Answer:
After 13 months the amount paid to both will be $830.
Step-by-step explanation:
60x13+50=830
50x13+180=830
Answer: 

Step-by-step explanation:
Given :

re - writing the equation , we have

we need to find the value of a and b for which -2<x < 4 , this means that the roots of the quadratic equation are -2<x < 4.
The formula for finding the quadratic equation when the roots are known is :
- sum of roots(x) + product of root = 0
sum of roots = -2 + 4 = 2
product of roots = -2 x 4 = -8
substituting into the formula , we have:
, which could be written in inequality form as

comparing with
, it means that :


Answer:
y = 3 + the square root of 2.
Step-by-step explanation:
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Answer:
20
Step-by-step explanation:
replace k with 13 then add so it should be 20