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
ipn [44]
3 years ago
14

Explaining the Multiplication and

Mathematics
1 answer:
Leviafan [203]3 years ago
8 0

sample response: To convert larger units to smaller units, multiply. When the units are smaller, you need more of them to express the same measure. To convert smaller units to larger units, divide. When the units are larger, you need fewer of them to express the same measure.

You might be interested in
A rectangle has a perimeter of 14 inches.what is the largest possible area of the rectangle?
ozzi
14 divided by 4. Then square it. 12.25
6 0
2 years ago
2.The number of grams A of a certain radioactive substance present at time, in yearsfrom the present, t is given by the formulaA
professor190 [17]

Answer:

Given that,

The number of grams A of a certain radioactive substance present at time, in years

from the present, t is given by the formula

A=45e^{-0.0045(t)}

a) To find the initial amount of this substance

At t=0, we get

A=45e^{-0.0045(0)}A=45e^0

We know that e^0=1 ( anything to the power zero is 1)

we get,

A=45

The initial amount of the substance is 45 grams

b)To find thehalf-life of this substance

To find t when the substance becames half the amount.

A=45/2

Substitute this we get,

\frac{45}{2}=45e^{-0.0045(t)}

\frac{1}{2}=e^{-0.0045(t)}

Taking natural logarithm on both sides we get,

\ln (\frac{1}{2})=-0.0045(t)^{}(-1)\ln (\frac{1}{2})=0.0045(t)\ln (\frac{1}{2})^{-1}=0.0045(t)\ln (2)=0.0045(t)0.6931=0.0045(t)t=\frac{0.6931}{0.0045}t=154.02

Half-life of this substance is 154.02

c) To find the amount of substance will be present around in 2500 years

Put t=2500

we get,

A=45e^{-0.0045(2500)}A=45e^{-11.25}A=45\times0.000013=0.000585A=0.000585

The amount of substance will be present around in 2500 years is 0.000585 grams

4 0
8 months ago
Omg please help for brainlist !!!!!!!!!!!!!!!!!!!
zhannawk [14.2K]

Answer:

f(x) is linear

g(x) is exponential

Step-by-step explanation:

A linear function will always have the same rate of change between equally distant points, while an exponential function will have an increasingly large rate of change between equally distant points.

First, look at f(x). All these points are equally distant at 2 units apart on the x-axis, so they can be directly compared:

(-38)-(-18)=-20\\(-58)-(-38)=-20\\(-78)-(-58)=-20

All of these points are the same distance apart on the y, so f(x) must be a linear function.

Now look at g(x). These are also all equally distant at only 1 unit apart.

30-10=20\\90-30=60\\270-90=180

These are very clearly not the same distance apart on the y, so g(x) must be the exponential function.

6 0
2 years ago
Which best describes the figure that is represented by the following coordinates
AveGali [126]
Answer: Rectangle
Reasoning: 4 straight sides, 2 pairs of sides of equal length.
8 0
3 years ago
Read 2 more answers
182 – (4 + 92) answer thank you
Nikitich [7]

Answer:

86

Step-by-step explanation:

182 – (4 + 92)

I have big brain

5 0
1 year ago
Other questions:
  • Compare the given dimensions of four triangles. Which triangle is possible to construct?
    13·2 answers
  • What is cos A?
    6·1 answer
  • Find the surface area of the polyhedron below. The area of each base is 65 cm^2<br>​
    8·1 answer
  • Can you help me find the values of x and y. Please
    12·1 answer
  • What is 5 percent of $30 equal
    15·1 answer
  • Naomi has a neon tetra fish and a guinea pig. The fish is 25 milliliters long. The guinea pig is 25 centimeters long. What is th
    5·1 answer
  • The first week of January there are 49 dogs and 28 cats in the shelter. Throughout the month the ratio of dogs to cats remains t
    5·1 answer
  • a snowmobile manufacturer claims that the newest model is 20% lighter than the black and white of a picture of metal weighs 645
    10·1 answer
  • Me with this question ASAP
    6·1 answer
  • Which expression is equivalent to<br> 5-1/5-2
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!