There was a sample of milligrams of a radioactive substance to start a study. Since then, the sample has decayed by each year.
Let be the number of years since the start of the study. Let be the mass of the sample in milligrams.
Write an exponential function showing the relationship between and .

Answers

Answer 1

Answer:

aaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Step-by-step explanation:

aaa


Related Questions

there are 20 students in chess club. two students are to be selected for representing the club in a school meeting. in how many ways can a pair of students be selected from the chess club?

Answers

first way is play a match between all of them and select first Palace and second to be selected in the meeting

Select the correct answer. .
Which number has a repeating decimal form?
A 15
B 11/25
C 3/20
D 2/6

Answers

Answer:

B

Step-by-step explanation:

I say B because 2 divided by 6 is .333333333 and so on and so forth.

Hope this helped!!

Helpppp!!!!
Work out the size of angle x.

Answers

answer is 118°

hope that helped

118 = x
360-295 = 65
180-65=115
115+127 = 242
360 - 242 = 118

A line is parallel to y = 3x + 5 and
intersects the point (-2, 6). What is
the equation of this parallel line?
Start by entering this into point-slope form.
y- [?] = [](x
](x-[]).

Answers

Answer:

Im not like 100% sure but i think you answer is

y-6=3[x-(-2)]

y=6+3x+6

y=3x+12

And i believe that this is parallel to y

Answer:

y = 3x + 12

Step-by-step explanation:

Parallel lines have same slope

Given line

y = 3x + 5

The line that passes through (-2, 6) and with the slope of 3 is:

y - y₁ = m(x - x₁)y - 6 = 3(x - (-2))y - 6 = 3(x + 2)

Convert the equation into slope-intercept form:

y - 6 = 3x + 6y = 3x + 6 + 6y = 3x + 12

What is the value of x2+9x+20 when x could be -5, -3 or -6

Answers

Answer:

Step-by-step explanation:

You should use a ^ to indicate an exponent. x^2 is the same as x².

x² + 9x + 20

Replace the x with (-5).

(-5)² + 9(-5) + 20 = 25-45+20 = 0

Then do the same with x = (-3):

(-3)² + 9(-3) + 20 = 9 - 27 + 20 = 2

You can do x = (-6)

2n^2 + 3n-1
find the 10th term

Answers

Answer:

229

Step-by-step explanation:

t10= 2×10^2+3×10-1

=2×100+30-1

=200+29

=229

Answer:

229

Step-by-step explanation:

[tex]2n^{2} + 3n -1\\[/tex]

[tex]2 (10^{2} ) + 3(10) -1[/tex]

[tex]200 + 29 = 229[/tex]

Cube of a binomial (a - b) ​

Answers

Answer:

(a - b)³ = a³ - 3a²b  + 3ab² - b³

Step-by-step explanation:

Cube of a binomial (a - b) ​

(a - b)³ = a³ - 3a²b  + 3ab² - b³

I need help with this math problem!! i'll give brainilist to the correct answer :)

Answers

Answer:

Blank 1: x

Blank 2: 1.5

Step-by-step explanation:

blank 1 xblank 2 1.5

#thanks for the points!

#Chloe919

#carry on learning

solve each system by substitution
y=-2x + 7
y = 3x - 13

Answers

Answer:

y = -1, x =4

Step-by-step explanation:

3x-`13=-2x+7

x = 4

y=3(4)-13

y = -1

check whether the given value is a solution to the equation. 3(y+8)=2y
- 6 y=30​

Answers

Answer:

y = 03

Step-by-step explanation:

3(y+8) = 30

3y+24=30

3y=06

y = 06/2

y = 03

2y - 6y = 30

-4y = 30

y = - 15/2

ANSWER ASAP!!! PLS HELP.
u can only use these for 15, 16 & 17:
acute equilateral ,
obtuse scalene , right scalene , acute isosceles

Answers

Step-by-step explanation:

15 . It is an acute equilateral triangle.

16. It is an obtuse scalene triangle.

17. It is right scalene triangle.

Hope it will help :)

square root of prime numbers from 1 to 20​

Answers

Answer:

maybe the answer is 16

because from 1 to 20, 16 is a number that have a square root.

Hope it helps!

The length of CD is 12 units. C'D' is the image of CD under a dilation with a scale factor of k.
Which of these are true? Choose all that are correct.

Answers

The length of CD is 24 units.

HELP GIVING BRAINLIEST !!!!!!!!!!!ejejwbhwge

Answers

Answer:

The third one. 12 1/2

Step-by-step explanation:

HOPE THIS HELPS!!

