Find the area of this regular polygon. Round to the nearest tenth. 8.8 ft
1 answer:
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Answer:
x>-1
Step-by-step explanation:
We will assume that here the question prompt us to solve the Inequality given and find the value of x for which is true and valid.
To begin with, let us re write our inequality clear as:
Eqn(1).
Now, since this is an Inequality it must be noted that <em><u>for any operation of multiplication/devision</u></em> with a<u> </u><u><em>Negative number</em></u>, the order of the Inequality will change from ≤ to ≥ and vice versa.
So having said that, let us solve Eqn(1) and obtain a value for as follow:
Remove Negative sign from both signs and change order of inequality from < to >.
Factor Out Bracket on Left Hand Side
Make Common Denominator on Both Sides
Eliminate denominator to simplify and remove fractions
Gather equal terms on each side
Simplify
Solve for
<em>Thus solving the inequality gives that x is greater than -1:</em>
<em> i.e. </em>
So first thing ya gotta do is find the area of the circular plates, which the equation is 
.
To get the radius, just divide the diameter, 30, by half. So in this case the radius would be 15.
Now that ya know that 15 is the radius, you can plug it into the equation.
(I would advise you don't round anything until the end to get more accurate answers.)
So now that you know the area of the plate, you're gonna just multiply the area by 1/3 for lasagna and 2/3 for the salad.
(also make sure to use cm^2 units!)
To get the radius, just divide the diameter, 30, by half. So in this case the radius would be 15.
Now that ya know that 15 is the radius, you can plug it into the equation.
So now that you know the area of the plate, you're gonna just multiply the area by 1/3 for lasagna and 2/3 for the salad.
(also make sure to use cm^2 units!)