Probability that the questions are answered corectly1/4 = 0.25
probability that they are answered wrong 3/4 = 0.75
probability that 4 out of 7 are corect 7C4(0.25)4(0.75)3 which equals 0.0577
0.05,reverse. if you have 0.05 and times it by 100 you get 5% and I divided 5% by 100 to get the answer, hope this helps! :)
Answer: 5 and 764 over 999
5764 over 9999
5 and 764 over 99
5 and 999 over 764
Step-by-step explanation:
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
Answer: 18 cm
Step-by-step explanation:
- C= 2πr
- plug it in! 36 π = 2 π r
- divide both sides by π and you get 36= 2r
- divide both sides by 2 and you get that 18= r
- so r, or the radius, equals 18