Answer:

12[tex]\frac{1}{2}[/tex]

Step-by-step explanation:

5=[tex]\frac{2}{5}[/tex]a

Multiply both sides by 5:

5(5)=5([tex]\frac{2}{5}[/tex]a)

25=2a

Divide both sides by 2:

[tex]\frac{25}{2}[/tex]=[tex]\frac{2a}{2}[/tex]

12[tex]\frac{1}{2}[/tex]=a

points Z(4,3) X(-5,-2) Y(4,-2) plot them and then find the perimeter and area

Answers

Answer:

z(43)x(−5−2)y(4−2)

=−602xyz

Step-by-step explanation: HOpe this help , pls mark me as brainlisti

Write the slope-intercept form of the equation of the line described.
through: (-4, -4), perpendicular to y= -4x-5
PLS SHOW WORK

Answers

Answer:

(4-4 = 0) - (4x5 =20) xDDddd

Answer:

[tex]y = \frac{1}{4} x - 3[/tex]

Step-by-step explanation:

Slope-intercept form:

y= mx +c, where m is the gradient and c is the y-intercept.

The product of the gradients of perpendicular lines is -1.

-4m= -1

m= -1 ÷(-4)

m= ¼

Substitute m= ¼ into the equation:

y= ¼x +c

To find the value of c, substitute a pair of coordinates.

y= ¼x +c

When x= -4, y= -4,

-4= ¼( -4) +c

-4= -1 +c

c= -4 +1

c= -3

Thus, the equation of the line is y= ¼x -3.

Basil was shown this enlargement, and he was asked to find the perimeter of the enlarged shape. His work is shown below.

Answers

The question is incomplete. The complete question is :

Basil was shown this enlargement, and he was asked to find the perimeter of the enlarged shape. His work is shown below.

Where, if any, did Basil first make a mistake in his work?

Solution :

Not -- Basil did not make any mistakes in his work. He found out the perimeter of an enlarged shape.

Perimeter is the total measure of the outer lining or the total outer length of the body or the shape. For different shapes, the perimeters will be different. Basil measure the outer length of the body and found out the perimeter.  

Answer:

C

Step-by-step explanation:

PLZ HELP IM TRASH AT MATH

Answers

Answer:

C should be the answer.

Step-by-step explanation:

Square root of 50 is equal is 7.071.

7.071 is right in between 7 and 8, making it the right answer for C.

Answer:

C??

Step-by-step explanation:

I mean if you put it in the calculator, then you get 7.07 so... lemme know if im wrong :D

i need help i have 5 minutes left of class i will give brainest if answer make sure to show poof

Answers

Answer for teardrop shape:

64.27

Step-by-Step Explanation:

I used the area calculators on Goggle

Answer for square:

5.7

Explanation:

The shape is a square, so all the sides are equal

5.7 + 6.8 = 12.5

x = 5.7

Answer for trapezoid:

76.95

Explanation:

Again, Goggle

Madeline is going to invest in an account paying an interest rate of 4.4% compounded
annually. How much would Madeline need to invest, to the nearest ten dollars, for
the value of the account to reach $16,600 in 12 years?

Answers

Answer:

$9540

Step-by-step explanation:

A = P(1 + r)^t

16600 = P(1.044)^12

P = 16600/(1.044)^12

P = $9,543.64

Fill in the blank:

I’m diamond, you know I glow up,
Hey, so let’s go
_______________

Answers

Answer:

cause imm in the stars tonight

Step-by-step explanation:

cause I I I'm in the Stars tonight

can you create a equation for this

Answers

Answer:

it's y = 2x

Step-by-step explanation:

░░░░░░░░░▄░░░░░░░░░░░░░░▄

░░░░░░░░▌▒█░░░░░░░░░░░▄▀▒▌

░░░░░░░░▌▒▒█░░░░░░░░▄▀▒▒▒▐

░░░░░░░▐▄▀▒▒▀▀▀▀▄▄▄▀▒▒▒▒▒▐

░░░░░▄▄▀▒░▒▒▒▒▒▒▒▒▒█▒▒▄█▒▐

░░░▄▀▒▒▒░░░▒▒▒░░░▒▒▒▀██▀▒▌

░░▐▒▒▒▄▄▒▒▒▒░░░▒▒▒▒▒▒▒▀▄▒▒▌

░░▌░░▌█▀▒▒▒▒▒▄▀█▄▒▒▒▒▒▒▒█▒▐

░▐░░░▒▒▒▒▒▒▒▒▌██▀▒▒░░░▒▒▒▀▄▌

░▌░▒▄██▄▒▒▒▒▒▒▒▒▒░░░░░░▒▒▒▒▌

▀▒▀▐▄█▄█▌▄░▀▒▒░░░░░░░░░░▒▒▒▐

▐▒▒▐▀▐▀▒░▄▄▒▄▒▒▒▒▒▒░▒░▒░▒▒▒▒▌

▐▒▒▒▀▀▄▄▒▒▒▄▒▒▒▒▒▒▒▒░▒░▒░▒▒▐

░▌▒▒▒▒▒▒▀▀▀▒▒▒▒▒▒░▒░▒░▒░▒▒▒▌

░▐▒▒▒▒▒▒▒▒▒▒▒▒▒▒░▒░▒░▒▒▄▒▒▐

░░▀▄▒▒▒▒▒▒▒▒▒▒▒░▒░▒░▒▄▒▒▒▒▌

░░░░▀▄▒▒▒▒▒▒▒▒▒▒▄▄▄▀▒▒▒▒▄▀

░░░░░░▀▄▄▄▄▄▄▀▀▀▒▒▒▒▒▄▄▀

Bettina bought 8 pairs of socks for $23.20. Nancy bought 10 pairs of socks for $30.00. Nancy says that she paid less per pairs of socks than Bettina. Is Nancy correct

Answers

Answer: yes, Nanay did´t buy more pairs of socks, she had bayed more. I hop that this is helpful.

