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
Alchen [17]
3 years ago
12

Element X is a radioactive isotope such that every 11 years, its mass decreases by half.

Mathematics
1 answer:
Mkey [24]3 years ago
7 0

Answer:

27

Step-by-step explanation:

It would take about 25-27 years.

You might be interested in
A mixture of nuts has peanuts, almonds and cashews at the ratio of 4:3:2.
Juli2301 [7.4K]

Answer:

6

Step-by-step explanation:

Add 4 plus 3 plus 2. That equals 9. You need to double the amount to get 18. There would be 8 peanuts, 6 almonds, and 2 cashews. 8:6:4

4 0
3 years ago
What’s the answer of a multiplying polynomials (3x-1) to the second power and (x+6) to the second power
Vladimir [108]

9x^4+102x^3+253x^2-204x+36 is the result of multiplying (3x-1) to the second power and (x+6) to the second power

<h3><u>Solution:</u></h3>

Given that we have to find the result of multiplying polynomials (3x-1) to the second power and (x+6) to the second power

"Second power" means the term is raised to power of 2

Therefore,

We have to multiply (3x-1)^2 \text{ and }(x+6)^2

\rightarrow (3x-1)^2 \times (x+6)^2

We can use the algebraic identity to expand the above expression

(a+b)^2 = a^2+2ab+b^2\\\\(a-b)^2=a^2-2ab+b^2

Applying these in above expression, we get

\rightarrow ((3x)^2-2(3x)(1)+1^2) \times (x^2+2(x)(6)+6^2)\\\\\rightarrow (9x^2-6x+1) \times (x^2+12x+36)

Multiply each term in first bracket with each term in second bracket

\rightarrow 9x^2(x^2)+(9x^2)(12x)+(9x^2)(36)-6x(x^2)-6x(12x)-6x(36) + x^2+12x+36

Simplify the above expression

\rightarrow 9x^4+108x^3+324x^2-6x^3-72x^2-216x+x^2+12x+36

Combine the like terms

\rightarrow 9x^4+102x^3+253x^2-204x+36

Thus the above expression is the result of multiplying (3x-1) to the second power and (x+6) to the second power

4 0
3 years ago
What are the effects of different operations on rational and irrational numbers?
lara31 [8.8K]

Answer:

An irrational number is a number that is not rational that means it is a number that cannot be written in the form  

p

q

. An irrational Number is a number on the Real number line that cannot be written as the ratio of two integers. They cannot be expressed as terminating or repeating decimals. For example.

Pi = 3.14…..It continues forever and never repeats. The few digits of  this pattern look like 3.1415926535897932384626433832795

√3 = 1.732050807. So one of the most important thing about irrational numbers is that it never repeats and never terminates.

Step-by-step explanation:

6 0
3 years ago
What relationship exist between angle N and K if the given: KLMN is a parallelogram?
motikmotik
This two angles have the same degrees.  <span />
6 0
3 years ago
Read 2 more answers
Use the image provided to answer please​
Alborosie
B? I’m not quite sure but I think it’s that.
6 0
3 years ago
Other questions:
  • Can someone help me out
    13·1 answer
  • if a sample of 21 runners were taken from a population of 580 runners, could refer to the mean of how many runners' times? A. 21
    7·1 answer
  • A particle is moving with the given acceleration function and initial conditions. Find the velocity function and the position fu
    6·1 answer
  • The odds that you will pick a heart from a standard deck of 52 cards is 13:39.<br> True or False?
    9·2 answers
  • Suppose they decide to put fencing around both gardens,but not between the gardens.If b=10 how much fencing will they need?Justi
    8·1 answer
  • What is the measure of L?<br> A. 390<br> B. 25°<br> C. Cannot be determined<br> D. 32°
    15·1 answer
  • 30 people watched the soccer game last night tickets cost 2.75 each half of these fans bought a program at 1.50 each how much mo
    7·1 answer
  • I can't read the equation really well.
    6·1 answer
  • Given f(x) = lxl perform the given transformation on the function. Make sure to write out what the transformations are in words.
    6·1 answer
  • A pop can shown on the right has a diameter of 2.5 inches and a height of 5 inches. If necessary, round your answers to the near
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!