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
Inessa05 [86]
2 years ago
12

The expression 60(0.75)^x represents the amount of a drug in milligrams that remains in the bloodstream after x hour. What was t

he initial value of the drug in the bloodstream?
Mathematics
1 answer:
kogti [31]2 years ago
7 0
It would be 60.

a(b)^x
Since a/ 60 would represent initial value.
You might be interested in
Write each number in standard form.<br><br> 1.6 × 10 -3
Anna007 [38]

the answer in standard form is 10+3

8 0
3 years ago
Read 2 more answers
The function f(x) = 6x + 8 represents the distance run by a cheetah in miles. The function g(x) = x − 2 represents the time the
Ivenika [448]

Answer:

26; the cheetah's rate in miles per hour

Step-by-step explanation:

4 0
3 years ago
You have just isolated a new radioactive element. If you can determine its half-life, you will win the Nobel Prize in physics. Y
Troyanec [42]
Staals half
1 gram left
0.3 grams left
half lives are normally written in years
it goes likt this

A=P( \frac{1}{2})^ \frac{t}{h}
A=final amount
P=initila amount
t=time elapsed
h=time half life is (same units as time)

let's use days as the units of time


we are given
initial amount=1gram
final amount=0.3gram
time=4 days

so
0.3=1( \frac{1}{2})^ \frac{4}{h}
solve for h
0.3=( \frac{1}{2})^ \frac{4}{h}
take the ln of both sides
ln(0.3)=ln( \frac{1}{2})^ \frac{4}{h}
ln(0.3)=\frac{4}{h}ln( \frac{1}{2})
times both sides by h
hln(0.3)=4ln( \frac{1}{2})
divide both sides by ln(0.3)
h= \frac{4ln( \frac{1}{2}) }{ln(0.3)}
use calculator
h=2.30287
3 sig figs
h=2.303 days
6 0
3 years ago
A shirt is on sale for 30% off. The expression p - 0.30p, where p is the original cost of the shirt, can be used to find the sal
Law Incorporation [45]

Answer: 0.70

Step-by-step explanation the same as decreased by 30%" would be (1.00 - 0.30)(original cost), or 0.70(original cost)

3 0
2 years ago
Please help! Chapter test tomorrow!!<br>PLEASE i need to show the work, the equations.
Nana76 [90]

Answer:

x=6

Step-by-step explanation:

4x-15=2x-3

+15 +15

4x=2x=12

/2 /2 +12

2x=12

/2 /2

x=6

4 0
3 years ago
Read 2 more answers
Other questions:
  • Suppose a mutual fund qualifies as having moderate risk if the standard deviation of its monthly rate of return is less than 5​%
    14·1 answer
  • Lila forgot the security code for her apartment building. The code is two different digits followed by a capital letter. How man
    13·2 answers
  • 24 students will be divided into 4 equal size terms. Each stundent will count off, beginning with the number 1 as the first team
    14·1 answer
  • Geometry: What is the blank for this proof? (attached file)
    13·1 answer
  • Find the inverse of y=11^x
    10·1 answer
  • 3/5 x 1/4 find each product
    5·2 answers
  • The museum of natural history has an auditorium that can seat 200 people. A class of 45 students is seated in the auditorium for
    15·1 answer
  • After a discount of 40%, the sale price of a ride pass at a fun park is $30. What is the original
    13·2 answers
  • QUESTION 1<br> What is the mean of 21, 23, 35, 40)?<br> o A. 27<br> B. 31.75<br> e C. 19<br> D.29.75
    12·1 answer
  • Is a function f(x)= 1/x odd or even?<br>​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!