There are infinitely many possible answers:add 8multiply by 2 and subtract 1multiply by 3 and subtract 10multiply by 4 and subtract 19etc are all possible rules.
57
It is: (5*12)-2 = 58
58
Just write it as 2 to the power n. You can't simplify that, and you can only calculate a specific value if you know the value of n.
15
5
(17-8)/2
By the signs: 2+2(Add) 2-2(Subtract) +=add -=subtract
To calculate the difference in pH strength of a solution, subtract the initial pH value from the final pH value. For example, if the initial pH is 5 and the final pH is 3, the difference in pH strength would be 2.
20 minus 17 minus 3 minus 2 equals -2
percentage change of 2 to 36 = 1700%% increase =|original value - new value|/original value * 100%= |2 - 36|/2 * 100%= 34/2 * 100%= 17 * 100%= 1700%
Square the standard deviations, subtract/add them and calculate the square root of the subtraction/sum. StDV=sqrt (StDvA^2+StDvB^2)
I donβt know
The answer is -26. -26 x -2 = 52 52 - 17 = 35
2z+17=21 subtract 17 from both sides. 2z=4 divide both sides by 2 z=2
1 and 2/189