1. It is the time needed for half of a substance to decay.??​

Answers

Answer 1

Answer:

The half-life (t1/2) is the time taken for the activity of a given amount of a radioactive substance to decay to half of its initial value.

P/S 1: Are you sure that your question is related to maths?

+ Bonus: The half-life can be calculated from the decay constant as follows: half-life = ln (2) / (decay constant).

P/S 2: Not sure which is right tho:( Really sorry about that.


Related Questions


If 4 out of 21 people prefer diet soda to regular soda, about how many regular sodas should be bought to serve 864 people, if each person
receives one soda?

Answers

~700 regular sodas to server 864 people

(the actual answer is 699.4285)

The number of regular sodas that should be bought will be 700 regular sodas.

If out of 21 people prefer diet soda to regular soda, then it means that 17 people prefer regular soda.

Since the number of people are 864 people, then the number of regular sodas that'll be bought will be:

= 17/21 × 864

= 699.42

= 700 Approximately

Therefore, the number of regular sodas that should be bought will be 700 regular sodas.

Read related link on:

https://brainly.com/question/21058142

equation.
1. h - 9= 2h - 1

Answers

H= -8. H-2h= 9-1; -h=8; h= -8
h-9=2h-1
Add 9 to both sides
h-9+9=2h-1+9
h=2h+8
Subtract 2h from both sides
h-2h=2h+8-2h
-h=8
Divide both sides by-1
-h/-1=8/-1
h=-8 is your answer

Find the value of x in the rhombus

Answers

Answer:

Your answer is.....

37

Mark it as brainlist answer . follow me for more answer.

Step-by-step explanation:

A light bulb consumes 3600 watt-hours per day. How many watt-hours does it consume in 4 days and 12 hours?
watt-hours
$

Answers

Answer/Step-by-step explanation:

18 hours = 18/24  reduces to 3/4 of a day

3/4 = 0.75

     so,........ 3600/3.75 = 960 watts per day

A $30 sweater is having a 20% discount. What should be the price of the sweater after the discount?

Answers

Answer:

$24

Step-by-step explanation:

$24

30 x .80 equals 24

Hope this helps!

Plz, Mark Brainliest!

Destiny just received two separate gifts from her great-great-grandmother.
The first gift is a box of 181818 chocolate candy bars, and the second gift is a pack of 121212 cookies.
Destiny wants to use all of the chocolate candy bars and cookies to make identical snack bags for her cousins.
What is the greatest number of snack bags that Destiny can make?

Answers

answer: 6 is the greatest number of snack bags that Destiny can make. Step-by-step

Step-by-step explanation:

The first gift is a box of 18 chocolate candy bars, and the second gift is a pack of 12 cookies.

Answer:

There are 6 snack bags that Destiny can make.

Step-by-step explanation:

Since we have given that

Number of chocolate candy bars in the first gift =18

Number of cookies in the second gift = 12

Since Destiny wants to use all of the chocolate candy bars and cookies to make identical snack bags for her cousins,

So, Destiny can make the greatest number of snack bags is given by

So, there are 6 snack bags that Destiny can make.

Which of the following is a pair of
vertical angles?
B
A
B
х
ООО
с
D
A. ZAXD and ZAXC
B. ZBXC and DXE
C. ZAXB and ZDXE
D. ZAXE and ZBXC

Answers

Answer:

B. <BXC and <DXE

Step-by-step explanation:

Vertical pair of angels are two opposite vertical angles formed when two traight lines intersect each other. They are of equal measure.

From the diagram, <BXC is vertically opposite to <DXE. Therefore they are a pair of vertical angles.

Classify each pair of numbered angles.

Drag and drop the descriptions into the boxes to correctly classify each pair of numbered angles. Each description may be used more than once.

Answers

Answer:

1 and 2 adjacent

5 and 6 are linear pair

Step-by-step explanation:

Show how to use the distributive property to simplify 4(5+x)

Answers

Step-by-step explanation:

4x5 + 4x

The 4 is distributed to the 5 and the 'x' in the bracket

Hope this helps

Hey there!

