Which equations represent functions?
2 answers:
Answer:
Option A -
Step-by-step explanation:
To find : Which equations represent functions?
Solution :
Function is defined as the relationship between two variables in which one variable is dependent s.t. for one variable we have the value of other.
From the given options,
A.
This is a function of variable x and y forming a linear equation.
B.
This is not a function as there is only one variable x.
C.
This is not a function as there is only one variable x.
D.
This is not a function as there is only one variable y.
E.
This is not a function as there is only one variable x.
Therefore, Option A is correct.
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Answer: It should be 3w - 6y + 3
Step-by-step explanation:
-Solve:
-Use Distributive Property:
-Then, combine like terms:
Result:
Answer:
25.61 feet
Step-by-step explanation:
First, we can draw a picture (see attached picture). With the wall representing the rightmost line, and the ground representing the bottom line, the ladder (the hypotenuse) forms a 80 degree angle with the ground and the wall and ground form a 90 degree angle.
Without solving for other angles, we know one angle and the hypotenuse, and want to find the opposite side of the angle.
One formula that encompasses this is sin(x) = opposite/hypotenuse, with x being 80 degrees and the hypotenuse being 26 feet. We thus have
sin(80°) = opposite / 26 feet
multiply both sides by 26 feet
sin(80°) * 26 feet = opposite
= 25.61 feet as the height of the wall the ladder reaches
Answer:
Step-by-step explanation:
