a radioactive materal has a half- life of 60 months. How much of a 1000g sample would remain after 42 months?

Answers

Answer 1

Answer:

100

Step-by-step explanation:

100


Related Questions

Suppose that the path of a newly discovered comet could be modeled by using one branch of the equation x2/4 - y2/9=1, where distances are measured in astronomical units. Name the vertices of the hyperbola and then graph the hyperbola.

Answers

Answer:

the answer is A just tool the quiz lesson 5 hyperbolas Algebra 2B unit 5 these are the correct answers

1.A

2.B

3.D

4.A

5.B

6.D

7.A

hopes this helps everyone

The hyperbola has two vertices at (-2,0) and (2,0)

We have given that the equation

[tex]\frac{x^2}{4}-\frac{y^2}{9}=1[/tex]

What is the equation of the hyperbola?

[tex]\frac{x^{2} }{a^2}+\frac{y^2}{b^2} =1[/tex]

Compare the above equation of the hyperbola with given equation

therefore a=2

vertices are (-a,0) and (a,0)

Therefore the vertices are (-2,0) and (2,0)

See the graph of the hyperbola in link given below.

The hyperbola has two vertices at (-2,0) and (2,0)

To learn more about hyperbola visit:

https://brainly.com/question/2351925

which graph represents a function

Answers

Answer:

a

Step-by-step explanation:

Answer:

dfvgbhnm,kmjnhbgvx

Step-by-step explanation:

c vgbhjnmk,jnhbgvfc

This Question: 1 pt
20 of 20
This Qu
th
The pH of a fruit juice is 2.9. Find the hydronium ion concentration, [H30 * ), of the juice. Use the formula pH = -log[H30*]
The hydronium ion concentration [H30 + ] is approximately moles per liter.
(Use scientific notation. Use the multiplication symbol in the math palette as needed. Round to the nearest tenth as needed.)

Answers

Answer:

scientific" (and any subsequent words) was ignored because we limit queries to 32 words.

Your search - This Question: 1 pt 20 of 20 This Qu th The pH of a fruit juice is 2.9. Find the hydronium ion ... - did not match any documents.

Suggestions:

Make sure that all words are spelled correctly.

Try different keywords.

Try more general keywords.

Try fewer keywords.

how do this math problem?
of shaded region shapes

question 2)
find the area of each shape.
All measurements are in centimetres.

and please explain me to how to do this cuz I don't understand my teacher in maths​

Answers

Answer:

photo isn't clear, first of all u have to click clear picture

find the slope and y intercept form equation from the table ​

Answers

Answer:

y=x+5 or y=1x+5

Step-by-step explanation:

i hope this helps :)

8. A truck is carrying peach juice, pear juice,
and grape juice bottles in a ratio of 4:3:5. If
there are 76 peach juice bottles, then how many
pear juice bottles are there?

Answers

Answer:

57 pear juices

Step-by-step explanation:

because we know we have 76 peach juices and the ratio is 4, so we get 19.  This means that 19=x.  And then we multiply 19 by 3 and we get 57.  

Mhanifa Plz help me with this thank you!

Answers

Answer:

D

Step-by-step explanation:

This is an example of the Pythagorean theorem.

In triangle BEH, the sum of the squares of the sides of the two smaller sides, BE and BH is equal to the longest side squared, EH.

Rebecca wants to prove that if the diagonals in parallelogram are perpendicular, then it is a rhombus. Select the appropriate rephrased statement for Rebecca's proof

Answers

Answer:

The answer is C

Step-by-step explanation:

Khan Academy

Answer:

C

Step-by-step explanation:

What is the value of 4^3

Answers

Answer:

the answer is 64

Step-by-step explanation:

becasue 4 time 4 is 16 and 16 times 4 is 64. You have to multiply 4 against itself 3 times.

Answer:

64

Step-by-step explanation:

4³ = 4 · 4 · 4 = 64

Grade low in math help if you can :) Geometry

Lauren wants to build a model airplane using a scale where 2 inches represents 15 feet. If the airplane is 75 feet long, how long should the model be?
A.
5 inches
B.
7.5 inches
C.
10 inches
D.
15 inches

Answers

Answer:

C) 10 inches

Step-by-step explanation:

I think the simplest way to do this is as follows:

divide 75 by 15 to get how many times you need to multiply 2in by

75/15=5

since 15(5)=75 or the actual size of the airplane,

2(5)=10 which is the size of the model airplane

Some parents will drive 17 children to summer camp. Each parent can fit 4 children in a car.
What is the fewest number of parents needed to drive all the children?

Answers

Answer:

5

Step-by-step explanation:

SOMEBODY HELP ME PLEASE

Answers

Answer:

90

Step-by-step explanation:

9*6=54

54*5= 270

270/3=90

Suppose three moons A, B, and C orbit 100,000 kilometers above the surface of a planet. Suppose m ZABC = 90°, and the planet is 20,000 kilometers in diameter. Draw a diagram of the situation. How far is moon A from moon C?​

Answers

Answer:

Step-by-step explanation:

Please see diagram attached.

Moon A and C are 100,000km + 10,000 = 110,000km from center of planet.

So they are 110,000 + 110,000 = 220,000km apart.

Answer:

Step-by-step explanation:

AC is 220000km according to the drawing:

Last week at a gym, 120 people participated in a biking class. The number of people who ran on a treadmill
was 150% of the number of people who participated in a biking class. How many people ran
a treadmill at
the gym last week?
people ran on a treadmill at the gym last week.
Show work ~ Aniya v

Answers

Answer:

180

Step-by-step explanation:

This basically means that one and a half of the amount of people that took a biking class ran on the treadmill.

There are two ways to solve

1. [tex]\frac{150*120}{100}[/tex]

2. [tex]120+\frac{120\\}{2}[/tex]

To do the first one:

1. Multiply the values in the numerator

18000/100

2. Divide

180

To do the second one:

1. Divide the fraction

120 + 60

2. Add

180

Find the distance between the pair of points (6. - 22) and (1. - 23) The distance is​

Answers

I don’t know the answer to this bc I can’t remember

Rob is saving to buy a new MP3 player. For every $16 he earns babysitting, he saves $9. On Saturday, Rob earned $32 babysitting. How much money did he save?



If he earned $32, he saved $____

Answers

Answer:

18 dollars

Step-by-step explanation:

32÷16=2

9×2=18

Write the function in the form f(x) = (x − k)q(x) + r for the given value of k. F(x) = x3 − x2 − 18x + 19, k = 4 f(x) = Demonstrate that f(k) = r. F(4) =

Answers

Solution :

Given :

[tex]$f(x)=x^3-x^2-18x+19$[/tex]

By using the remainder theorem, if f(x) is divided by (x-k) and the remainder is 'r', then

[tex]$f(x)=(x-k)q(x)+r$[/tex]

Here, k = 4

Therefore, divide the f(x) with (x - 4) to find the q(x) and r.

           __________________

[tex]$x-4$[/tex]    |    [tex]$x^3-x^2-18x+19$[/tex]         |      [tex]$x^2+3x-6$[/tex]

            [tex]$x^3-4x^2$[/tex]

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

                    [tex]$3x^2-18x$[/tex]

                    [tex]$3x^2-12x$[/tex]

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

                          [tex]$-6x+19$[/tex]

                          [tex]$-6x+24$[/tex]

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

                                  [tex]$-5$[/tex]

Therefore,

q(x) =  [tex]$x^2+3x-6$[/tex]

  r = -5

[tex]$f(x)=(x-4)(x^2+3x-6)-5$[/tex]

[tex]$f(4)=(4-4)(4^2+3 \times 4-6)-5$[/tex]

       [tex]$=-5$[/tex]

What is the probability that someone in your class wants the New England Patriots to win

Answers

Answer:

Step-by-step explanation:

It all depends on how many people are in your class.

To calculate probability

Determine a single event with a single outcome.

Identify the total number of outcomes that can occur.

Divide the number of events by the number of possible outcomes.

To determine the probability, Use the formula

What is the formula of probability?

P(A) is the probability of an event “A” n(A) is the number of favourable outcomes. n(S) is the total number of events in the sample space.

P(A | B) = P(A∩B) / P(B)

Can someone please help me answer this question asap thank you . No links please and thank you .

Answers

It’s a 10 to 1 relationship

Cups by the water cooler are in the shape of a cone. The height is 15 cm and the diameter is 7.6 cm.

What is the volume of one water cooler cup, in cubic centimeters? (Use 3.14 for
π.)

Answers

Answer:

226.7 cm³

Step-by-step explanation:

The cone volume formula is V = (1/3)(base area)(height).

Here that comes out to V = (1/3)(pi)(3.8 cm)^2·15 cm, or 226.7 cm³

Which of the following is a proportion?

Answers

Answer:

the second one

Step-by-step explanation:

a baker made 192 trays of muffins. they were 14 muffins in each tray. how many muffins were there in all?

Answers

2,688 muffins
192 (trays) x 14 (muffins in each tray) = 2688 (total muffins)

HELP I MARK BRAIN thing

Answers

Answer:

It would be A. x < 6

Step-by-step explanation:

The number line shows it is less than six with a closed circle and the arrow pointing towards the left of it

solve the triangle give the measure of angle G

Answers

Answer:

G = 46 degrees

Step-by-step explanation:

Here, we want to find the measure of angle G

Mathematically, as we can see, what we have is a right triangle

For a right triangle , the sum of angles is 90 degrees

Thus, if we add the two internal angles, we get 90 degrees

Hence;

44 + G = 90

G = 90-44

G = 46 degrees

Helpppp I need this for rn thank youuuuu❤️

Answers

Answer:

-1,7

0,-3

1,-7

5,47

Step-by-step explanation:

-x-=+

7
-3
-13
-53

This should be right

Layla is going to invest $5,200 and leave it in an account for 15 years. Assuming the interest is compounded monthly, what interest rate, to the nearest tenth of a percent, would be required in order for Layla to end up with $13,800?

