Answer:40
Step-by-step explanation:
On a fair die, each face has a 1/6 chance of landing on each toss.
5 and 6 are the only faces greater than 4, therefore there is a 1/6 + 1/6 = 2/6 chance of the die landing on a number greater than 4 for each toss.
Multiply the probability by the total number of tosses to get the number of tosses that are greater than 4.
120 * (2/6) = 240/6 = 40
Approximately 40 tosses will land on a number greater than 4.
The trick here is to not use sin and cos at all.
The -13/15 is the x coordinate of a line from the origin to the unit circle (the line with angle theta). That happens to be the cos(theta).
The y coordinate is the sin(theta).
You can draw this as a triangle where x^2 + y^2 = 1.
So y = √(1 - (13/15)^2) ≈ 0.49889. But your exact answer should be:
Answer: The answer is C
Step-by-step explanation: This is because 12.5 divided by 7.5 is equal to 1.6
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Hey there! I think the answer is -6r + 5
Answer:
25, 36, 49
Step-by-step explanation:
Start with a definition of perfect squares. Basically, they're the result of a number multiplied by itself. 2*2, or 2² = 4, which is a perfect square. 3*3, or 3² = 9, and so on. You can keep listing these until you get inside the interval you want (from 22 to 50).
4² = 16
5² = 25 ... so now we're where we want to be!
6² = 36 ... still good
7² = 49 ... that's lower than 50 still
8² = 64 ... and now we're over our limit, so 8 doesn't do the job for us.
The only perfect squares matching your criteria are 25, 36, and 49.