A chemist has a 100 gram sample of a radioactive
material. He records the amount of radioactive material
every week for 6 weeks and obtains the data in the
table below.


look at the picture please <3 i really need this asap

A Chemist Has A 100 Gram Sample Of A Radioactivematerial. He Records The Amount Of Radioactive Materialevery

Answers

Answer 1

Answer:

75

Step-by-step explanation:

did it 5 mins ago


Related Questions

PLEASEEE HELP WORTH 30 AND WILL GIVE CROWN

Answers

C.....................

Answer:

1 and 5

Step-by-step explanation:

it is shown in the picture

What is the area of the trapezoid below

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Answer:

[tex]Area: 29 cm^{2}[/tex]

Step-by-step explanation:

[tex]Aear=(8.5+6)(\frac{4}{5} )[/tex]

[tex]Area=14.5 (2)[/tex]

[tex]Area=29[/tex]

----------------------

hope it helps...

have a great day!!

4x > 20 Is x=12 a solution?

yes or no

Answers

no

Hope this helps

:T

:B

:D

From what we have, x can equal 12

4x > 20

20/4 = 5

x > 5

12 > 5

Suri makes $15 per hour and gets a weekly bonus of $25. Juan makes $14 per hour and gets a weekly bonus of $50. Is it possible for Suri and Juan to make
the same amount of wages, y, by working the same number of hours, x, in one week?
O Yes, because the slopes of the equations are different so the system of equations will have one solution.
No, because the slopes of the equations are different so the system of equations will have no solutions.
O Yes, because the slopes of the equations are the same so the system of equations will have infinitely many solutions.
No, because the slopes of the equations are the same so the system of equations will have no solutions.

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Answer:

first option

They will make the same amount in week 25

Step-by-step explanation:

help me ;-;(with image)

Answers

Answer:

12

Step-by-step explanation:

A : B

1 : 3

Since we know that B is 3 times of A and A is 4...

1 unit = 4

3 units = 4 x 3 = 12

When you cut a cross-section of a three-dimensional shape, how many dimensions is the cross section? Explain.

Answers

every two-dimensional shape can be defined as a cross section of a three-dimensional shape.

Please help me find the surface area:)

Answers

Answer:

48 im 100 percent sure

Answer: 48 hope this helps!!

What is the median age for the following data set representing the ages of students requesting tickets for a summer band concert? Explain your reasoning. 13 14 15 15 16 16 17 18 18

Answers

Answer:

16 is the median

Step-by-step explanation:

By definition, the median is the mid value or the middle number of a given data set

Firstly, we have to arrange the numbers in ascending or descending order

What we have as the count of the numbers here is 9

So the middle number is the 5th term counting from either sides

As we can see, the fifth term here is the number 16

how to factor y^2+49

Answers

This expression is not factorable with rational numbers

HELP DUE IN 15 MINS!

x=??

Answers

Answer:

4 yuuuhhhgh I have been working

Answer:

x = 3

Step-by-step explanation:

WX is midsegment

WX = 1/2(TU + SV)7x + 10 = 1/2(16 + 46)7x + 10 = 317x = 21x = 3

What is the value of x in the figure below

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Answer:

just delete this

Step-by-step explanation:

1. Solve the compound inequality. You do not need to graph the solution.

Answers

Answer:

9 ≤ x ≤ 7

Step-by-step explanation:

2x – 3 ≤ 11 or –8x – 10 ≤ – 82

We shall determine the value of x in both case.

2x – 3 ≤ 11

Collect like terms

2x ≤ 11 + 3

2x ≤ 14

Divide both side by 2

x ≤ 14/2

x ≤ 7

–8x – 10 ≤ – 82

Collect like terms

–8x ≤ – 82 + 10

–8x ≤ – 72

Divide both side by –8

x ≤ – 72 / –8

x ≥ 9 (since we divided by a negative sign)

9 ≤ x

Combining both answers

x ≤ 7

9 ≤ x

Thus,

9 ≤ x ≤ 7

Two trains are traveling toward each other, on parallel tracks. Train A is moving at a constant speed of 70 miles per hour. Train B is moving at a constant speed of 50 miles per hour. The trains are initially 320 miles apart. How long will it take them to meet?

