Answer:
it is A and D :D
Step-by-step explanation:
Answer:

Step-by-step explanation:
To find
, we need to eliminate
in this system of equations:
(1)
(2)
From (1) and (2):


Then, we equalize both expressions and solve for
:




Answer:
Answer image is attached.
Step-by-step explanation:
Given rational expressions:

And the rewritten forms:

We have to match the rewritten terms with the given expressions.
Let us consider the rewritten terms and let us solve them one by one by taking LCM.

So, correct option is 3.

So, correct option is 1.

So, correct option is 2.

So, correct option is 4.
The answer is also attached in the answer area.
Formula for the area of a circle: A = pi * r^2
A semi-circle is half of a circle. So, we will need to divide the area of the total circle by 2 to find the area of a semi-circle.
r = d / 2
r = 6 / 2 = 3
A = pi * 9
A = 9pi
Semi-circle:
A = 9pi / 2
A = 4.5 pi cm^2 or 14.14 cm^2
Hope this helps!! :)
The second option down, "nine times the difference of a number cubed and three", is the correct answer.