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Parentheses are important in the order of operations. This is a good example.
For -(2^-2) we find -.25
Because it is 1/-2^2=-1/4 or as a decimal, -.25
For (-2)^-2 we find 0.25
Because it is 1/(-2)^2 = 1/4 or as a decimal, .25
If you mean (-2)^(-2) =
Then
(-2) ^(-2( = 1/(-2)^(2) Note the hegative power has gone!!!!
1( (+)4) = 1/4
Because (-2)^(2) = -2 x -2 = (+)4 = 4
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Earn +20 pts
How do you make the numbers 0-20 with four 2s only?
(2+2)/(2+2)=1 (2/2)+(2/2)=2 (2*2)-(2/2)=3 (2+2+2)-2=4 (2+2)+(2/2)=5 (2*2*2)-2=6 ((2-.2)/.2)+2=7 2+2+2+2=8 (22/2)+2=9 ((2+2)*2)+2=10 ((2-.2)/.2)+2=11 (2+2+2)*2+=12 (22/2)+2=13 (2/.2)+(2+2)=14 2+(2/2)/.2=15 (2+2)*(2+2)=16 ...??????????=17 ((2+2)/.2)-2=18 ((2+2)-.2)/.2=19 22- √(2+2)=20
2 to the power of 30?
230.2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2 = 1073741824
What is 2 to the 18th power?
2^18 = 262,144(2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2)
What is the factor tree for 256?
256 2, 128 2, 2, 64 2, 2, 2, 32 2, 2, 2, 2, 16 2, 2, 2, 2, 2, 8 2, 2, 2, 2, 2, 2, 4 2, 2, 2, 2, 2, 2, 2, 2
What is 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2x0?
2+2+2+2+2+2+2+2+2+2+2+2+(2x0) =2+2+2+2+2+2+2+2+2+2+2+2+0 =24
How do you make the numbers 0-20 with four 2s only?
(2+2)/(2+2)=1 (2/2)+(2/2)=2 (2*2)-(2/2)=3 (2+2+2)-2=4 (2+2)+(2/2)=5 (2*2*2)-2=6 ((2-.2)/.2)+2=7 2+2+2+2=8 (22/2)+2=9 ((2+2)*2)+2=10 ((2-.2)/.2)+2=11 (2+2+2)*2+=12 (22/2)+2=13 (2/.2)+(2+2)=14 2+(2/2)/.2=15 (2+2)*(2+2)=16 ...??????????=17 ((2+2)/.2)-2=18 ((2+2)-.2)/.2=19 22- √(2+2)=20
2 to the power of 30?
230.2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2 = 1073741824
2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2?
21
What is 0.2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 repeating?
As a fraction it is: 2/9
What is 2 to the 18th power?
2^18 = 262,144(2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2)
What is 2 2 2 2 2 2 2?
2,222,2222 + 2 + 2 + 2 + 2 + 2 + 2 = 7(2) = 142 - 2 - 2 - 2 - 2 - 2 - 2 = 2 - 6(2) = -102*2*2*2*2*2*2 = 27 = 1282/2/2/2/2/2/2 = 2/26 = 1/32Otherwise, it's just a bunch of 2's.
What is the factor tree for 256?
256 2, 128 2, 2, 64 2, 2, 2, 32 2, 2, 2, 2, 16 2, 2, 2, 2, 2, 8 2, 2, 2, 2, 2, 2, 4 2, 2, 2, 2, 2, 2, 2, 2
2*2*2*2*2*2*2*2*2*2*2*2*2?
8192
2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2?
32
What is 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2x0?
2+2+2+2+2+2+2+2+2+2+2+2+(2x0) =2+2+2+2+2+2+2+2+2+2+2+2+0 =24
What is 2 2 2?
2+2+2=6
What are all the factor of 128?
2 * 2 * 2 * 2 * 2 * 2 * 2, or 27. Broken down as follows..... 128 2, 64 2, 2, 32 2, 2, 2, 16 2, 2, 2, 2, 8 2, 2, 2, 2, 2, 4 2, 2, 2, 2, 2, 2, 2
