The simplification of the expression will be as follows:
(a^7b^8)/(a^4b^4)
According to the rules of indices, when you divide numbers with the same base, it's the same as subtracting their powers. Hence we shall have:
(a^7b^8)/(a^4b^4)
=(a^(7-4))(b^(8-4))
=a^3b^4
the answer is a^3b^4
The rational function is defined as a polynomial of two parts. That is numerator and denominator i.e., denominator should not be zero.
Step-by-step explanation:
The given function is f(x)=13/10-x
Step:1
apply values to the term x in the given function,
Take X=1,
the equation becomes
f(1)=13/10-1
f(1)=1.444
Take X=2,
the equation becomes,
f(2)=13/10-8
f(2)=1.625
similarly,
f(3)=1.857,
f(4)=2.167,
f(5)=2.60,
f(6)=3.25,
f(7)=4.33,
f(8)=6.50,
f(9)=13,
but for f(10)= 13/10-10
f(10)=∞
f(11)=-13,
f(12)=-6.5,
f(13)=4.33,.. etc
so, f(x) is positive when the X value is less than 10.
f(x) is negative when the X value is more than 10.
but f(10)=∞ is never possible
Therefore, all the numbers are correctly apted expect zero
9514 1404 393
Answer:
(b) 28
Step-by-step explanation:
The total of the 3 numbers will be 3×15 = 45. Then the third number is ...
45 -7 -10 = 28
D is the correct answer to this question
