Answer:
<u> ≈4.24x</u>
Step-by-step explanation:
Have a nice day! :)
A line will always be a injective function, because for a value of x there are only one value to y. So, this function is injective.
Answer: 1/4
Step-by-step explanation:
A die has 6 figures which are 1, 2, 3, 4, 5 and 6. There are 3 even numbers which are 2, 4 and 6. A coin has 2 outcomes which are head or tail.
The probability of getting an even number is 3/6 = 1/2.
The probability of getting a head is 1/2.
Therefore, the probability of obtaining an even number and a head will be:
= 1/2 × 1/2
= 1/4
Answer:
Step-by-step explanation:
Both are essentially same questions, considering 30 = 25 + 5.
<u>Solving c)</u>
Answer:
15 seconds.
Step-by-step explanation:
∵ The distance covered by plane in first second = 100 ft,
Also, in each succeeding second it climbs 100 feet more than it climbed during the previous second,
So, distance covered in second second = 200,
In third second = 300,
In fourth second = 400,
............, so on....
Thus, the total distance covered by plane in n seconds = 100 + 200 + 300 +400......... upto n seconds
( Sum of AP )
Suppose the distance covered in n seconds is 12,000 feet,
∵ n can not be negative,
Hence, after 15 seconds the plane will reach an altitude of 12,000 feet above its takeoff height.