I believe it would be b= -264
(I’m not 100% sure though so you might wanna check)
Step-by-step explanation:
Equation for circle centered at origin:
x² + y² = r².
Therefore r² = (-4)² + (-2)² = 20, r = √20.
Hence d = 2r = 2√20 = 8.94 (2d.p.)
The answer is 20p. P represents the number of boxes she buys and 20 is how many pens are in each box.
You can square the whole problem to cancel out the square root. Might make things easier.
Answer:
£
Step-by-step explanation:
£1 = €1.14 /
£=144€= £