Its 81 centimeters because you round 5 and over. So nearest centimeter means 2 whole numbers which is 81
The answer is x=1/2 or 0.5
Answer:
6.34 × 10²
Step-by-step explanation:
Calculating scientific notation for a positive integer is simple, as it always follows this notation: a x 10b.
Step 1
To find a, take the number and move a decimal place to the right one position.
Original Number: 634
New Number: 6.34
Step 2
Now, to find b, count how many places to the right of the decimal.
New Number: 6 . 3 4
Decimal Count: 1 2
There are 2 places to the right of the decimal place.
Step 3
Building upon what we know above, we can now reconstruct the number into scientific notation.
Remember, the notation is: a x 10b
a = 6.34
b = 2
Now the whole thing:
6.34 x 10²
Step 4
Check your work:
10² = 100 x 6.34 = 634
Answer:
8 capsules
Step-by-step explanation:
The 100 mL of solution requires 4 capsules for its preparation. (4 × 150 mg = 600 mg). So, twice as much solution (200 mL) will require twice as many capsules. It will take 8 capsules to make 200 mL of solution.
The third option is the right one
