First, use distributive property on the right half.
2 * 5 = 10
2 * 2n = 4n
4n - 9 = 10 + 4n
Add 9 to both sides
4n = 19 + 4n
Subtract 4n from both sides
0 = 19
But thats not true. Therefore, there is no solution.
-5 is the base of -5g in this expression
A)
Let c be the number of right guesses.
the probability of c answers =.25 and probability of the wrong answer is 1-.25=.75
c distribution is in the parameter of (20, .25).
b) mean = 20 * .25== 5
c) p of c guess =.25 ^20 =9.095* 10 ^-13
d) p of 10 c guess =.014 or 1.4% it is not possible for him to have 10 right guess.
Unsure of what you mean by "reference number."
I do recognize that 11pi/9 is in quadrant III. I suspect that the so-called "reference number" is the acute angle between the end ray of 11pi/9 and pi, or, in more easily comparable numbers, between 9pi/9 and 11pi/9.
That difference is 2pi/9.
Answer: 14 turkeys and a cat
Step-by-step explanation: Getting 32 feet from 15 heads shows that an animal has more than 2 feet. If the 15 heads all belonged to turkeys, we'd have 30 feet (which is 2 short of what was observed). Reducing the number of turkey by 1 and adding a cat balances the number of observed feet. That is, 14 turkeys (with a total of 28 feet) and a cat (with 4 feet). Adding, we have 28+4=32
