For the inverse variation equation xy=k what is the constant of variation k when x=-3 And y=-2
2 answers:
ANSWER
The constant of variation is 6.
EXPLANATION
The inverse variation equation is:
We want to find the constant of variation, when x=-3 and y=-2.
We substitute the values for x and y to get,
Multiply out the left hand keeping in mind that negative times negative yields a positive result.
This implies that;
Hence the constant of variation is 6.
Answer:
The constant of variation k is 6.
Step-by-step explanation:
Given that there is inverse variation between x and y with equation
we have to find the constant of variation k when x=-3 and y=-2
The inverse variation equation is:
To find constant of variation we substitute the values of x and y
Put x=-3 and y=-2
Solve LHS by multiplying
This implies
Hence the constant of variation is 6.
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Hello!
First of all, let's find the triangle. As we can see, it is eight units long and four units tall. We can use the triangle formula and half the product.
4(8)=32
32/2=16
Now we need to find the area of the semicircle. We can use circle formulas and half our final answer. We will find the area using A=r².
We know that the diameter of this circle is eight. Therefore our radius is 4.
A=²
A=
Now we multiply.
16≈50.27
Now we add our triangle.
50.27+16=66.27
The nearest answer to this is B)66.2. It may have been a bit over as we used , not 3.14.
I hope this helps!