What is the length of the hypotenuse with
the given vertex (-5,0)?
I

Answers

Answer:

5000 square ft

Step-by-step explanation:

What is the measurement of angle z PLSS HELP ASAP!!!

Answers

Answer:

77

Step-by-step explanation:

85-69=16

16/2=8

69+8=77

Answer:

z = 154°

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

z is an exterior angle of the triangle, then

z = 85° + 69° = 154°

A new car is purchased for 24600 dollars. The value of the car depreciates at 5.5% per year. To the nearest year, how long will it be until the value of the car is 11300 dollars?

Answers

Answer:

The number of years until the value of the car is 11300 dollars is 9 years.

Step-by-step explanation:

This can be calculated using the following formula:

Value of the Car = Purchase cost - (Annual depreciation expenses * N) ........ (1)

Where;

N = Number of years until the value of the car is 11300 dollars

Purchase cost = $24,600

Annual depreciation rate = 5.5%

Annual depreciation expenses = $24,600 * 5.5% = $1,353

Value of the car = $11,300

Substituting the value into equation (1) and solve for N, we have:

$11,300 = $24,000 - ($1,353 * N)

$1,353 * N = $24,000 - $11,300

$1,353 * N = $12,700

N = $12,700 / $1,353

N = 9.38654841093865

Rounding to the nearest year as required by the question, we have:

N = 9

Therefore, the number of years until the value of the car is 11300 dollars is 9 years.

Step-by-step explanation:

e) 6x-(3x+2)=1 how much is the x​

Answers

Answer:

1

Step-by-step explanation:

6x - ( 3x + 2) = 1

6x - 3x - 2 = 1

3x = 1 + 2

3x = 3

x = 3 / 3

x = 1

Hope it will help :)

Answer:

x=1

Step-by-step explanation:

Find the Difference.

3x + 5 - (2x + 2)

How do I do this step by step?

Answers

Answer: The correct answer is x+3

Step-by-step explanation: To find the answer you must first remove the parentheses then you combine the like terms and that how you get your answer.

Answer:

x + 3

Step-by-step explanation:

please help me!!!!!!!!111

Answers

The answer is A. Divide the amount of almonds by the servings. KFC (keep, change, flip) it, to get your answer. Hope it helps!

what is 7.25-6.17=? in subtracting decimals

Answers

Answer:

1.08

Step-by-step explanation:

Other Questions
can you please help me please Find the length of side x in simplest radical form with a rational adenominator. A weather foreshows 35 m/h on the weather map. Which weather component does this number represent Evalute b (caret) 2-5c b=15 and c =9 Wich example demonstrates fulfilling a citizenship responsibility rather than an obligation at the state level One bag contains black, red and green pearls in a ratio of 3: 2: 7 A random account is drawn from the bag. Exercise routine a P (red) What is the equation for y= and The high of the basketball after 1.7 second? Please explain your answer. Does any one know the answer Kelly filled up her 14 gallon gas tank for $29.26. What if the tank is 17 gallons, how much does she have to pay? What is the primary focus of evolutionary psychology?a. The universal patterns of behavior and cognitive processes that are different between humans and animalsb. The universal patterns of behavior and cognitive processes that stay the same over timeC. The universal patterns of behavior and cognitive processes that are similar between humans and animalsd. The ways in which universal patterns of behavior and cognitive processes have evolved over time 1. Find the length of FG.7cmB3cm9cmAEYour answer Where was the French and Indian War fought? Question 19 options: A) Great Britain B) France C) America D) Canada How can the rock transformation cycle transform rocks from one type to another? i need help ASAP please and thank you !!!!!!! A parabola can be drawn given a focus of (-10,1) and a directrix of x = -6. What can be said about the parabola? Felix used 1.64 meters of fabric to make a pair of pants. Alicia used 1.71 meters of fabric to make a skirt. Who used more fabric and how did you get the answer? a body is thrown at an angle 30to the horizontal with kinetic energy 40J.atbthe highest point of its motion the kinetic energy will be? Hi!!! I need help!!!!!! 5 - 3 x = 2 - 6 (X + 2) Jason drives 15 miles in 10 minutes. If he drove one hour in total at the same rate how far did he go