Answers

Answer:

6.5%

Step-by-step explanation:

I just know

find the arc length of the bolder arc
A) 283.5 mi
C) 733.0 mi
B) 10.2 mi
D) 73.3 mi

Answers

Answer:

d its d :)

Step-by-step explanation:

i already did that

32 is 4 more than twice a
number. What is the number?

Answers

Answer:

The number you are looking for is 14.

solve the system by substitution 3x-y=10 2x=y

Answers

Answer

X=10 and y=20

Step-by-step explanation:

since y=2x, you need to substitute that into the equation to get:

3x-(2x)=10

And evaluate:

x=10

Then substitute 10 into the equation: 2x=y:

2(10)=y

evaluate:

20=y

Now go back to the original equation to check your answer and substitute the values in:

3(10)-(20)=10

30-20=10

10=10

X=10, Y=20
steps
1) substitute 2x into the equation for Y
2) combine like terms ( 3x and -2x which equals 1x or x)
3) solve for x’s value (10)
4) plug in x’s value to solve for y
5) plug values into original equation to check work

A pioneer family travels for 30 hours at maximum speed in a covered wagon. Their neighbor walks 20 hours at a pace of 3 miles per hour. Which group traveled the greater distance?

Answers

If the covered wagon travels faster than a walking pace if 3mph the wagon will travel further.
Other Questions
how do this math problem?of shaded region shapesquestion 2)find the area of each shape.All measurements are in centimetres.and please explain me to how to do this cuz I don't understand my teacher in maths 3. According to Madison: (Select all that apply)a) Ultimately, we must have faith that government will be run by enlightened statesmen who put themselves above politics and seek the public good. b) Where there is no impartial judge to settle disputes the most powerful faction is likely to prevailc) Settling disputes must be done by the people themselves, not by government authorityd) Many important acts of legislation, including taxation, require an impartial judge.4. Why does Madison reject a pure democracy (a system where a small number of citizens assemble and administer the government in person)? (Select all that apply)a) It can control factions if they are a minority but not if they form the majority b) It doesnt protect the weaker party in disputes c) It cannot cure the mischiefs of factiond) It is always incompatible with the rights of property and personal security 5. According to Madison, the true interests of the country are best determined by:a) The election of a chosen body of citizensb) The people themslevesc) George Washingtond) By those committed to the protection of their property PLEASE HELP!! ....................... URGENT PLZ HELP!Where have you seen or known of examples of waves in YOUR LIFE? Based on science terms of a wave. The specific heat of nickel is 0.445 J/g degree Celsius. How much heat is required to heat a 168 gram piece of nickel from 15.2 degrees Celsius to 43.6 degrees Celsius? Guns dont kill people; people kill people. Write one sentence about an alternative/opposite opinion. I need help plz!!! Please help... What is the purpose of this 'encyclopedia entry' in 1932? In 1932 Mussolini wrote the entry below for the official Italian Encyclopedia Write out the algebraic expression given in each written expression.16 subtracted from the sum of 48 and bequals 129A ( 16 - b) + 48 = 129B (48 + b ) - 16 = 129C.16 - (48 + b ) = 129D 48 +(b - 16 ) = 129 Help me with this one please plz help me with this i am not good at language arts, it's just 9 questions and you can start reading the story at page 4 (the story is only 8 pages.) If AABC = APQR, thenAB =Help please HELP PLSS (NO LINKS) What was the role of boys and men? Today, many people would strongly disagree with the Nazis' decision to make gender the basis for extreme differences in schooling. What stereotypes about girls and boys did the Nazi program rely on? Describe the forces that are acting on a person who is standing still on a sidewalk, and identify whether the forces are balanced or unbalanced. Describe how the forces would change if the person started walking. A woman has one damaged fallopian tube. The damage completely blocks the opening of the tube at the ovary. How will this most likely affect her fertility?Her likelihood of conceiving will be reduced by at least 50%.Her eggs, if fertilized, will not implant properly.Her eggs will not mature inside the ovary.Her chances of conceiving twins will be doubled. el significado que tiene cada elemento de la bandera de Colombia What is the sentence structure? Because he needs to improve his grades,Joesph after-school tutoring, and he worked harder on his homework. Sara travels east 6 miles and then goes south 3 miles and then north 8 miles. What is her displacement? Roundyour answer to two significant figures.aOb6.3 miles SW7.8 miles SW0 miles5.7 miles SW7.8 miles NE6.3 miles NEodeOf5.7 miles NEOh9.1 miles sw9.1 miles NE In the app Kami, can the teacher see what time you edited the assginment. Like if i edit it at 3:00 pm, can they see what and how fast i typed?