15. Radioactive nuclei are highly stable and emit radiation to becomeunstable.
TRUE
FALSE

Answers

Answer 1

Answer:

The statement radioactive nuclei are highly stable and emit radiation to become unstable is FALSE.

To determine if the statement is true or false we need to know what radiactivity is

What is radioactivity?

Radioactivity is the spontaneous disintegration of unstable atomic nuclei to form stable more energetic nuclei with the emission of radiation.

Radioactivity includes the following

disintegration of a larger atomic nuclei to a smaller more stable nuclei
Emission of radiation

So, radioactive nuclei which are unstable emit radiation and become more stable.

So, the statement radioactive nuclei are highly stable and emit radiation to become unstable is FALSE.

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I ONLY HAVE 5 MIN TO TURN THIS IN PLS HELP!!!!!!!!!!!!!!!!!!!!!!Combine like terms.-2+6y^3-2y^3+7-7+6x^2-2x^2
Match the measurable quantity given by its formula with the appropriate unit(s)
Whatt is the perimeter of a square if each side is five feet
On the map of an amusement park on a coordinate grid, the skating rink is at (−1.5, −1).Coordinate grid shown from negative 3 to positive 3 on x-axis and negative 3 to positive 3 on y-axis. There are increments of 1 over 2 for each grid line on each of the two axes. Only the whole numbers are labeled on either side of the axis. Which of these shows how to plot the point to mark the skating rink? From the origin, move 1.5 units to the left along the x-axis and 1 unit vertically down, and place the point. From the origin, move 1 unit to the left along the x-axis and 1.5 units vertically down, and place the point. From the origin, move 1 unit to the right along the x-axis and 1.5 units vertically down, and place the point. From the origin, move 1.5 units to the right along the x-axis and 1 unit vertically down, and place the point.
What is the value of x in the equation below?-3-(-8)-(-2) = XO -13O-9O 307

{x-3y=24}
{3x+Y=12}
Solve each of the following linear systems by eliminating

Answers

3x + y = 12 (multiply whole equation by 3)
x - 3y = 24

9x + 3y = 36
x - 3y = 24
10x = 60
x = 60 / 10
x = 6
puting the x value in 1st equation
3 (6) + y = 12
18 + y = 12
y = 12 - 18
y = -6

Answer x = 6
y = -6

Create a quadratic polynomial function f(x) and a linear binomial in the form (x − a).Show all work to evaluate f(a) using the function you created.

Answers

our quadratic polynomial function is:

f(x) = 4x^2 + 2x + 5

our linear binomial form is:
x - a = -2
hence:
a = x + 2

and so we have:
f(x) = 4x^2 + 2x + 5
f(a) = 4(x + 2)^2 + 2(x + 2) + 5
= 4(x^2 + 4x + 4) + 2x + 4 + 5
f(a) = 4x^2 + 18x + 25

Book club A charges $20 for membership and $2 per book rental. Book club B charges $10 for membership and $3 per book rental. For how many movie rentals will the cost be the same at both book clubs? What does that cost?

Answers

Given:

Book club A charges $20 for membership and $2 per book rental.

Book club B charges $10 for membership and $3 per book rental.

To find:

The number of books for which the cost be the same at both book clubs.

Solution:

Let x be the number of books.

Book club A charges $20 for membership and $2 per book rental. So, the total cost is

$C_1=20+2x$ ...(i)

Book club B charges $10 for membership and $3 per book rental. So, the total cost is

$C_2=10+3x$ ...(ii)

Equating (i) and (ii), we get

$10+3x=20+2x$

$3x-2x=20-10$

$x=10$

The total cost is

$C_1=20+2(10)$

$C_1=20+20$

$C_1=40$

Therefore, the total cost at both book clubs are same for 10 rental books and that cost is $40.

Which inequality represents this sentence?Seven times six is less than or equal to nine times five.

7 • 6 ≥ 9 • 5

7 • 6 < 9 • 5

7 • 6 > 9 • 5

7 • 6 ≤ 9 • 5