All categories

3 years ago

11.) A radioactive material has a half-life of 1 day. The material decays

Mathematics

1 answer:

Svetlanka [38]3 years ago

6 0

Answer:

UHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH

Step-by-step explanation:

thats what u did to me before it deleted

You might be interested in

Solving quadratics using square root:<br>12 + (x-2)^2= 3

jeka94

$\bf 12+(x-2)^2=3\implies (x-2)^2=-9\implies \sqrt{(x-2)^2}=\sqrt{-9}
\\\\\\
x-2=\sqrt{-9}\implies x=\sqrt{-9}+2$

6 0

3 years ago

F(x) =2x^2+4x+5<br> Find: (a+h)

larisa [96]

Answer : a = -2, h = 1

5 0

3 years ago

The radius of a circle is

Inessa05 [86]

Red box
measurement from the center of circle to the edge of a circle

5 0

3 years ago

Read 2 more answers

In the table below, x represents the miles traveled and y represents the cost to travel by train.

Afina-wow [57]

Answer:

Third option

m = 2.25

Step-by-step explanation:

The slope of the function is equal to its rate of change between two points.

For example, for a couple of points $(x_1, y_1),\ (x_2, y_2)$

The slope is:

$m =\frac{y_2-y_1}{x_2-x_1}$

In this problem we have the following points

1.(2, 8.50) , 2. (5, 15.25), 3. (8, 22.00) , 4. (12, 31.00)

We calculate the slope between the first two points

$m =\frac{15.25-8.50}{5-2}=2.25$

We calculate the slope between the points 3 and 4

$m =\frac{31-22}{8-4}=2.25$

We calculate the slope between the points 2 and 3

$m =\frac{22-15.25}{8-5}=2.25$

The slope is always the same. Therefore m is constant and the fution is a line of slope m = 2.25

7 0

3 years ago

Read 2 more answers

You have been asked to build a scale model of a restaurant out of bottle caps. The restaurant is 20 feet tall. Your scale is 2.4

Amanda [17]

Answer:

$40\ bottle\ caps$

Step-by-step explanation:

we know that

The scale is $\frac{2.4}{1}\ \frac{cm}{ft}$

That means

2.4 cm in the model represent 1 foot in the real

In this problem

The restaurant is 20 feet tall

Find the height of the model

Multiply the actual height of the restaurant by the scale 2.4

$20\ ft=20(2.4)=48\ cm$

A bottle cap is 1.2 cm tall

To find out the number of bottle caps divide the height of the model by 1.2

$\frac{48}{1.2}= 40\ bottle\ caps$

8 0

3 years ago