A/4 + 2 = 6....subtract 2 from both sides
A/4 = 6 - 2
A/4 = 4...multiply both sides by 4, eliminating the 4 on the left side
A = 4 * 4
A = 16
-4 = r/20....multiply both sides by 20, eliminating the 20 on the right side
-4 * 20 = r
-80 = r
Answer:
18
Step-by-step explanation:
Absolute value is alwawys positve
So you do 18 x 8 to get the area of the rectangle bit. (18 x 8 = 144)
Then you can put the two half circles together to make a full circle. Area of a circle is
pi x radius x radius
so the radius would be half of the diameter (8/2 = 4)
so area would be:
Pi(equal to around 3.14) x 4 x 4 = 50.2
then you add the areas of the rectangle and circle
144 + 50.2 = 194.2
This is an equation that you convert from word form to number form.
Over is another way of saving divide by.
f/(2 - 22) < 48 is your equation.
To solve, get rid of the parenthesis by subtracting 2 - 22 and dividing by f.
f/-20 < 48
Multiply by -20 on both sides
f < -960
Hope this helps!
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