(x+y)^2-x^2-y^2=xy=8
xy*(x+y)=32=x^2*y+x*y^2
(x+y)^3-3x^2*y-3y^2*x=x^3+y^3=-32
:D
That's not correct because each term is greater than the one before it. Since there are 49 pairs, we have to subtract 49 to get 88 divide by 2 to get 44 and add the 49 back. 93.
This looks accurate to me...
a) 1/3*1/3*1/3=1/27
b) 1/3*1/3*2/3=2/27
c) 1/3*1/3*1/3=1/27
Add all three equations together to get a+8=0 so a is -8
we can draw out the angle bisectors and set variable x to get the three angles are 50, 50, and 80
If the exterior angle is 80, then the top angle is 100 and the congruent angles are 40 each. Because there's an altitude there is a right triangel with one angle 90 and the other 40. The other angle is 50 degrees.
The first letter has 2 choices and the last 4 have 12 each so there are 2*12^4 or 41472 ways.
Lets try a list of primes
2: 5^23 is odd 2^23 is even No
3: 5^23 is -1mod3 2^23 is -1mod3 No
5.: 5^23 is divisible by 5 2^23 is not No
7: 5 and 2 are additive inverses mod 7. Exponent is odd. Yessssss
The total age of the turtles is 440 and the average is 22. After 2 turtles escaped, there were 18 turtles left with an average of 21 so the total age is now 378. The sum of the ages of the two escaped turtles is 62 so one is 26 and the other is 36, so the age of the box tutle is 36.
