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
uranmaximum [27]
3 years ago
12

A Scientist has 1200 grams of radioactive substance. Every day, half of the substance decays and only half remains.on which day

will the scientist have less than one gram of the substance left ? There will be less than one gram on day ________
Mathematics
1 answer:
Vladimir [108]3 years ago
6 0

Step-by-step explanation:

Day 1: 1200g / 2¹ = 600g

Day 2: 1200g / 2² = 300g

Day 3: 1200g / 2³ = 150g

The pattern is the amount of radioactive substance on day n is 1200 / (2^n).

Therefore, we have to find n where 2^n > 1200.

The first such n is 11 (2¹¹ = 2048).

Hence, there will be less than 1 gram on day 11.

You might be interested in
Suppose A = {2,5,7,9,13, 25, 26).<br>(a) Find n(A).<br>n(A) =<br>(b) T/F: 7. A​
charle [14.2K]

Answer:

a)   n (A) = 7

Step-by-step explanation:

Here, set A =  {2,5,7,9,13, 25, 26)

Noe, for any set A,

n (A) is defined as he total number of elements in the set A.

or, n(A) = CARNALITY OF SET A

Here,the number of elements in set A = 7

⇒ n (A) = 7

6 0
3 years ago
Interest of 1 million dollars 23% and 6 years please solve and will give brainliest to correct answer
Otrada [13]

Answer:

$2,462,825.99 is the interest accrued

Step-by-step explanation:

hope this helps

8 0
3 years ago
D is the wrong answer please help :(
Stella [2.4K]

This can be solved by Newton's binomial formula

Tk+1 = (n k) a∧(n-k) b∧k  k+1=7 => k=6, n=11 , a=-3x and b=-2y

T7= (11 6) (-3x)∧(11-6) (-2y)∧6 = (11*10*9*8*7)/(1*2*3*4*5) (-3x)∧5 (-2y)∧6

T7= 462 (-3x)∧5 (-2y)∧6

The correct answer is A.

Good luck!!!


8 0
3 years ago
Read 2 more answers
Find the mean of the following numbers; 7 21 2 17 3 14 7 4 9 7 9
Margarita [4]

Answer:

9

Step-by-step explanation:

2,3,4,7,7,7,9,9,14,17,21

21,17,14,9,9,7,7,7,4,3,2

3,7,7,7,9,9,17,21

3 0
3 years ago
Read 2 more answers
5. A certain company stock began at a starting price of $23
Kaylis [27]

Answer:

$ 35 .00

Step-by-step explanation:

..............................

5 0
3 years ago
Other questions:
  • Gillian bought some bund and cakes for $15.25. A bun and a cake cost $2 altogether and each cake cost $1.25. She bought one more
    7·1 answer
  • Larry paid 11.20 for four gallons of gas. How much was each gallon of gas
    15·2 answers
  • 3
    11·1 answer
  • Find the area of shaded region in each figure
    5·1 answer
  • A bakery has 72 half gallons of milk. It takes 1 2/3 cups of milk to make the cake. Note that 1 cup= 1/8 half gallon= 0.125 half
    12·1 answer
  • Janice just got a 5% raise, so her hourly pay increased by
    7·1 answer
  • In △ABC, m∠A=15 °, a=10 , and b=11 . Find c to the nearest tenth.
    13·1 answer
  • Write the least possible 3-digit number using only 2 different numbers.
    5·1 answer
  • Joe kept track of how much TV she watched each day for two weeks how many hours did she spend watching TV
    10·1 answer
  • Maria rides her bicycle to school at a constant speed of 15 miles per hour.If the distance to school is 6 miles,how many minutes
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!