Answer:
Its a
Step-by-step explanation:
AO = 21
BC = 14
OC = radius of the circle = AO = 21
∴ OB = OC + CB = 21 + 14 = 35
<span>Line AB is tangent to circle O at A</span>
∴ AB is perpendicular to AO
∴ Δ OAB is a right triangle at A
Applying Pythagorean theorem
∴ OB² = AO² + AB²
∴ AB² = OB² - AO² = 35² - 21² = 1225 - 441 = 784
∴ AB = √784 = 28
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Answer: 11,700 times
Step-by-step explanation:
First find the number of seconds in 3 minutes 15 seconds.
Each minute is 60 seconds so 3 minutes would be:
= 3 * 60
= 180
Add the 15:
= 195 seconds
Lightning strikes more than 60 times per second so we shall use 60 times
= 60 * 195
= 11,700 times
Given:
You spin the spinner once.
The possibilities are 6, 8, 17.
To find:
The probability of getting a prime number, i.e., P(prime).
Solution:
In the given numbers 6, 8, 17, only 17 is a prime number because it is divisible by 1 and itself.
6 and 8 are divisible by 2, so they are not prime.
The probability (in %) of getting a prime number is:
Therefore, the correct option is A.
