A radioactive isotope decays at the rate indicated by the exponential function A (t) =800 (1/2) ^ t/1500, where “t” is the time in years and A(t) is the amount of the isotope, in grams, remaining what is the initial mass of the isotope?
A. 200 grams
B. 900 grams
C. 800 grams
D. 400 grams

Answers

Answer 1
The answer is A 200 grams

Related Questions

Can someone help me with this I’m confused?

Answers

the answer is 2/6, but you can reduce it by 1/2 which is 1/3

In the expression 4ab + 5a
- 3c, what is the coefficient of the term 4ab ?

Answers

Answer:

4

Step-by-step explanation:

coefficients are the numbers in a term, and the letter is called constant

Answer:

4

Step-by-step explanation:

The numeric value of the term is called the coefficient of the term.

Gabriella bought 8 chicken wings for $4. What was the cost of the wings in wings per dollar?

Answers

Answer:

2 wings/dollar

Step-by-step explanation:

The unit cost is $4 / 8 wings, or $0.50/wing.  This is equivalent to 2 wings/dollar.

the base of a triangle is five less than twice it’s height, if the area of the triangle is 6 cm^2, find the length of the base

Answers

Answer:

Base = 3 cm

Step-by-step explanation:

Area of a triangle =  [tex]\frac{1}{2} bh[/tex]

Let h = height

base =  2 times the height - 5; b = 2h-5

Area = 6 cm²

 A = [tex]\frac{1}{2}bh[/tex]

[tex]6 =\frac{1}{2}(2h - 5)(h)[/tex]             Multiply 2h(h) -5(h)

[tex]6 (2) = 2(\frac{1}{2})(2h^{2} - 5h[/tex]      Multiply both sides by 2 to remove the fraction

 12 = 2h²- 5h

2h ² -  5h  - 12 = 0                Set the equation = 0 and factor  

(2h + 3)(h - 4) = 0

2h + 3 = 0    or h - 4 = 0

2h = -3               h = 4

h = -3/2        or   h = 4        Answer can not be negative so h = 4cm

The base is 2(4) - 5; The base = 8 - 5; base = 3 cm

help pls <_> my sister needs it

Answers

Answer:

1. 2025

2. 737

3. 1365

4. 866

5. 923

6. 1662

7. 2013

8. 1562

9. 2400

Step-by-step explanation:

These are the answer

what equation is equal to 2x+3y=12

Answers

Answer:

y=-2/3x+4

Step-by-step explanation:

2x+3y=12 --- rewrite so it looks like y=mx+b

3y=-2x+12

y=-2/3x+4

I put the question in a doc cuz its a screenshot, please help

Answers

Answer:

53 po ang tamang sagot po

PLEASE HELP THIS IS DUE TOMORROW

Answers

Answer:

Step-by-step explanation:

A rock has a mass of 126 grams and a density
of 1.8 grams/cm.
Work out the volume of the rock.


Answers

Answer: 70 grams^3

Step-by-step explanation: volume = mass/density                                             volume = 126/1.8                                                                                                       volume = 70 grams^3

The value of the volume of the rock will be;

⇒ Volume = 70 cm³

What is Division method?

Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications. For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.

Given that;

The mass of rock = 126 grams

The density of rock = 1.8 grams/cm

Now,

Since, We know that;

⇒ Volume = Mass / Density

Here, The mass of rock = 126 grams

The density of rock = 1.8 grams/cm³

Substitute all the values we get;

⇒ Volume = Mass / Density

⇒ Volume = 126 / 1.8

⇒ Volume = 70 cm³

Thus, The value of the volume of the rock will be;

⇒ Volume = 70 cm³

Learn more about the divide visit:

https://brainly.com/question/315081

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Mrs. Rashad Is baking 3 ples, She needs 1 /6 cups of strawberries for each ple. How many cups of strawberries does she need in all?

Answers

Answer: 3/6 or 1/2

Step-by-step explanation: 1/6 x 3 = 3/6 or simplified form 1/2.

Answer:

1/2 cups of strawberries is required.

