Answer:
15 a. It is not a rectangle bc the sides of a rectangle are always the same.
b. It is a right triangle bc on D it is 90 degrees.
c. It is not an isosceles triangle bc an isosceles triangle's base is always even but the one in the picture is not
Step-by-step explanation:
Please, use the symbol " ^ " to denote exponentiation. At first I had no idea what you meant by 3r2.
You are using the approx. formula A = 3 r^2 to find the area.
The given radius is 4.3 inches. Subst. this value for r in the above equation.
Find A (keeping in mind that it's an approximation).
So you have 10 marbles all together. you remove one and dont replace it. it will be 3/9 which simplifies to 1/3.
Ans : C
just flip ur phone after taking the photo
To simplify this, we need to distribute the coefficient:

The answer is C.