1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mojhsa [17]
3 years ago
9

The half-life of a radioactive kind of thallium is 3 minutes. If you start with 80 grams of it,

Mathematics
1 answer:
padilas [110]3 years ago
4 0
- After 3 minutes you have half. 40grams
- After 3 more minutes you have half of that. 20 grams
- After the last 3 minutes you have half of that. 10 grams
You might be interested in
What is the quotient of 6 1/4 ÷ (-5/8)​
GarryVolchara [31]

Answer: -10

Step-by-step explanation:

1. Convert 6 1/4 to an improper fraction

25/4

2. Find the quotient using the keep, change, flip method

- Keep the first fraction (25/4)

- Change the division sign to a multiplication sign

- Flip the second fraction (i.e. find the reciprocal)

-5/8 -> -8/5

3. Multiply and solve by multiplying the numerators and denominators together respectively

25/4 * -8/5

25*-8 = -200

4*5 = 20

-200/20 = -10

5 0
3 years ago
Read 2 more answers
What are the coordinates of this polygon's vertices?
Ostrovityanka [42]

coordinates are (x,y)

so for each point, go across the x axis and up the y axis

for the first point, you go over 1 unit and up one unit so the point is

(1,1)

for the second point, you go over 1 unit, but up 4 units so the point is

(1,4)

for the third point, you go over 5 units and up 1 unit so the point is

(5,1)

so your answer is

B) (1,1), (5,1), and (1,4)

5 0
3 years ago
Read 2 more answers
How do you solve this for h?
pshichka [43]

Answer:

-multiply both sides by 2, so you will have 2A= h(b+c)

- divide both sides by (b+c), so you will have 2A/(b+c)=h and this is your final answer

7 0
3 years ago
Eden bought a new phone. The phone's retail price is $199. In addition, she paid sales tax of 8% of the retail price. A few days
natka813 [3]

Answer:

164.92

Step-by-step explanation:

6 0
3 years ago
HELP ME PLEASE
xxMikexx [17]
The graph x2 only has 1 x-intercept, because it is directly on the origin.
The graph x2+2 is the parent function shifted up by 2 units. Since the lowest point is (0,2) and the graph points up, it has no x-intercepts.
6 0
3 years ago
Other questions:
  • Peter walks 30 feet away from his house and places a mirror on the ground. He backs 6 feet away from the mirror so that he can s
    7·1 answer
  • Train A leaves Westtown and travels at 50 mph toward Smithville, 330 miles away. At the same time, Train B leaves Smithville and
    15·1 answer
  • Mr. Gregory sold several cars this week. Here is some data about the cars he sold. Car sold Retail price Miles per gallon Seats
    9·1 answer
  • Henry has 25 marbles in a bag:6 red, 5 yellow, 3 orange, and 11 green.Henry randomly chose a a marble from a bag.Is this a rando
    9·1 answer
  • State if the three sides lengths form an acute, obtuse, or right triangle: 7 in, 11 in, 13 in a acute b obtuse c right
    8·1 answer
  • 3х^2–36 = — 84<br> can someone help me with this one
    15·2 answers
  • On his drive from Montpelier, Vermont, to Columbia, South Carolina, Arthur averaged 51 mph. If he had been able to average 60 mp
    5·1 answer
  • Does PY=PZ no or yes<br>​
    11·1 answer
  • Help pleaseeeeeee tyyyyyyyyy
    14·2 answers
  • Find the perimeter of the figure to the nearest hundredth​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!