Answer:
all work is shown and pictured
Answer:
1 : 656250
Step-by-step explanation:
It is given that we need to dissolve 8 tablets of active ingredient B, each containing 3 mg, in 15,750 mL.
Tablets = 8
Weight of each tablet = 3 mg
Total wight of tablets = 8 × 3 = 24 mg
Total volume = 15,750 mL.
1 mL = 1000 mg
Total volume = 15,750000 mg
We need to find the ratio strength (w/v).



Therefore, the ratio strength (w/v) is 1 : 656250.
The answer should be 280.
Trắc nghiệm 3c, 4b
Tự luận 2a -48/5
2b x= 1/7
x=4/25
Answer:
189, -567, 1701
Step-by-step explanation:
this is a geometric sequence so we can find out what is done to each number to get the next one by taking for example 21 and dividing by -7. this gives us -3. we can check this again by dividing -63 by 21. we get the same answer, -3. so to find the next number in the sequence we multiply each number by -3 which gives us the numbers, -7, 21, -63, 189, -567, 1701