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]
3 years ago
12

Element X is a radioactive isotope such that its mass decreases by 73% every

Mathematics
1 answer:
lubasha [3.4K]3 years ago
6 0

Answer:

Step-by-step explanation:

You might be interested in
Find the equation of a line that goes through the points (8, -9) and (-4, 15).
Natasha_Volkova [10]

Answer:

y = - 2x + 7

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (8, - 9) and (x₂, y₂ ) = (- 4, 15)

m = \frac{15+9}{-4-8} = \frac{24}{-12} = - 2, thus

y = - 2x + c ← is the partial equation

To find c substitute either of the 2 points into the partial equation

Using (8, - 9), then

- 9 = - 16 + c ⇒ c = - 9 + 16 = 7

y = - 2x + 7 ← equation of line

3 0
3 years ago
14.8 = n minus 0.3<br> n = negative 15.1<br> n = negative 14.5<br> n = 14.5<br> n = 15.1
dlinn [17]

Hello!

14.8 = n - 0.3

n - 0.3 = 14.8

n = 14.8 + 0.3

n = 15.1 → value of n

Good luck! :)

4 0
3 years ago
Calculate the total population increase of South Africa from 2001 Difference You may use the following formula: Increase = 2001
gayaneshka [121]
Ccd is good to see ur message and he is so fine lol i just got home lol he is fine with it too but i is good too but he is
7 0
3 years ago
A bag contains 20 slips of paper Individually numbered. If a slip of paper and a letter in the word PENNSYLVANIA is chosen at ra
Soloha48 [4]

Answer:

P(M4\ n\ V) = 2.083\%

Step-by-step explanation:

Given

Paper = 20 slips

Word: PENNSYLVANIA

Required

Determine P(Multiple of 4 and V)

The sample size of the 20 slips is:

n(S) = 20

The outcomes of multiples of 4 is:

M4= \{4,8,12,16,20\}

n(M4) = 5

So, the probability of multiples of 4 is:

Pr(M4) = \frac{5}{20}

Pr(M4) = \frac{1}{4}

The sample size of PENNSYLVANIA is:

n(S) = 12

The outcome of V is:

n(V) = 1

So, the probability of V is:

P(V) = \frac{1}{12}

So, the required probability is: P(Multiple of 4 and V)

P(M4\ n\ V) = P(M4) * P(V)

P(M4\ n\ V) = \frac{1}{4} * \frac{1}{12}

P(M4\ n\ V) = \frac{1}{48}

P(M4\ n\ V) = 0.02083

Express as percentage

P(M4\ n\ V) = 0.02083 * 100\%

P(M4\ n\ V) = 2.083\%

4 0
3 years ago
Help with this inequality pleaze
Eddi Din [679]

Answer:

108 cm^2

Step-by-step explanation:

Trapezoid area = (a+b)/2 * h

= (6+12)/2 * 6 = 54 cm^2

Triangle area = b*h/2 = 12* (15-6) / 2 = 54 cm^2

Total area is 54+54 = 108 cm^2

3 0
2 years ago
Other questions:
  • Which situation shows the appropriate use of the law of large numbers? . a. Wilma predicts rolling a 2 about 50 times if she rol
    10·1 answer
  • A ball is kicked from the ground with a velocity of 38.50 ft/sec at an angle of 35 degrees. How many feet will the ball travel h
    7·1 answer
  • Whats the answer how do you simplify this
    15·1 answer
  • In a survey, 15 high school students said they could drive and 15 said they could not. Out of 60 college students surveyed, 30 s
    15·2 answers
  • Help me find the surface area of this. -10 points so please answer!!!
    10·1 answer
  • Find the coordinates of the points of intersection of the graphs without building them: 5x–4y=16 and x–2y=6
    15·1 answer
  • WILL MARK BRAINLIEST JUST PLZ PLZ HELP
    7·1 answer
  • How would you factor this? <br> 12x^2 + 19x + 3
    9·2 answers
  • Hi I need help with math ​
    7·1 answer
  • A bar graph titled Games per month has month on the x-axis and number of games on the y-axis. January has 7 games; February, 5 g
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!