Is known that
(a + b)² = a² + 2.a.b + b²
So:
(x + 4)² = x² + 2.x.4 + 4² = x² + 8x + 16
Answer:
b
Step-by-step explanation:
The two regular pentagons could be differnt sizes, so they are not all congruent hope this helps :)
Answer:
The answer is B
Step-by-step explanation:
You add up all the numbers which should be 600 and divide by the total amount numbers used.
600/15=40.
Answer:
<u><em>The balance of the odds must be for spins of different colours. Therefore, 81/81 - 29/81, the odds of getting two different colours.</em></u>
Answer:
39/80
Step-by-step explanation: