The half-life of Radium-226 is 1,600 years. If Madame Curie had a 1,000 gram sample in
1903, how many years will it take for only 62.5 grams to remain?

Answers

Answer 1

Answer:

ok

Step-by-step explanation:


Related Questions

A pair of parallel lines is cut by a transversal as shown below:
Which of the following best represents the relationship between angles m and n?

answer choices:
1. m = 180 degrees - n
2. n = 180 degrees - m
3. m = n
4. n = 2m

Answers

The answer is 3 because they would equal the same value.

Forgot to add attachment :'> ight 7th grade math 25 points each thank you

Answers

Answer:

Option A, -7 and -5. is the answer

What is 5 time 2 plus 3 to the power of 2

Answers

i believe it is 19 if im wrong sorry

(5x2)+3^2
Multiply five times two
10+3^2
Find 3 to the power of 2
10+9
Your final answer should be 19

Antonio has a circular table in his office. The diameter of the table measures 4 feet. The approximate circumference of the table is 12.56 feet. Which expression best represents the value of ?

Answers

Answer:

║∅║Hello person║∅║

Your answer should be:

The value of ? is 3.14. Which is simplified version of pi

Because 3.14 times 4 equal 12.56.

If you are looking for the radius, the radius is 2.

Step-by-step explanation:

First answer!

Brainliest would be very appreciated!

Have a great day!

The length of a rectangle is shown below:

On a coordinate grid from negative 6 to positive 6 on the x-axis and on the y-axis, two points A and B are shown. The point A is on ordered pair 1, 3, and the point B is on ordered pair negative 3, 3. A straight line joins the points A and B.

If the area of the rectangle to be drawn is 20 square units, where should points C and D be located, if they lie vertically below the line that connects B and A, to make this rectangle?

C(−3, −2), D(1, −2)
C(−3, −1), D(1, −1)
C(−3, −7), D(1, −7)
C(−3, −5), D(1, −5)

Answers

Answer: It would be C(-3 -1) D(1 -1). (Aka the second one)

Step-by-step explanation:

The top of A and B is 4 units. If you count down five units vertically you get to -3, -1 and 1, -1. You need to count down 5 units because its asking you to get 20. So 5 x 4 = 20.

Answer:

the second one

Step-by-step explanation: coodinate grid helps

HELP ME PLS AND HURRY PLS MY DAD IS ALMOST HOME HURRY

What is the best estimate for 714 ÷ 73?

Write the compatible numbers you used for both the dividend and the divisor as well as the estimated quotient for full credit.

(also tell me how to write the equation pls)

Answers

Answer: 714/73= 10 or 9.78

Step-by-step explanation:

What is 179,599 rounded to the nearest thousand?

Answers

Answer:

180,000

Step-by-step explanation:

Answer:

180,000

Step-by-step explanation:

the number closest to the 9,000 in 179,599 is five, therefore we have to round up. remember: if the closest number is 1,2,3,or 4, you keep the number and change the other place values behind to 0. example: round 230 to the closest hundred 230 ---> 200. If closest number is 5,6,7,8,or 9, round up. example: round 3576 to the closest ten 3576 ----> 3580. so try it with the original prompt: What is 179,599 rounded to the nearest thousand? 179,599    ---> 180,000

Hope This Helped You!!

I need help with math please explain there are 2 pictures :)

Answers

I think the answer for the first one is C

And for the second one it is D
First is c second is d

3 3/5x(-8 1/3)=?
What is ?

Answers

Answer:

-30x

Step-by-step explanation:

Answer:

about -29.988

Step-by-step explanation:

3 3/5x(-8 1/3)= -29.988

is 7.7878878888.. a rational number
A.yes it has a pattern which is repeated
B.Yes it has a pattern which is terminating
C.No it has a pattern which is predictable but nonrepeating
D.no it has a pattern which is random and nonterminating​

Answers

Answer:

C

Step-by-step explanation:

I just did this on odyssey ware

Answer:

C

Step-by-step explanation:

If your look at the numbers you can see it adds an 8 each time. But it does not repeat the same numbers in the same order.

In your own words, what is the difference between an equation and an expression?

