Answer:
Step-by-step explanation:
Perimeter of a square:
The perimeter of a square of side x is given by:
Perimeter of a rectangle:
The perimeter of a rectangle of length l and width w is given by:
The length of the sides of a square measure 2x-5.
This means that the perimeter of the square is:
The length of a rectangle measures 2x, and the width measures x + 2.
This means that the perimeter of the rectangle is:
For what value of x is the perimeter of the square the same as the perimeter of the rectangle?
This is x for which:
So
Answer: i) 30 students for chemistry
ii) 21 students for only one subject
iii) 61 students
Step-by-step explanation: from the question we got 30 students registered for chemistry. number students only for biology = (27-18) = 9
number of students only for chemistry = (30-18) = 12
number of student registered for only one subject = (12+9)= 21
number of students registered for neither two subjects = {100-(9+12+18)} = 61
Tan(Angle) = Opposite leg / Adjacent leg
Tan(A) = 5/7
A = Arctan(5/7)
A = 35.54 degrees.
I think it’s going to be 60
Answer:
the correct answer would be r=
Step-by-step explanation:
hope this helps
plz mark brainliest
