Answer:
0.3
Step-by-step explanation:
Total number of cases = 60.
favourable number of cases = 18. (Since 18 of them are wearing green shirt)
As we know probability of an event is given by ,
P = Favourable number of cases divided by Total number of cases
Thus here,
P = 
= 
or 0.3
Answer:
45
Step-by-step explanation:
Because if you replace the r with 3, it would be 15(3).
15(3) is the same as 15 × 3.
15 × 3 = 45
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Answer: 3 and -1
<u>Step-by-step explanation:</u>
The denominator cannot be zero.
⇒ (x - 3)(x + 1) ≠ 0
⇒ x - 3 ≠ 0 and x + 1 ≠ 0
⇒ x ≠ 3 and x ≠ -1
Answer: 243 cm²
Step-by-step explanation: If the diameter is 18, the radius is 9. Each square is 9×9, so 81 cm² for each. Multiply: 81×3 = 243
Or take the length times width to get area 27×9= 243