Answers

Answer:

An expression doesn't have an defiant answer. While an equation does.

Yes, you can copy and paste saying its your own words.

Hope this helps! <3

The difference between a Equation and expression is that a Equation has a equal sign( = ) while a expression does not.

Sylvia launches a bottle rocket into the air. The function h(t)= 115t-16t^2 gives the height of the bottle rocket, in feet, seconds after it is launched. Using a table or graph, about how many seconds did it take for the bottle rocket to reach a height of 200 feet? Round your answer to the nearest second.

Answers

Answer:

4 seconds to reach 200 feet

Step-by-step explanation:

You can use Desmos (graphing calculator) then plug in the equation and you will find the x-values are 7.188 and 0- the origin.

Divide 7.188 by 2 (this is also solving for the midpoint/axis of symmetry) and you get 3.594

Round 3.594 to the nearest second which would be 4 seconds.

Hope that helps and have a great day!

A cup is 16fl oz, you want to fill it to 12fl oz, which is 3/4 of the cup. What is the other percentage of water if you already filled 12.5% of 12fl oz?

Answers

Whoever worded this question made it confusing, 87.5%?
It definitely 87.5% guy, good luck

Match the graph to its equation.

Answers

Answer:

[tex]y=(\frac{1}{4} )^x[/tex] = Option 1

[tex]y=(\frac{1}{2} )^x[/tex] = Option 2

[tex]y=2^x[/tex] = Option 4

[tex]y=4^x[/tex] = Option 3

Which pair shows equivalent expressions?

Answers

Which pair shows equivalent expressions?

A.2(2/5x + 2)=2 2/5x + 1

B.2(2/5x + 2)=4/5x + 4

C.2(2/5x + 4)=4/5x + 2

D.2(2/5x + 4)=2 2/5x + 8

Solution:

Let us distribute 2 inside the parenthesis.

That is, we use distributive property:

a(b+c)=ab+ac

So,

Answer:Option (b)

Applying distributive property, a(b+c)=ab+ac

So, Option (B) is correct.

Answer:

B

Step-by-step explanation:

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A wheel has a diameter of 16 inches. How far will the wheel travel after 5 rotations? Use 3.14 to approximate pi. Round your answer to the nearest tenth.

Answers

Answer:

251.2 inches

Step-by-step explanation:

C=2πr

C=2x3.14x8

C=50.24

50.24x5=251.2

Answer:

║Ф║Hello wonderful Person!║Ф║Your answer should be: 251.2

251.2 is already rounded to the nearest tenth to so need to round.

Step-by-step explanation:

Δ I hope this helped you! Δ

(Brainliest would be appreciated!)

←≡≡First Answer!≡≡→

║H∀ve α wonderful dΔy!║

Raj plotted point L in the coordinate plane below.


On a coordinate plane, point L is 1.5 units to the left and 4 units up.


He says that the plotted point is (4, negative 1.5). What is Raj’s error?

The x-coordinate should be -4.

The y-coordinate should be 1.5.

The x- and y-coordinates are switched.

Both coordinates should be positive.

Answers

Answer:

The x and y coordinates are switched.

Answer:

Coordinates are switched.

Step-by-step explanation:

hope this helps

Is it possible to draw a triangle with all equal sides and unequal angles?
If yes, Justify with the help of a diagram.

Answers

No, the triangle with all equal sides and equal angled is the equilateral triangle

Solve for t: 3t + 4 = -4

Answers

here youuuu gooo hope this helpsss

Answer:

t = - 8/3

Step-by-step explanation:

3t = -4 -4 : Separate the constants and variables

3t= -8 : Add the numbers

3t/3 = -8/3 : Divide both sides by 3

t = -8/3: Simplify

Hope that helps

Solve for s: -2s < 6

Answers

Answer:

s > -3

Step-by-step explanation:

-2s < 6

Divide both sides of the inequality by -2. Remember that when you multiply or divide both sides of an inequality by a negative number, the inequality sign changes direction.

[tex]\dfrac{-2s}{-2} > \dfrac{6}{-2}[/tex]

s > -3

Answer: s > -3

The coordinates of point P are =????

