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
ziro4ka [17]
3 years ago
6

Element X is a radioactive isotope such that every 81 years, its mass decreases by half. Given that the initial mass of a sample

of Element X is 1800 grams, how much of the element would remain after 28 years, to the nearest whole number?
Mathematics
1 answer:
Ksenya-84 [330]3 years ago
3 0

Answer:

1426

Step-by-step explanation:

this question has been asked before and answered incorrectly but people corrected them in the comments.

You might be interested in
The volume of a box is given by V = 2x3-11x2 +10x +8. One side is (x - 4) and another side is (2x + 1).
user100 [1]

Answer:

The length of the third side is ( x - 2 )

Step-by-step explanation:

Volume of a box is the product of its length, width and height.

Volume of box = length × width × height.

One side is (x - 4) and another side is (2x + 1).

These given sides can be either length, height or width.

The volume of a box is given by V = 2x3-11x2 +10x +8. This means each of the sides are factors of the volume. To get the third side, we divide the volume by the product of the two given sides.

Product of the two given sides =

( x-4 ) (2x + 1) = 2x^2 + x - 8x + 4

= 2x^2 - 7x - 4

The long division is shown on the attached photo

The length of the third side is ( x - 2 )

4 0
3 years ago
Read 2 more answers
Solve the following equations <br> 5^2x-2(5^x)-15=0
castortr0y [4]

Answer:

x = 1

Step-by-step explanation:

{5}^{2x}  - 2( {5}^{x} ) - 15 = 0

( {5}^{x}  {)}^{2}  - 2 \times  {5}^{x}  - 15 = 0

{t}^{2}  - 2t - 15 = 0

{5}^{x} t =  - 3 \:  \: .5

{5}^{x}  = 5

x = 1

5 0
3 years ago
Please help me Will mark brainiest
astraxan [27]
For the volume of triangular prism, volume = 0.5xaxbxc
=0.5x10x7x6
=210cm^3
4 0
3 years ago
Read 2 more answers
Pls help ASAP I need help
bogdanovich [222]

Answer:

I believe your answer is D

sorry if im wrong

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Jane gets paid $120 for 8 hours. How much does she get paid an hour?​
AleksAgata [21]

Answer:

$15 an hour

Step-by-step explanation:

To find this, we divide 120 by 8.

120 ÷ 8 = 15

So Jane gets $15 an hour

I hope this helped, please mark Brainliest, thank you!

8 0
3 years ago
Other questions:
  • Please answer and explain why.
    7·1 answer
  • How much coffee costing $4 a pound should be mixed with 3 pounds of coffee costing 4.50 a pound to obtain a mixture costing $4.3
    14·1 answer
  • B.
    8·1 answer
  • Determine whether each function is even, odd, or neither.g(x) = |x-3| g(x) = x + x
    7·1 answer
  • Complete the equivalent ratio. How many ounces are in 2 cups?
    7·1 answer
  • What are three ways to write the number 24? Please help!!!!!!
    14·1 answer
  • Write a rule to describe each transformation
    7·1 answer
  • Which statement is true? asap thx reeeeeeeeeeeeeeeeeeeeee
    12·2 answers
  • Need help on this problem can you help me pls?
    13·1 answer
  • Which ratio is equivalent to 10:22<br> 2:8<br> 3:15<br> 5:1<br> 9:3
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!