Answer:
(x:21,30,39,48)(y:7,10,13,16)
Step-by-step explanation:
For an inverse, the x value becomes the output and the y values becomes the input
(x:21,30,39,48)(y:7,10,13,16)
Answer:
10 and 2
Step-by-step explanation:
One number is 8 less than the other.
10+2=12
10-8=2
10+2=12
I agree its 167 but if that was an example you basically just cross multiply whenever you have a similar problem:
167/100 = x/100
100x = 167 * 100
x = 16700 ÷ 100
x = 167
Answer:
c, and b.
Step-by-step explanation:
because it's the same as the ordered pair.
Answer:
x=√2, x=-√2, x= 3 and x=-3
Step-by-step explanation:
We need to solve the equation x^4 - 11x^2+18=0
We can replace x^4 = u^2 and x^2 = u
So, the equation will become
u^2 -11u+18 = 0
Factorizing the above equation:
u^2 -9u-2u+18 =0
u(u-9)-2(u-9)=0
(u-2)(u-9)=0
u=2, u=9
As, u = x^2, Putting back the value:
x^2 =2 , x^2 =9
taking square roots:
√x^2 =√2 ,√x^2=√9
x=±√2 , x = ±3
so, x=√2, x=-√2, x= 3 and x=-3
