Answer: 63 units I believe
In a right angled triangle 'efg' cos a = 3/5
From Pythagoras theorem the third side will be 4
cos a =3/5
sin a =4/5
sin 2a =2 x 4/5
sin 2a= 8/5
Like... 276 divided by 4... My 4th grade teacher is teaching us a way of long division, here are the steps. Divide, Multiply, Subtract Bring down, Repeat... Here is the example. 4 to 2, I cant make 2 with 4. 4 is too big, then i go to 27. the closest i can get is 6x4 to make 24. then on top i put 6, then i multiply 4x6 and put 24 down below 27. Then I subtract then bring down the 6. Next step, repeat. Do 4 divided by 3, the closest i can get to 4 is by doing 3x1 so i put the 1 up by the 6 then multiply 1x4. Which is 4, then i bring it down then subtract 36 - 4. You get 61 with a remainder of 4. :) Hope that helped and isn't too confusing!
Answer:
<em>P = 28.57%</em>
Step-by-step explanation:
<u>Probability</u>
The probability of an outcome is defined as the frequency of the number of times the outcome occurs relative to the number of times that it could have occurred.
The equation to calculate the probability is:
Where f is the number of favorable cases and n is the total cases.
The spinner has n=7 equal spaces numbered 1 to 7. We will calculate the probability that the spinner lands on a 4 or a 6.
The set of favorable outcomes is {4,6} which gives a count of f=2.
The required probability is:
P = 28.57%