3(2) + 7
»f(2) = 7(4) - 6 + 7
»f(2) = 28 - 6 + 7
»f(2) = 29
»f(-1) = 7(-1)² - 3(-1) + 7
»f(-1) = 7(1) + 3 + 7
»f(-1) = 7 + 3 + 7
»f(-1) = 17
»f(0) = 7(0)² - 3(0) + 7
»f(0) = 7(0) - 0 + 7
»f(0) = 0 - 0 + 7
»f(0) = 7
so, f(2) + f(-1) + f(0) is
The partial sum of a geometric sequence is
In your case a=3, so if we sum N terms of the sequence we have
We want this to me more than 1 million, so we have
Considering the log (base 3) of both sides, we have
So, starting from N=13, the sum of the first N terms will be more than 1 million