Answers

Answer:

(1.5, 3.5)

Step-by-step explanation:

We can see that P's x coordinate is 1.5 and P's y coordinate is 3.5.

Answer:

p=(1.5,3.5)................

-6-t/4 =-1 Please solve for t
10 points

Answers

-6 - t/4 = -1

+6          +6

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

-t/4    =   5

x -4          x -4

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

t   =  -20

Hope this helped! :D

What is the Volume of the Triangular Prism?

A. 32 cm sq
B. 1440 cm sq
C. 28 cm sq
D. 720 cm sq

Answers

Answer:

I think its D

Step-by-step explanation:

Answer:

1440 cm sq

Step-by-step

times 12 x 8x 15= 1440

help me pls, thank you so much

Answers

Answer:

$52.68

Step-by-step explanation:

Tennis Rackets = r

Tennis balls = b

r = 0.85(43) because 100%-15% = 0.85.

b = 4(3) because you are buying 3 cans of tennis balls.

r = 36.55, b = 12

total cost = 8.5%(48.55) + 48.55

t = 0.085(48.55) + 48.55

t = 4.13 + 48.55 = 52.68

Tennis rack is from 43 now on sale for $36.55 and can of tennis balls $4 so total is $40.55 plus sale tax of 8.5 percent which is $3.45 so total $44

S

Please help me with this

Answers

Answer:

4 3/4

Step-by-step explanation:

4 3/4 is the correct answer

is (3,8) part of the system? yes or no

Answers

Answer:

no

Step-by-step explanation:

no

short explanation: no

(4y+8) ÷6-12

plz answer it i need help

Answers

Answer: -10 If that´s an option may I please have brainlest god bless you all.

Step-by-step explanation:

2y -32/3 I’m not really sure

How do you predict alternate exterior, interior, corresponding, same-side interior angles will be important for future math topics?


Has to be 3 or more sentences

Answers

Answer:

One of corresponding angles is always interior (in between parallel lines) and another - exterior (outside of the area in between parallel lines). Two acute angles a and c' , formed by different parallel lines when intersected by a transversal, lying on the opposite sides from a transversal, are called alternate.

I agree with W !!!!!!

A bakery has three types of pie: apple, cherry, and peach. There are four times as many apple pies as peach pies. What is a possible percentage for each type of pie? Fill in the table and explain or show your work below. (Hint: There are multiple correct answers for this problem)

Answers

Answer:

The purpose of this task is to help students see the connection between a÷b and ab in a particular concrete example. The relationship between the division problem 3÷8 and the fraction 38 is actually very subtle.

3÷8 is the number you multiply 8 by to get 3.

38 is the number you get by taking 3 copies of the unit fraction 18.

So 3÷8 is defined in terms of multiplication, and 38 is defined in terms of unit fractions. It is not obvious that these two numbers are the same, so students need opportunities to see that they will necessarily always be the same. Note that if b people share a pies equally, then each person will get ab of a pie by the same kind of reasoning shown in the solution below.

This task is probably best suited for instruction or formative assessment.

Step-by-step explanation:

38 is the digit you gain by taking 3 copies of the division fraction 18. When the fraction 38 is extremely unpretentious.

What is a Fraction?

The objective of this task is to assist students to see the association between a÷b and ab in a special factual illustration.

The relationship between the division issue 3÷8 and the fraction 38 is very quiet.

3÷8 is the digit you reproduce 8 by to reach 3.

38 is the digit you get by assuming 3 copies of the unit fraction 18.

So 3÷8 is described in words of multiplication, and 38 is described in terms of unit fractions.

It is not pronounced that these two digits are the same, so students need possibilities to see that they will necessarily always be the same.

Note that: If b people share a pie equally, then each individual will get ab of a pie by the exact kind of logic shown in the resolution below.

Therefore, This task is probably best conformed for instruction or productive assessment.

Find more information about Fraction here:

https://brainly.com/question/7678465

A recipe calls for 1/3 cup of sugar for 1 batch. How many batches can be made with 2 cups of sugar?

Answers

Answer:

6 batches

Step-by-step explanation:

Six batches
So first you convert 2 to 6/3 and multiply by 1/3 then simplify down to two batches
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