15
5
(17-8)/2
By the signs: 2+2(Add) 2-2(Subtract) +=add -=subtract
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%
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 don’t know
The answer is -26. -26 x -2 = 52 52 - 17 = 35
To subtract 9 from 7, you would first need to understand that 7 is a smaller number than 9. In order to perform the subtraction, you would need to borrow from a higher place value. In this case, you would need to borrow 1 from the tens place, making it 6 tens and adding it to the ones place, making it 17. Then, you would subtract 9 from 17, resulting in 8. Therefore, 7 minus 9 equals -2.
2z+17=21 subtract 17 from both sides. 2z=4 divide both sides by 2 z=2