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
Marat540 [252]
3 years ago
13

A scientist has a sample of the radioactive isotope bismuth-212. The isotope decays exponentially as shown in the table. Time (s

econds) Mass (grams) 10 26.8 20 23.9 30 21.3 40 19.0 50 16.9 60 15.1 Which equation best represents the curve of best fit for this set of data? A. f(x) = 29 • 0.989x B. f(x) = 27 • 1.011x C. f(x) = 30 • 0.989x D. f(x) = 28 • 0.234x
Mathematics
1 answer:
luda_lava [24]3 years ago
7 0

Answer:

f(x) = 30 • 0.989x

Step-by-step explanation:

Given the data :

10 26.8

20 23.9

30 21.3

40 19

50 16.9

60 15.1

Using technology, the exponential model equation obtained by plotting the data is :

y = 30.068(0.989)^x

Based on the general exponential formula :

y = ab^x

y = predicted value

Initial value, a = 30.068

Rate = b = 0.989

The most appropriate model equation from the options given is :

f(x) = 30 • 0.989^x

You might be interested in
Which number can each term if the equation be multiplied by to eliminate the decimals before solving
natima [27]
Answer is c 10 eliminate the decimal l
6 0
3 years ago
.86971 rounded to the 10th
skelet666 [1.2K]

Answer:

.9

Step-by-step explanation:

If the number behind that place is 5 or greater than you round up one but if it is 4 or below than you keep the number the same.

7 0
3 years ago
in question 9-12,determine if the equation of the line is in point-slope form or slope-intercept form and determine the slope of
rusak2 [61]
9 and 12 are slope-intercept form and 10 and 11 are point-slope form
4 0
3 years ago
Helpp
Alborosie
17 that’s the answer I did this one before
7 0
2 years ago
keeping in mind the role the order of precedence plays in equations, what would excel display as the result of the following equ
Alex73 [517]
The answer to youre question is 5.5
8 0
3 years ago
Other questions:
  • The photo printed has length of 6 imams width of 4. A smaller picture is printed the ratio of the new picture to the size of the
    6·1 answer
  • The modern United Kingdom and France, by virtue of most government power being held by the central, national government, are bes
    9·1 answer
  • Solve for X if MN =81<br> A)9<br> B)10<br> C)11<br> D)12
    11·1 answer
  • QUESTION 1!!!!!! Help asapppp
    7·1 answer
  • What is the range of the following data set?
    9·1 answer
  • What’s the awnser to that question
    15·1 answer
  • What is the distance between (-25, -3) and (1, -3)?
    12·1 answer
  • SOMEONE PLEASE HELP!!
    6·2 answers
  • I don’t know the answer to this.
    13·1 answer
  • Si tenemos 94 palos de escoba y los amarramos de 10 en 10, ¿cómo
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!