No I do not agree with (2,-4) I believe the solution is (-4,2)
Eighteen tens < 21 × (5+5)
Hope this helps!
Use PEMDAS. Parenthesis, Exponents, Multiply, Divide, Addition, Subtraction.
So, you'd distribute 5 into the parenthesis, leaving you with 9+20x+20, then add like terms. 20x+29
Area = π r²
area of the required sector = (80/360) π * 15²
≈ 157.08
Answer:
the triangle is an isosceles triangle.
Step-by-step explanation: