Answer:
12897 square feet
Step-by-step explanation:
So first find the area of the square:
85 * 85 = 7225
Then, the two semi circles together is a full circle. Use the circle area formula,
A = πr^2
The radius (r) would be half the diameter of the circle. The diameter of the circle would be 85. So half of that is 42.5. The radius is 42.5
Now:
A = π(42.5)^2
A = 3.14(42.5)^2
A = 3.14(1806.25)
A = 5671.625
Lastly, add the two areas up for the square and circle:
7225 + 5671.625 = 12896.625
Round to nearest tenth: 12897
Step-by-step explanation:
=(g-f)(n)
=4n+7-2n-3
=2n+4
£350 because 420/6 is 70 and 70*5 is 350
Answer:
1. 16−6=10
2. 4⋅2+1
3. x÷25
4. y+8=40
Explanation:
This is an equation—two expressions are connected with an .This is an expression—no equal sign.
This is an expression—no equal sign.
This is an equation—two expressions are connected with an equal sign.
Answer:
12.5 square units.
Step-by-step explanation:
Step 1: draw the other diagonal, ACF. You have now divided the square into 8 triangles.
The area of the whole square is 10 by 10 square units, or 100. Each triangle will be 1/8th of the total surface, or 12.5 square units.