Answer: 30 degrees
Step-by-step explanation:
90 - 60 = 30
Answer:
10
Step-by-step explanation:
I may be wrong but if each of the four rooms required two cans, 4x2 is 8. then it says you spilt half a can, making that 8.5 cans. but, you have 1.5 cans left. 8.5+1.5= 10.
Answer:
See explanation below.
Step-by-step explanation:
The prime numbers are bold:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
18 19 20 21 22 23 24 25 26 27 28 29 30 31
a) We can see that as we go higher, twin primes seem less frequent but even considering that, there is an infinite number of twin primes. If you go high enough you will still eventually find a prime that is separated from the next prime number by just one composite number.
b) I think it's interesting the amount of time that has been devoted to prove this conjecture and the amount of mathematicians who have been involved in this. One of the most interesting facts was that in 2004 a purported proof (by R. F. Arenstorf) of the conjecture was published but a serious error was found on it so the conjecture remains open.
3) Missing in 3): ∠EDF and ∠ADC = "Vertical angles"
Calculate x°:
∠ EDF = 120°
∠ EDF = ∠ ADC (Vertical) , but ∠ ADC = 3x° + 2x°,
Then 3x°+2x° =120°
5x° = 120° and x° =120/5, so x° =24°