See each answer below.
1) If we subtract 7 from both sides and try to take the square root, we are taking the square root of -7. Therefore, there are no solutions.
2) Dividing by 3 and taking the square root gives an answer of 0.
3) Add 4, multiply by 4 and finally take the square root of each side.You will get positive or negative four.
4) Divide by 4 and then take the square root. You have positive or negative 5/2.
The Area of rectangle is "
" and the equation of the semi circle is "
".
According to the question,
The vertices of rectangle,
(5, 0) and (-5, 0)
Length,
l = 10 unit
Breadth,
b = 3 unit
Radius of semi circle,
r = 6
Centre of origin,
(0, 0)
As we know,
→ The Area of rectangle is:
= 
= 
= 
and,
→ The Equation of semi circle is,

by substituting the values, we get


Thus the above is the correct answers.
Learn more about Area of rectangle here:
brainly.com/question/14383947
Answer:
The first one is 120 and the second is 200
Step-by-step explanation:
The range value is the domain value times 40