Answer: D
Step-by-step explanation:
take the number to the right of the underlined digit. if its 4 or less, the digits of the underlined one to the left stay the same, while the digits on the right are turned into 0's.
I'll do a few to help you out:
1. *1*60,656 = 200,000
2. *1*49,590 = 100,000
3. 117,*8*21 = 117,800
Answer: 30g
Step-by-step explanation:
In this question (t½) of isotope is 40 days, which means that after 40 days half of the sample would have decayed and half would be left as it is.
After 40 days ( first half life) 240 /2 = 120 g decays and 120 g remains left.
After another 40 days ( two half lives or 80 days) 120 /2 = 60 g decays and 60 g remains left .
after three half lives or 120 days, 60/2 = 30g decay and 30 g of the isotope will be left.
Answer:
Step-by-step explanation:
Given a box with a square base and an open top which must have a volume of 237276 cubic centimetre. We want to find a formula for the surface area of the box in terms of only x, the length of one side of the square base.
Let the side length of the base =x
Let the height of the box =h
Since the box has a square base
Volume,
Surface Area of the box = Base Area + Area of 4 sides
Substitute h derived above into A(x,h)
Therefore, a formula for the surface area of the box in terms of only x, the length of one side of the square base is:
Based on the information given...
Experimental - how many times something occurs over how many times experiment is done
Odd number rolled - 8 times
Total times done - 20
This would mean the experimental probability is 8/20
Theoretical - favorable outcomes over possible outcomes
On a 6 sided number cube, you have 3 chances of rolling an odd, over 6 possible roll outcomes
This would mean the theoretical probability is 3/6 or 1/2
