it is a bracket used in maths
Answer:
154cm^2
Step-by-step explanation:
Area of circle= pi×r^2
= 22/7 × (7cm)^2
= 22/7 × 49cm^2
= 154cm^2
Answer:
Step-by-step explanation:
(x - 3)(x + 6)
=x(x + 6) -3(x + 6)
=x*x + x*6 - 3*x - 3*6
=x^2 + 6x - 3x - 18
=x^2 + 3x - 18
Answer:
1. 7,700 grams 2. 420,000 milligrams or 420 grams
