9514 1404 393
Answer:
71.447296
Step-by-step explanation:
The sequence is geometric with first term 100 and common ratio -0.4. Then the sum of n terms is ...
Sn = 100(1 -(-0.4)^n)/(1 -(-0.4))
and the sum of 9 terms is ...
S9 = 100(1 -(-0.4^9))/(1.4) = 71.447296
It is B y = 2x + b so that is the answer
Answer: α²ₓ=7.9056
Step-by-step explanation:
The average price of a college math textbook = $158
the standard deviation given= $25
Supposed number of textbooks =10
∴ n=10
So you've gotta have a variable representing the number of seconds between the time when you see lightning and the time when you hear thunder. I'm going to use <em>x.
</em>So equation:
<em /><em>x</em>/5=2
Solving:
you have to multiply both sides by five, so it becomes:
<em>x</em> = 10
so it's 10 seconds!
yes it would be 24 feet tall
