Answer:
Step-by-step explanation:
x-2y=-2 x=2y-2
7x-3y=19
substitute x with 2y-2
7(2y-2)-3y=19 14y-14-3y=19 11y=33 y=3
substitue 3 for y
x-2(3)=-2 x-6=-2 x=4
x=4, y=3
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Answer:
Step-by-step explanation:
(5/10)(4/9)=20/90=2/9
Two-ninths
Answer:
a) The value of If(i)I = √2.
Step-by-step explanation:
Here the given function is f(x) = 1 - x
To Find: If(i)I
First;y, let us find the value of f(i).
Substituting x = i in f(x) , we get:
f(i) = 1- i
Now, The modulus value of a function P = A + B is written as :
So, here calculating the value of If(i)I :
⇒ I1-1I = √2
or, If(i)I =√2
Hence, the value of If(i)I for f(x) = 1 -x is√2.
Answer:
Not a function
Step-by-step explanation:
This is not a function because there are different outputs for the same input.
I think the answer is B
Step-by-step explanation:
because 25$ by 10 weeks = 75$
and $7.50 x 10 weeks= 75$