Petra takes $15 to the roller skating rink to spend on skates and food. Suppose it costs $4.75 to rent roller skates. Define a v
1 answer:
You might be interested in
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:
(D)$2079.23
Step-by-step explanation:
If I borrowed $11,250 from the bank to buy a used car. You will pay the bank back in 5 years with 3.45% interest compounded annually, then:
Principal=$11,250
Time=5 years
Rate=3.45%
Since it is compounded annually, our compound interest will be derived using this formula:
Interest=Amount at the end of 5 years - Principal
where:
Amount,
Therefore our Interest=13329.23-11250 =$2079.23