Answer:

Step-by-step explanation:
We solve the inequality similarly to how we would solve an equalitu.




Multiplying everything by -1

Simplifying by 2


8 divided by 3 is 2 with rest two. So as a improper fraction, the answer is:

Answer:
or 
Step-by-step explanation:
we have

Group terms that contain the same variable, and move the constant to the opposite side of the equation

Complete the square. Remember to balance the equation by adding the same constants to each side


Rewrite as perfect squares



Answer:
a) we know that this is convergent.
b) we know that this might not converge.
Step-by-step explanation:
Given the
is convergent
Therefore,
(a)
The power series
has radius of convergence at least as big as 8. So we definitely know it converges for all x satisfying -8<x≤8. In particular for x = -3
∴
is convergent.
(b)
-8 could be right on the edge of the interval of convergence, and so might not converge
Answer:
she bought 5 erasers
Step-by-step explanation:
25-5 is 20 and 20 divided by 4 is 5