Step-by-step explanation:

1 pie = 1/6 cups of strawberries

=> 3 pies = 1/6 x 3

=> 3 pies = 1/2 cups of strawberries.

Hoped this helped.

5p + 3 = 15
please convert this into a WORD PROBLEM​

Answers

Answer:

What is the value of p if 5p+3=15

Answer:

When the product of 5 number and a number is added to 3 result is 15. Find the number.

Carey creates the table below to help him determine 75% of 36.


75% of 36
25%
25%
25%
25%
One-fourth
One-fourth
One-fourth
One-fourth
9
9
9
9

He writes the expression (three-fourths) (27). Which change in Carey’s expression will lead him to the correct answer?

Answers

Answer:

27 is the answer

Step-by-step explanation:

36/.75=27

The distance from the Earth to the moon is approximately 238,900 miles. What is the value of 8 in this number?

Answers

8000                                                    hope it helps :) :)                                                

Answer:

8000

Step-by-step explanation:

how can you solve this (3/4 - 1/5)

Answers

Answer:

11/20

Step-by-step explanation:

(Will give BRAINLIST to best answer)
Angle QRS is a straight line. The measure of angle 2 is 60 degrees more than the measure of angle 1

Answers

Answer:

Angle 2 = 120 degrees, Angle 1 = 60 degrees

Step-by-step explanation:

Since a straight angle is 180 degrees, you have to add up the 2 angles to 180.

x+x+60=180

2x+60=180

2x=120

x=60

Angle 1 = 60

Angle 2 = 60+60=120


Is x+y=10 linear or non

Answers

Answer:

Not

Step-by-step explanation:

In this case, the degree of variable y is 1 , the degrees of the variables in the equation violate the linear equation definition, which means that the equation is not a linear equation.

someone pls help me with this test i was in quorintine and missed a lot and the teacher is still making me take it.
i can only put 5 questions here out of 12

Answers

In first question x=8, I’m too lazy to solve the rest

Kate, Alexia, and Trina just completed the 400-meter dash at the track meet. Kate finished the race 6 seconds faster than Alexia, while Trina finished the race 3 seconds faster than Kate. If their combined time was 2 minutes and 39 seconds, find each girl’s individual time.

Answers

Answer:

Kate = 52 seconds, Alexia = 58 seconds, Trina = 49 seconds

Step-by-step explanation:

A = K + 6

T = K - 3

K + A + T = 2 min 39 sec or 159 sec

K + (K + 6) + (K - 3) = 159sec

3K + 3 = 159sec

3K = 156sec

K = 52 sec

A = 52 + 6 = 58 sec

T = 52 - 3 = 49 sec

Rudolph will spend $150 on tickets to the Reindeer Games. Reserved seat tickets cost $25 and general admission
tickets cost $10. Write an equation that describes the number of tickets Rudolph can buy_How many tickets can
Rudolph buy if he buys only reserved seat tickets? Only general admission tickets?

Answers

The equation that describes the number of tickets Rudolph can buy will be 25r + 10g = 150.

Let the reserved tickets be represented by r.Let the general admission be represented by g.

Therefore, the equation will be 25r + 10g = 150.

The number of tickets that Rudolph can buy if he buys only reserved seat tickets will be:

= $150 / $25 = 6

The number of tickets that Rudolph can buy if he buys only general admission tickets will be:

= $150 / $10 = 15

Read related link on:

https://brainly.com/question/25787943

it takes minutes to do 7 math problems how long does it take to do 20 math problems

Answers

Answer:

can you please explain that a little more



NEED ANSWER ASAP PLEASE

Use the graph to answer the questions.

What is the price at which the supply and demand equalize (there will be no extra or shortage of product?)
a. $2
b. $8
c. $4
d. $6


What is the quantity at which the supply and demand of this product will equalize?

1. 400 units
2. 300 units
3. 600 units
4. 200 units

Answers

d. $6
2. 300
adding more cuz character limit

Last year, 120 students were sick at school. This year, 20% fewer students are sick. How many students are sick this year?​

Answers

Answer:

100

Step-by-step explanation:

Convert 32 feet per second to kilometers per hour. (Hint: There are 5280 feet in a mile, and one mile is 1.61 kilometers)​

Answers

Answer: 35.113

Hope this helps!