The Distributive Property states the following:

a(b+c)=ab+ac

Where

a, b, and c can be either variables or constants

Now that we know what the property states, let's simplify our expression:

4(5+x)

4 times 5 and 4 times x:

20+4x

Hence, the answer is

[tex]\boxed{\boxed{\bold{20+4x}}}[/tex]

Hope everything is clear,

Let me know if you have any other questions.

#LearningDoesn'tEnd

In a softball league, 4 coaches are needed for every 28 players. If 84 players sign up for softball, how many coaches are needed?

Answers

Answer:

12 coaches

Step-by-step explanation:

If for every 28 players, 4 coaches are needed, for 84 (triple the amount) players, 12 coaches would be needed (triple the amount)

Find the lateral area of a rectangluar prism with ?

Answers

Answer:

40 Squared units

Step-by-step explanation:

[tex]A=2*2*4+2*2*6=40[/tex]

a company declared a dividend of $1.50 per share. john has 600 shares in the company. how much will she get?​

Answers

Answer:

$900

Step-by-step explanation:

So if each individual share is $1.50 we can presume that we need to multiply both factors. 1 x 600 is 600 and .50 x 600 is 300. 600 + 300 = 900. John will get $900 in shares profit.

Sales tax is 7% How much tax will you have
to pay if you purchase a Microsoft - Xbox
One X 1TB Console for $495.99?

Answers

The answer is 34.72.
I hope this helped

Need help ASAP. Just solve what you can and make sure to tell me what is what.

100 POINTS

Answers

Answer:

9x3+5x2=37

8-(7-5)^2+8=12

10-3+5+5x4=32

ill solve rest in comments

9x3+5x2=37

8-(7-5)^2+8=12

10-3+5+5x4=32

is the ordered pair (1, -3) a solution to
3x + 5y = -8?

Answers

Answer:

Yes give Brainliest

Step-by-step explanation:

To find y place the other terms in the equation to the right

hand side of the equation.

Thus : 5y = 7 - 3x

( now divide both sides by 5 )

⇒ 5y5=7−3x5=15(7−3x)

now will you give brainliest?

Simply the expression by combining the like terms:
-6j + 4 + 2j - 1

Answers

Answer:

-4j + 3 or 3 - 4j

Step-by-step explanation:

you can combine the terms in any order that you want, but i'm going to begin with the j terms.

first, identify the like terms.

-6j + 4 + 2j - 1

then combine the like terms.

-6j + 2j = -4j

now identify the next set of like terms.

-6j + 4 + 2j - 1

combine those like terms.

4 - 1 = 3

after combining the first set of like terms, you're left with: -4j

after combining the second set of like terms, you're left with: 3

therefore the simplified expression is -4j + 3 or 3 - 4j. rearranging those terms doesn't change the answer, so it doesn't matter what order you write it in.

i hope this helps!! have a great rest of your day :)

Tez
Conclusions: Testing Trig Ratios
Does this ramp have an angle less than 4.8°?
Does it meet the ADA guidelines?
Triangle B
Yes
No
40
30

Answers

Answer:

ddjdjdjduduudduudppooo

Samuel brought a new bile for $350. Each year the value of the bike decreases by 12%. Find the value of the bike at the end of 5 years?

Answers

Answer:

$140

Step-by-step explanation:

HELP PLEASE!! thanks

Answers

Answer:

352

but for the 3 it would be 264

Look at the following figure. The mZCAB is 73° and mABC is 60
mZACB is
degrees.

Answers

Answer:

47 degrees

Step-by-step explanation:

180-73-60=47

The Sunny Days Apartment building has a cylindrical, above ground pool in the yard. The radius of the pool is 2 times its height, and the volume is 3000 cubic feet. How deep is the pool? In other words, what is the height of the pool?

Answers

9514 1404 393

Answer:

  6.2 ft

Step-by-step explanation:

The volume of a cylinder is given by ...

  V = πr²h

Here, we have r=2h and V=3000 ft³. Putting these numbers into the formula and solving for h, we get ...

  3000 ft³ = π(2h)²h

  (3000 ft³)/(4π) = h³ . . . . . divide by the coefficient of h³

  h = ∛(750/π) ft ≈ 6.2 ft

The pool is about 6.2 feet deep.

