Answer:
the circumference is 31.4159 (or 31.42)
10% = 10g/100ml. Ergo, 15ml/100ml (10g) = 1500mg of KCL
.9% NACL = 9g/1000mL, Ergo = 9000mg NaCl
Now we have to figure out how many mEqs of each salt we have.
MW of NaCl = 58.5
MW of KCl = 74.5
So, in moles, we have:
1500 KCl / 74.5 = 20.13 mmol KCl
9000 NaCl / 58.5 = 153.85mmol NaCl
Because the valence of both ions is one, as an example, it would be both 20.13 mEq of Cl- and K+ from 20.13 mmoles of KCL.
So, just add the two together, 20.13 + 153.85 = 174-ish.
Answer:
4.05 c
Step-by-step explanation:
Answer:
It's rational because it's not a decimal numbet
Steps
1. Know what the unit circle is...
2. Know the 6 trig ratios...
3. Understand what a radian is...
4. Be able to convert between radians and degrees...
5. Know the "special" angles...
6. Know and memorize the trig identities that give the 6 trig function angle...
7. Find and memorize the 6 trig functions for angles on the axes.
I hoped i help! :) have a fabulous day!