Solve for b. b+2/3=1 1/4 Enter your answer as a fraction in simplest form in the box.

Answers

Answer:

75/4

Step-by-step explanation:

b+2/3=11/4

3b+2/3=11/4

3b+2=11×3/4

3b=33-2/4

3b=33-8/4

3b=25/4

b=25×3/4

b=75/4

The solution of the linear equation b + 2/3 = 1 ¹/₄ will be 7 / 12.

What is the solution to the equation?

The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.

The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.

The equation is given below.

b + 2/3 = 1 ¹/₄

Convert the mixed fraction into a fraction number, then we have

b + 2/3 = 5/4

Simplify the equation, then we have

b = 5/4 - 2/3

b = 7/12

The solution of the equation b + 2/3 = 1 ¹/₄ will be 7 / 12.

More about the solution of the equation link is given below.

https://brainly.com/question/545403

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You want to buy a new macbook. Apple will finance the macbook with no money down and no interest if paid in full within 2 years. The minimum monthly payment is $35 per month. If the macbook costs $1,799 and you only make the minimum payment, how much will you have to pay at the end to avoid paying interest?

Answers

Answer:

31482.5

Step-by-step explanation:

multipliy 1,799 by 35= 62965 the divide by 2.

Two mechanics worked on a car. The first mechanic charged $55 per hour, and the second mechanic charged $60 per hour. The mechanics worked for a combined total of 20 hours, and together they charged a total of $1125. How long did each mechanic work?

Answers

Answer:

15 and 5 hours.

Step-by-step explanation:

Call x the time taken by the first chap, and y the second.

[tex]\left \{ {{x+y = 20 \atop {55x+60y=1125}} \right.[/tex]

Let's divide by 5 and play with the LHS of the first equation a bit:

[tex]11x+ 11y +y = 225\\11(x+y)+y= 225[/tex] we know how much x+y is ( first equation!) let's solve.

[tex]11(20) +y = 225 \rightarrow y=5[/tex] At this point it's easy to check that [tex]x=15[/tex]

use the long division method to divide 120÷24​

Answers

Step-by-step explanation:

120÷24

    

    0   24⟌120

    0   24⟌120   0  

    0   24⟌120   -0      1

    00  24⟌120   -0      12 

   0   24⟌120   -0      12 

    00  24⟌120   -0      12    - 0     12 

   00  24⟌120   -0      12    - 0     120

I’m not sure since you can only come up with one digit

At time t = 0, water begins to drip out of a pipe into an empty bucket. After 77 minutes, there are 11 inches of water in the bucket. Write a linear function rule to model how many inches of water w are in the bucket after any number of minutes t.
The linear function rule is W =​

Answers

Answer:

  w = 1/7t

Step-by-step explanation:

Assuming the rate is constant, the function will be ...

  w = kt

We can find k using the given values:

  11 = k·77

  k = 11/77 = 1/7

The linear function rule is w = 1/7·t.

Solve the equation the square root of the quantity x plus 4 minus 3 equals 1 for the variable. Show each step of your solution process. (10 points) SOLVE FOR X

Answers

x + 4 - 3 = 1

x + 1 = 1

x = 0

Answer:

x = 8

Step-by-step explanation:

√x + 4 - 3 = 1

1) Move constant terms to the opposite side of the equation: √x + 4 = 1 + 3

2) Simplify the right side: √x + 4 = 4

3) Now square both sides to eliminate the square root: (√x + 4)^2 = 4^2 (x + 4) = 16

4) Move the constant term to the other side: x + 4 = 16 – 4

5) Simplify the right side: x + 4 = 12

6) Move constant side to the other side: x = 12 – 4

7) Finally, after simplifying the right side again, you get: x = 8

Therefore, the solution to the equation √(x + 4) - 3 = 1 is x = 8.

A bag contains three red marbles, three blue marbles, and three yellow marbles. You randomly pick three marbles without replacement. The first marble is red, the second marble is blue, and the third marble is red.

Answers

Answer:

first one is yellow

Step-by-step explanation:

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