1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Fiesta28 [93]
3 years ago
14

The radioactive substance cesium-137 has a half-life of

Mathematics
1 answer:
statuscvo [17]3 years ago
7 0
A(t)=A0*(1/2)^(t/30)
where t=elapsed years
A0=initial mass at t=0.
You might be interested in
The solution to the division problem writtren as a mixed number is 10x426=4260
Angelina_Jolie [31]

Answer:

266 1/4th. I hope this helped, and I would appreciate it if you gave it a good rating. :)

Step-by-step explanation:

1,065 ÷ 4 = 266 and remainder = 1 =>

1,065 = 266 × 4 + 1 =

1,065/4 =

(266 × 4 + 1) / 4 =

266 + 1/4 =

266 1/4

5 0
3 years ago
» A biologist is studying the depths of plants growing near the surface of the ocean. He uses
jeyben [28]

Answer:

The pic is below :)

Step-by-step explanation:

5 0
3 years ago
Which of the following is an equation of a line parallel to 2x-y=-1?
Simora [160]

Although you didn't provide a list of options to choose from, I hope my explanation will help you  work this out with ease. :)

This equation is in a form known as "standard form." ax+by=c Standard form is commonly used, however for comparing slopes, there is a more efficient equation to use.

Point-slope form (y=mx+b) allows lines' slopes (y) and y-intercepts (b) to be quickly compared and contrasted. Let's put the equation into this form.

2x-y=-1

-2x      -2x

-y = -1 - 2x

*-1      *-1

y= 1 + 2x

Switch pieces around

y= 2x + 1

The slope is 2, the y intercept is 1.

<h2><u>Any line that rises 2 units up for every one unit right and that crosses over the vertical axis at any point other than 1 is your answer.</u></h2>

<u />

3 0
3 years ago
One serving of soybeans contains 14 grams of protein and 8 grams of fat. One serving of rice contains 4 grams of protein and 1/2
mina [271]

Answer: 1.8 servings of soybean and 1.2 servings rice will be needed.

Step-by-step explanation:

Let x be the number of soybeans and y be the number of rice.

Then , According to the question , we have

14x+4y=30\\\Rightarrow\ 7x+2y=15..................................(1)\\\\ 8x+\frac{1}{2}y = 15\\\Rightarrow\ 16x+y=30.............................(2)

Multiply 2 on both the sides of equation (2), we get

32x+2y=60................................(3)

Subtract equation (2) from equation (3), we get

25x=45\\\\\Rightarrow\ x=1.8

Put x = 1.8 in equation (2), we get

16x+y=30\\\\\Rightarrow\ y=30-16x\\=30-16(1.8)=1.2

Hence, 1.8 servings of soybean and 1.2 servings rice will be needed.

8 0
4 years ago
Help please!!!!!
Sergio [31]

Answer:

  • a. image 1

Step-by-step explanation:

<u>Given function:</u>

  • f(x) = 2*3ˣ

<u>Plot two points and check which graph has those:</u>

  • f(0) = 2*3⁰ = 2

and

  • f(1) = 2*3¹ = 6

Points (0, 2) and (1, 6) are correct on the image 1 with blue graph

7 0
3 years ago
Other questions:
  • Mike is 3 years old. Joe is 6 times as old as mike. how old is joe?
    15·2 answers
  • How do you do question 3?
    5·1 answer
  • I think it is A but I'm not sure..
    12·1 answer
  • Find the missing side of a triangle with leg length 10 yards and Hypotenuse 26 yards?
    12·1 answer
  • Help please, I really need help please
    12·1 answer
  • Attached is an assignment I am having trouble with I did problem 1 and 2 but I don't think it right can someone please look at i
    10·1 answer
  • HELP ME I NEED THE RIGHT ANSWER​
    5·1 answer
  • Do i solve this?? need help???
    8·1 answer
  • Determine whether y varies directly with x, if so find the constant of variation
    9·1 answer
  • Please help me with this
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!