Answers

Ummm I don’t know what it is

On an island there are 7 cities each 2 of them connected by a direct road they are building a 8th city they also want it to connect with the other 7 existing cities how many roads will there be after they build the 8th city

Answers

Answer:

After the 8th city is built there will be 28 roads between the cities

Step-by-step explanation:

The given parameters are;

The number of cities initially on the island = 7 cities

The number of roads between each 2 cities = 1 road

Therefore, we have the number of roads between the 7 cities are;

7 cities taking 2 at a time = ₇C₂

[tex]_7C_2 = \dfrac{7!}{(7 - 2)!\cdot 2!} = 21[/tex]

The initial number of roads between the 7 cities = 21 roads

The number of roads, 'n' there will be after the 8th city is built is therefore;

[tex]n = _8C_2 = \dfrac{8!}{(8 - 2)!\cdot 2!} = 28[/tex]

The number of roads there will be after the 8th city is built, n = 28 roads.

Choose the symbol that correctly compares the fractions below.
8/9 ? 1/9

Answers

Answer:

Which means that this equation is also true: 8/9 > 1/9

Step-by-step explanation:

Is 8/9 less than 1/9? Is 8/9 smaller than 1/9? These are the same questions with one answer.

To get the answer, we first convert each fraction into decimal numbers. We do this by dividing the numerator by the denominator for each fraction as illustrated below:

8/9 = 0.889

1/9 = 0.111

Then, we compare the two decimal numbers to get the answer.

0.889 is not less than 0.111.

Therefore, 8/9 is not less than 1/9 and the answer to the question "Is 8/9 less than 1/9?" is no.

helpppppp at least before 1

Answers

Answer:

5. 1st,3rd and last answer

Step-by-step explanation:

Anitra has 12 hair ribbons. One fourth of the ribbons are pink. Three are purple, and the rest are red. What fraction of Anitra's hair ribbons is red?

Answers

Pink ribbons are 3 ( 12:4)
3 pink + 3 purple =6 (together)
12-6 = 6(red)
Fraction is 6/12 simplify 1/2 the answer is one half (1/2)

The fraction of Anitra's hair ribbons is red is 1/2.

What is the fraction?

In Mathematics, fractions are represented as a numerical value, which defines a part of a whole. A fraction can be a portion or section of any quantity out of a whole, where the whole can be any number, a specific value, or a thing.

Given that, Anitra has 12 hair ribbons.

One fourth of the ribbons are pink.

So, number of pink ribbons = 1/4 ×12

= 3

Three are purple, and the rest are red.

So, number of red ribbons

= 12-3-3

= 6

Now, fraction = 6/12 = 1/2

Therefore, the fraction of Anitra's hair ribbons is red is 1/2.

To learn more about the fraction visit:

brainly.com/question/1301963.

#SPJ2

Mhanifa can you please help? I will mark brainliest!

Answers

Answer:

Property of kite used to solve this

Diagonals are perpendicularOne diagonal is an angle bisector (WY)

(20)

∠XYZ is double the ∠XYV∠XYV is complementary with ∠VXYm∠XYZ = 2(90° - 58°) = 64°

(21)

∠VZW is complementary with ∠VWZ and ∠VWZ is half of ∠ZWXm∠VZW = 90° - 50°/2 = 65°

(22)

∠ZWV is half of ∠ZWXm∠ZWV = 1/2*50° = 25°

(23)

m∠WZY = m∠VZW + m∠VZY = m∠VZW + m∠VXYm∠WZY = 65° + 58° = 123°

Please help I’ll mark brainliest

Answers

Answer:

y= x-3

Step-by-step explanation:

use the slope formula which is y= m(slope)x + b(y intercept)

The slope is one, so you can just leave it as x, and the y intercept is -3 so you can plus that into the b.

