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
Dafna11 [192]
2 years ago
6

Element X decays radioactively with a half life of 13 minutes. If there are 830 grams of Element X, how long, to the nearest ten

th of a minute, would it take the element to decay to 20 grams?
Mathematics
1 answer:
Nonamiya [84]2 years ago
4 0

Answer:

26.92 min

if I'm not wrong!

You might be interested in
Those are my choices pls tell me which one would fit this problem!! <br>THERES A PIC ATTACHED
denis23 [38]

Answer: Opens up, has a minimum

Step-by-step explanation:

If the x^2 term is positive the parabola opens up, if it is negative it opens down. Minimum always goes with up, maximum with down

7 0
3 years ago
What is equivalent to 3%
Aneli [31]

3%=0.03

You have to move the decimal to the right two times & you get 0.03

4 0
3 years ago
Read 2 more answers
A soft drink machine outputs of29 ounces per cup. The machines output is normally distributed with with a standard deviation of
Nataly_w [17]

Answer:

You will use the z score to find this so need a z score chart.

Step-by-step explanation: Remember to take what you want (35 ounce) minus the mean( 29) then divide by the standard deviation(4). Then you look up this number on the z score chart to find your probability of less than 35 ounces. You could then do the same thing using 34 ounces since your final answer will be between these two numbers.

3 0
3 years ago
What is the equation of a circle with a center located at (-3, 4) and a diameter of 14?
AnnZ [28]

Answer: (x + 3)^2 + (y - 4)^2 = 49

Step-by-step explanation:

The equation of a circle given the center and radius: (x - h)^2 + (y - k)^2 = r^2

Given: center (-3,4) ; h = -3 and k = 4

diameter = 14

To find the radius: divide the diameter by 2 = 14/2 = 7 = r

Center: (-3,4) and radius: 7

Equation of a circle: (x - h)^2 + (y - k) ^2 = r^2

Substitute h = -3, k = 4, r = 7

(x - (-3))^2 + (y - 4)^2 = 7^2

Answer:

Equation of the circle: (x + 3)^2 + (y - 4)^2 = 49

7 0
3 years ago
Write this number in scientific notation 0.000000358​
Fittoniya [83]

Step-by-step explanation:

0.000000358 written as scientific notation is

3.58 \times  {10}^{ - 7}

8 0
3 years ago
Other questions:
  • A delivery person uses a service elevator to bring boxes of books up to an office. The delivery person weighs 180 lb and each bo
    5·1 answer
  • The midpoint of BC is (5, -2). One endpoint is B (3,4). What are the coordinates of endpoint C?
    11·2 answers
  • What is 7 1/7 as an improper fraction
    9·1 answer
  • What is the variable for -7.8 = 4.4 + 2r
    15·1 answer
  • This graph shows the distance a car travels at a constant speed what is the speed of the car
    13·2 answers
  • -8.1 =v/7 + 3.1 what is v
    5·1 answer
  • In AHIJ, the measure of ZJ=90°, IJ = 5 feet, and JH = 3.2 feet. Find the measure of
    11·1 answer
  • Please answer it's due today​
    6·1 answer
  • A map is shown.<br><br> How far is Sandra's house from Johnny's house?
    7·2 answers
  • Giving Brainiest help me pleasee tyyy &lt;3
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!