What is the value of the discriminators 3x^2-4x+2=0
1 answer:
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Answer:
58cm squared
Step-by-step explanation:
Ok so what we first want to do is find out the total area of that rectangle.
The way we do this is by multiplying the width x height which in this case is 10 cm and 7 cm.
This gives us 70 cm as the total area of the rectangle if the circular hole wasn't there. Now we need to find the area of the circle.
The way we do this is by taking the circle and finding the radius. The radius is shown as 2cm.
Now the formula to find the area of a circle is which means it is about 3.14 multiplied by r squared.
R squared in this problem is going to be 2 x 2 which is 4.
Now we just do 3.14 times 4 which gives us about 12.
What we do next is subtract 12 from the total area of the rectangle which is 70.
This gives us 58cm squared as an answer.
Hope this helped ! !
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