Answer:
39.85
Step-by-step explanation:
40 3/5 - 3/4
Find a LCF first:
5*4 = 20
4*5 = 20
The LCF is 20.
40 12/20 - 15/20
812/20 - 15/20
797/20
39.85
PH is calculated by the negative logarithm of the hydrogen concentration in a solution. Therefore, the pH in this case is:
pH = -log (0.0000006)
pH = 6.22
Therefore the correct answer among the choices is the last option, pH of 6 with a color pink.
Answer:
5.4
Step-by-step explanation:
x distance = 5 and y distance is 2 so you can use pythagorean theorem which is
and you get 5.4
1. (2x + 1)(x - 7)
2. -x - 4
3. -31x -35
4. 57x + 112
5. (-x) (-x)
Answer:

Step-by-step explanation:

Hope this helps!