It should be 40 because 180 is the full line and then 90 is taken by the right angle. And the vertical angle makes the other one 50 so the one your trying to find is 40.
Answer:
is the answer.
Step-by-step explanation:
Well the first thing we would do is simplify all the exponents first inside the parenthesis. So 2^-3 is equal to 1/8. To solve negative exponents you would just divide the number instead of multiply, so 2 divided by 2 divided by 2 is equal to ⅛ or .125
Next would be to do the 2^-9. This would equal 1/512
Now would be to simplify 5^0. Anything to the power of 0 is always one. So now we simplify all the products meaning 7*5*2 and 7*3.
Now we would simplify both fractions.
The picture are pretty much self explanatory. If you have any questions feel free to ask in the comments - Mark
Also when you have the chance please mark me brainliest.
Step-by-step explanation:
Total = n, Blue = 1 Red = n-1
(a)The prob. that two bags are blue and red each = prob. of blue and the prob. of red =1/n × n-1/n =n-1/n^2
(b)