What are the prime numbers of 30

Answers

Answer:

2,3,5

Step-by-step explanation:

Answer:

2, 3 and 5 are the prime numbers

Step-by-step:

3(2X+3)+2(3X+2)=9X+4

Answers

The answer to this is -3

Answer:59

Step-by-step explanation:

Which one is the correct answer?

Answers

Answer:

3

Step-by-step explanation:

6 (3x+5)=6 (3x)+6 (5)

=18x+30

DISTRIBUTIVE LAW OF ADDITION

Answer:

#3

Step-by-step explanation:

6(3x+5) = 6(3x) + 6(5) = 18x +30

Can I have brainliest please..? hee hee

Identify the coefficients and constants in the expression. 2x – y + 5x

Answers

I believe the answer is 7x-y

−2.2⋅(−2)÷(−
4
1

)⋅5

Answers

Step-by-step explanation:

la respuesta no es correcta porque es falsa

Benito runs 1/10 of a mile each day. which shows how to find the number of days it will take for benito to run 3/5 of a mile

Answers

I would say  divide 3/5 by 1/10

Write as an expression and solve (show your work!).
One-fourth the difference between twenty-one and five

Answers

Answer:

4

Step-by-step explanation:

1 / 4 x (21 - 5) =

1/4 x 16 = 4

Hope that helps!

is y = -x3 + 4 linear or non linear

Answers

Answer:

It is a linear equation

9 points
7) What is the Unit Rate? $12.84 for 4 cookies. *
O $3.21
O $4.20
O $5.19
O $2.50

Answers

Answer:

$3.21

Step-by-step explanation:

Please let me know if you want me to write an explanation for my answer :)

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HELP!!! Need an idea! In this task, you'll assume the role of a theater critic. Write a theatrical review of act 1, scene 2 of the play A Streetcar Named Desire. Yourtheatrical review should include these elements:An introduction with name of play and playwrightBrief description and theme Description of climaxAnalysis of the 3 characters Could you please help me? Thank you! (3x3_10x=2x+20)=(x-3) solve the system of equations3x-3y=4-3x+3y=3 A population of 30 deer are introduced into a wildlife sanctuary. It is estimated that the sanctuary can sustain 600 deer. The population would grow by 30 percent per year What is tge appropriate vocabulary in Spanish? Voy a la _ a comprar rosas Pls helppppppppppppppppppppppppp 2. Ano ang iyong nararamdaman kapag nakatutulong ka sa iba? Ipaliwanag. The measure of angle 1 is (10x+8) and the measure of angle 3 is (12x-10)What is the measure of angle 2 in degrees?9988216 Tendinous inscriptions are the bands that run vertically across the rectus abdominus. true or false pls answer this it's kannada! 6) Mr. Collins finally decided to take this seriously and put both hands on the rope and applied a 500 N force to the left,while Jared and James still struggled with their 300 N force to the right. What is the net force and direction of motion? Plz help I dont know how to solve this please help w steps! asap In humans, normal color perception (N) dominates the expression of color blindness (n), and both of these genes are carried on the X chromosome (XN or Xn). A woman with normal color vision has a color-blind father. Her husband is also color-blind.a. What is the genotype of the colorblind man? ____b. What is the genotype of the woman? ______c. What is the probability of her daughter to be colorblind? __________%d. What is the probability of her sons to be colorblind? _________%WHO CAN HELP ME What is the volume of this cuboid? Remember to include the correct unit of measurement Define expressway For class 5 Marisol is selling snacks at her schools soccer games to raise money for a service project. She buys nuts in cases that contain 24 bags and granola bars in cases that contain 20 packages. She sells the nuts for $1.25 a bag and the granola bars for $1.75 a package. If she raised $160 and sold 112 items, how many cases of granola bars did Marisol buy? pls help!!!!!!!!!!!!!!!!!!!!!!!!!1 will give brainly!!!!!!!!!!!!!!!!!Soy bombera. ________ protejo a las familias.2. La chef es la seora Augusta. ________ cocina los viernes en mi casa.3. Buenas noches, seor. ________ contesta a la reportera?4. Buenos das, somos los abogados y yo. ________ ayudamos hoy a la seora Llorente.a. Yob. Ellac. Nosotrosd. Usted Evaluate the expression. 23(7)+23(5)32 (7)+ 32 (5)