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.)
Answer:
positive integer
Step-by-step explanation:
In a bank account,
A paid out expense is called as debit
A deposit is called as credit
To find: sign used to represent credits
Solution:
Integers denote a set of natural numbers, their negative counterpart, and 0.
As credit denotes the amount deposited, the positive integer is used to denote credits.
297 cm is the total surface area of the square pyramid
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