Hope this helps :)

Name an outcome that has a probability of 0.5​

Answers

Answer:

A coin toss

Step-by-step explanation:

if you flip one coin repeatedly like 10 to 10000 it can be 0.5

What is the probability that the dice shows a 2?​

Answers

Answer:

1/6

Step-by-step explanation:

the probability of rolling a 2 is 1/6

i know this is easy but can someone answer the following questions
Complete the following. Show all work for calculations. 25 points if answered correctly

List the dimensions of your box. Be sure to include the units (in, cm, ft, etc.).
Describe the shape of the cross section when the box is cut parallel to the base.
What is the surface area of the box?
What is the surface area of the box if it is scaled up by a factor of 10?
What is the volume of the box?
What is the volume of the box if it is scaled down by a factor of
1
10
?

Answers

Answer:

541/2 square

Step-by-step explanation:

What is the volume of the box if it is scaled down by a factor of 1/10

we know that

the volume of the smaller box=[scale factor]³*volume original box

scale factor=1/10

volume original box=5,120 cm³

so

volume of the smaller box=[1/10]³*5,120-----> 5.12 cm³

the answer part 6) is

5.12 cm³

Use the long division method to find the result when 4x^3+23x^2 + 21x + 30 is
divided by x +5.

Answers

Answer:

A polynomial is an algebraic expression made up of two or more terms subtracted, added, or multiplied. A polynomial can contain coefficients, variables, exponents, constants, and operators such as addition and subtraction.

It is also important to note that, a polynomial can’t have fractional or negative exponents. Examples of polynomials are; 3y2 + 2x + 5, x3 + 2 x 2 − 9 x – 4, 10 x 3 + 5 x + y, 4x2 – 5x + 7) etc. Like number, polynomials can undergo addition, subtraction, multiplication, and division.

We saw addition, subtraction, multiplication, and long division of polynomials previously.

hope it helps make brainlliest ty

find the rate of change (slope) for the graph below ( simplify answer)​

Answers

The slope is -1 the equation is y=-1x+1

Use Quadratic Formula to solve Real Life Quadratic Equation Problem.

Kaylani is going to make a blanket by sewing a 4-foot long piece of ribbon along the diagonal of a piece of rectangular fabric. She wants the length of the blanket to be 18 inches longer than the width. What is the approximate perimeter of the blanket? Round to the nearest inch.

Answers

Answer:

Step-by-step explanation:

Use Quadratic Formula to solve Real Life Quadratic Equation Problem.

Kaylani is going to make a blanket by sewing a 4-foot long piece of ribbon along the diagonal of a piece of rectangular fabric. She wants the length of the blanket to be 18 inches longer than the width. What is the approximate perimeter of the blanket? Round to the nearest inch.

Which associations best describe the scatter plot?

Select each correct answer.

A. Nonlinear association

B. Negative association

C. Linear association

D. Positive association

Answers

Answer: i think hope this helps

Step-by-step explanation:

Mark me Brainliest!!!

I think it is negative association.

Hope this helps!

Volume? serious answers please.

Answers

282.6 ft^3
here you goooo <3

Find the circumference

Answers

Answer:

circumference:

2 × 3.14 × 5.8m = the circumference ** (use your calculator here, ill die if I in do this)

What is the slope and y-intercept of the following equation: 5x - 3y = 36

Answers

Answer:

y=5/3x-12

slope= 5/3

y-intercept= -12

Step-by-step explanation:

i hope this helps :)

Han has four shirts in his shirt drawer – a blue shirt, a grey shirt, a white shirt, and an orange shirt. He has three pairs of pants in his pants drawer – blue pants, khaki pants, and black pants. If Han chooses a shirt without looking and then chooses pants without looking, what is the probability that he will choose pants and a shirt that are the same color?

Answers

Answer:

1/12

Step-by-step explanation:

12 combinations are possible in this scenario. Shirts. Pants

blue 1 blue 2khaki 3black

grey 4 blue. 5khaki 6black

white 7 blue 8khaki 9black

orange 10blue 11khaki 12black

blue/blue are the only matching items so 1/12 chance

Answer:

1/12

Step-by-step explanation:

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