Answer:
86 cm²
Step-by-step explanation:
<u>1) Calculate the area of the square</u>

Therefore, the area of the square is 400 cm².
<u>2) Calculate the area of the circle</u>

we can substitute with 3.14. To find the radius, we divide the diameter of the circle by 2. 20 cm is the diameter of the circle, so therefore, its radius is 10 cm.

Therefore, the area of the circle is 314 cm².
<u>3) Subtract the area of the circle from the area of the square</u>

Therefore, the area of the shaded region is 86 cm².
I hope this helps!
Answer:
120 square feet ( 13.333 square yards)
Step-by-step explanation:
8 ft x 15 feet = 120 ft^2
3 is the coefficient because n is the variable
Answer:
(-2,-1)
Step-by-step explanation:
y = -x - 3
you replace the x with the -2
y = -(-2) - 3
y=2-3
y=-1
Answer:
C- Divide both sides by 3.
Step-by-step explanation:
In order to isolate the variable, we will have to remove all non-1 coefficients from the variable. Since 3b can be written as 3(b), b is being multiplied by 3. So the only way to isolate the variable is to do inverse operations, which would be to divide both sides of the inequality by 3.
Hope this helped!