Answer: The required value of y is 22.
Step-by-step explanation: We are given the following function of a and b :

We are to find the value of y when a = 1 and b = 2.
To find the required value of y, we need to substitute the values of a and b in equation (i).
From (i), we get

Thus, the required value of y is 22.
Answer:
<h2>B. i = √(−1)</h2>
Step-by-step explanation:
When (i) is multiplied to itself it = -1
The number (i)is used for imaginary numbers.
The simplified expression of (-11/2x+30)-2(-11/4x-5/2) is 35
<h3>How to simplify the expression?</h3>
The expression is given as:
(-11/2x+30)-2(-11/4x-5/2)
Expand the bracket
-11/2x + 30 + 11/2x + 5
Collect the like terms
11/2x -11/2x + 30 + 5
Evaluate the like terms
35
Hence, the simplified expression of (-11/2x+30)-2(-11/4x-5/2) is 35
Read more about expressions at:
brainly.com/question/723406
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Answer:
A
Step-by-step explanation:
Answer: 2 because of the constant proportionality
Step-by-step explanation: hope this helps!