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
Anon25 [30]
3 years ago
13

A radioactive substance decays exponentially. A scientist begins with 100 milligrams of a radioactive substance. After 27 hours,

50 mg of the substance remains. How many milligrams will remain after 36 hours?
Mathematics
1 answer:
never [62]3 years ago
7 0
33.3 because 27/50=36/x and x=66.67 and thats how much as decayed after 36 hours but you want what is left so subtract from 100 and get 33.3
You might be interested in
Encuentra el cociente ??​
vagabundo [1.1K]

For this case we must find the quotient of the following expression:

\frac {(- 8x ^ 2 * y) (- 7x ^ 5 * y ^ 3)} {- 2x ^ 2 * y ^ 3}

We can rewrite the expression as:

(We take into account that- * - = +)

\frac {56x ^ 2 * y * x ^ 5 * y ^ 3} {- 2x ^ 2 * y ^ 3} =

By definition of multiplication of powers of the same base, we place the same base and add the exponents:

\frac {56x ^ {2 + 5} * y ^ {1 + 3}} {- 2x ^ 2 * y ^ 3} =\\\frac {56x ^ {7} * y ^ {4}} {- 2x ^ 2 * y ^ 3} =

By definition of division of powers of the same base, we place the same base and subtract the exponents:

-28x^{ 7-2} * y^{ 4-3} =\\-28x ^ 5 * y

Answer:

-28x ^ 5 * y

4 0
3 years ago
MZFEG=6x - 7 and mZFED=2x +41 , find the mZDEG
uranmaximum [27]

Answer:

this might be the answer

5 0
3 years ago
What is the solution to the inequality 7x + 2 < 3x + 1?
ikadub [295]

Answer:

none of the answer above

the answer is X < -1/4

Step-by-step explanation:

7x-3x<1-2

4x<-1

x<-1/4

8 0
3 years ago
Which of the following problems represents the following:
madam [21]

Answer:

D

Step-by-step explanation:

"Turn around phrase" just means that you are subtracting the last number minus the first number. Subtracting the negative number is written as -(-34.7)

5 0
3 years ago
Which of the following equations have infinitely many solutions? 
Bond [772]

Answer:

Equation I , II and V.

Step-by-step explanation:

Number II:L

0.5(8x + 4) = 4x + 2    Distributing the 0.5 over the parentheses:

4x + 2 = 4x + 2

The 2 sides of this equation are identical so we can make x any value to fit this identity. That is there are Infinite Solutions.

I and V are also included:

I: 12x + 24 = 12x + 24.

V left side = right side.

8 0
3 years ago
Other questions:
  • Please help me with this
    7·1 answer
  • One of the zeros of the quadratic equation x^2=9 is 3. Find the other zero. x =
    10·1 answer
  • They notice 8 spiders in the tree, 5 cockroaches, 7 bees, 3 deer, 4 cows and a pair of antlers behind a bush. How many legs do a
    12·2 answers
  • What is the exponential regression equation that fits these data? x у 1 4 2 9 3 27 4 90 5 250 6 580 O A. y = 39.16x2 - 169.38x+
    5·1 answer
  • Calculate the mean of 66,73,65,60​
    5·1 answer
  • Whats the surface area of a cube whose volume is 1664??​
    11·2 answers
  • What is 4 15/24 as a decimal
    14·2 answers
  • 52% of 1000 registered voters intend to vote for Steven Collins for mayor. What is the 95% confidence interval to describe the t
    13·1 answer
  • Pls help me thank youu, it shouldn't take to long :)) just how do I do it I can't remember​
    14·1 answer
  • PLEASE HELP!! will give brainliest for the right answer.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!