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
Elza [17]
3 years ago
13

An element with a mass of 970 g decays by 15.1% per minute how much of the element remaining after 14 minutes

Mathematics
2 answers:
worty [1.4K]3 years ago
5 0

Answer:

The answer is  98.1

Step-by-step explanation:

Exponential Functions:

y=ab^x

a=starting value = 970

r=rate = 15.1%=0.151

Exponential Decay:

b=1-r=1-0.151=0.849

Write Exponential Function:

y=970(0.849)^x

Plug in time for x:

y=970(0.849)^{14}

y= 98.05718

Evaluate

y≈98.1

erastovalidia [21]3 years ago
4 0
The amount of the element remaining (y) in grams after time (t) in minutes is defined by the equation y=970(1-.151)^t. Substitute t=14 into the equation and solve for y. y=970(.849)^14=98.06 rounded to two decimal places.
You might be interested in
1. It is a three-digit whole number.
taurus [48]

Answer:

660

Step-by-step explanation:

4x5x11x3 = 660

8 0
3 years ago
If you apply the changes below to the absolute value parent function f(x)=lxl, what is the equation of the new function?
Snowcat [4.5K]

Answer:

f(x)=|x+4|+2

Step-by-step explanation:

The given absolute value function is

f(x)=|x|

This is the base or the parent function.

The transformation f(x)=|x+b|+c will shift the parent function b units to the left and c units up.

From the question, b=4 units and c=2 units.

The new equation is f(x)=|x+4|+2

7 0
3 years ago
Read 2 more answers
As shown in the diagram of the right triangles below, Triangle: ABC ~ Triangle: DEF, AB = 7x, BC = 4, DE = 7, EF = x. What is th
charle [14.2K]

since triangles are similar

4/x = 7x/7

=》 4/x = x

=》x^2 = 4

=》 x = 2

for right triangles a^2 = b^2+c^2

DF^2 = 7^2+2^2 = 53

=》 DF = 7.28

perimeter of DEF = 7 +2+7.28 = 16.28

8 0
3 years ago
Angle J and angle M are base angles of an isosceles trapezoid JKLM. If angle J=20x+9 and angle M =14x+15, find angle K
anzhelika [568]
K or l will be 151 degrees.

j and m are equal to each other, giving you x=1, substitute this in to get j and m equal 29 degrees.  k or L are opposite angles meaning they add up to 180 when added to j and m so j+l=180 or m+k=180
5 0
3 years ago
Read 2 more answers
PLEASE PLEASE HELP!!!! WILL GIVE BRAINLIEST!!!!
Oksanka [162]

The answer is Option B (x + 6)(x^2 + 8)

Step-by-step explanation:

Step 1: Group the given cubic polynomial into two sections.  

So  polynomial can be  grouped as

(x^3 + 6x^2) + (8x + 48)

Step 2:Find what's the common in each section.

In section (x^3 + 6x^2)  the come term is x^2

In section (8x + 48)  the come term is 8

Step 3:Factor the commonalities out of the two terms.

Factoring out x^2 from the first section  (x^3 + 6x^2), we get  x^2(x + 6)

Factoring out 8 from the second section(8x + 48) ,  we will get 8(x + 6).

Step 4: Combine the factors together for terms contains the same factor,

Combining we get,\left(x+6\right)\left(x^2+8\right)

\left(x+6\right)\left(x^2+8\right)

7 0
3 years ago
Other questions:
  • As a pharmacist, part of your daily duties is to mix medications in the proper proportions for your patients. For one of your re
    12·2 answers
  • What do I have to do
    15·1 answer
  • 7 x 6<br><img src="https://tex.z-dn.net/?f=6%20%5Ctimes%207" id="TexFormula1" title="6 \times 7" alt="6 \times 7" align="absmidd
    7·1 answer
  • An explanation would be appreciated! Will mark BRAINLIEST for best answer! #3
    13·1 answer
  • What is the domain of the function graphed below?
    15·1 answer
  • What is the minimum number of angles required to determine the Cartesian components of a 3D vector and why?
    11·1 answer
  • Is 10/26 equivalent 36/52
    13·2 answers
  • Can some help me pls
    6·1 answer
  • An account earns simple annual interest.<br><br> $1500 at 4% for 5 years
    6·2 answers
  • If area of a circle is 49/64 pie cm square,then find the circumference of the circle?​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!