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
Answer:
3ac-a+2b
a=2,b=1,c=4
Step-by-step explanation:
3*2*4-2+2*1
24-2+2=24
Answer:
- 7
Step-by-step explanation:
d = a₂ - a₁ = a₃ - a₂ = - 2 - 5 = - 9 - (- 2) = - 7
Answer:
20 is 80% of 25
Step-by-step explanation:
We assume, that the number 25 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 25, so we can write it down as 100%=25.
4. We know, that x% equals 20 of the output value, so we can write it down as x%=20.
5. Now we have two simple equations:
1) 100%=25
2) x%=20
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=25/20
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.
7. Solution for 20 is what percent of 25
100%/x%=25/20
(100/x)*x=(25/20)*x - we multiply both sides of the equation by x
100=1.25*x - we divide both sides of the equation by (1.25) to get x
100/1.25=x
80=x
x=80
Answer:
15+8+6+2=31
Step-by-step explanation:
highest no. is 15
15-7=8
31-15-8=8
middle number 8
8-6=2
CHECK: 15+8+6+2=31
i don't know if my answer is right haha
i checked online it says the answer is 5,6,8,12
