Answer:
6
Step-by-step explanation:
We know that the area of a circle is equal to 
.
A semi-circle is a half-circle, meaning that it will have half of the area of a full circle.
Therefore, a semi-circle's area is equivalent to 
.
Set this equation equal to 18.
Solve for r.
We then find that r = 6.
Now, we need to find the circumference. We know that the equation for the circumference of a circle is 2r. Since we only need the perimeter of half of a circle, our circumference equation will equal r.
Plug 6 in for r.
The perimeter of the garden is equal to 6.
Answer:
Cara multiplied only 4 and 7 together and did not multiply 4 and 13.
Step-by-step explanation:
She didn't distribute the 4 to both numbers inside the parenthesis. If she had done so, she would have gotten 28 - 42, <em>not</em> 28 - 13.
Answer:
b. (-5, 4)
Step-by-step explanation:
edge2020
Answer:
The corresponding point is (1 , -8)
Step-by-step explanation:
∵ Point (4 , 8) on the graph of f(x)
∵ f(x+3) means the graph of f(x) moved horizontally 3 units to the left
∵ x-coordinate = 4 in f(x)
∴ x-coordinate = 4 - 3 = 1 in f(x+3)
∴The point is (1 , -8)
Answer:
y=-6x-15
Step-by-step explanation:
You are correct!
