Question discussion how would you apply special cases of factoring in everyday life?
1 answer:
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Replacing x by 4 and y by 2, it is found that the value of the expression is of 8.
The expression given is:
We want to evaluate it for x=4 and y=2, hence, we replace x by 4 and y by 2, then:
The value of the expression is of 8.
A similar problem, in which the objective is finding the value of an expression, is given at brainly.com/question/19548262
Answer:
The Correct option is C ) 25
Therefore the value of x is 25 when y =40.
Step-by-step explanation:
Given:
Variable 'y' is directly proportional to the variable 'x'.
......Direct Variation
Where,
k = Constant of proportionality
To Find:
value of x = ? when y = 40
Solution:
First we need to find Constant of proportionality
When x = 20 and y = 32
Substituting the values we get
Now when k =1.6 , y = 40 then x will be
Therefore the value of x is 25 when y =40.