Answer:
SP = 627 Rs
Step-by-step explanation:
Percentage loss is calculated as
, then
= 5% = 0.05 ( multiply both sides by 660 )
660 - SP = 33 ( subtract 660 from both sides )
- SP = - 627 ( multiply both sides by - 1 )
SP = 627 Rs
13) For f(x) = 5x + 1, find f(4).
1 answer:
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Answer:
yes
Step-by-step explanation:
There are several ways to go at this.
My first choice is to use a graphing calculator. It shows the function has a zero at x=5, so x-5 is a factor.
Another good choice is to use synthetic division (2nd attachment). If the remainder is zero, then x-5 is a factor. It is and it is.
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You can also evaluate the function at x=5. The remainder theorem tells you that if the value is zero, then x-5 is a factor. Evaluating the polynomial written in Horner form is a lot like synthetic division.
(((x -4)x -15)x +58)x -40 for x=5 is ... (-10·5 +58)5 -40 = 40-40 = 0
The value of h(5) is zero, so x-5 is a factor of h(x).
