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
SashulF [63]
3 years ago
11

The graph of f(t) = 4.2 shows the value of a rare coin in year t. What is the

Mathematics
1 answer:
12345 [234]3 years ago
3 0

<u>Given</u>:

The graph of f(t)=4 \cdot 2^t shows the value of a rare coin in year t.

We need to determine the meaning of the y - intercept.

<u>Meaning of the y - intercept:</u>

Here, t represents the x - axis and f(t) represents the y - axis.

The value of y - intercept is the value of y when x = 0.

Hence, the the value of f(t) can be determined by substituting t = 0 in the function f(t)=4 \cdot 2^t

Thus, we have;

f(0)=4 \cdot 2^0

f(0)=4

Thus, the value of the y - intercept is 4.

The y - intercept represents the value of the rare coin in year 0.

Therefore, the meaning of the y - intercept is "When it was purchased (year 0), the coin was worth $4".

Hence, Option B is the correct answer.

You might be interested in
Write the mixed number as a decimal. 1 5/8
likoan [24]

Answer:

1.625

Step-by-step explanation:

The decimal of 5/8 is 0.625.

We can then add 1 to it, since it is a whole number

Therefore, we have 1 + 0.625 = 1.625

6 0
3 years ago
Read 2 more answers
Find the greatest comman factor of 15 and 20
Darina [25.2K]
The greatest common factor of 15 and 20 is 5
4 0
3 years ago
Read 2 more answers
Translate the description as an algebraic expression:
charle [14.2K]

Answer:

13/20p

Step-by-step explanation:

Here, we want to write an expression from the given statement

We start from the product of 20 and p

Mathematically. that is 20 * p = 20p

Now to find the ratio, we simply place 12 over the product

We have this as;

13/20p

5 0
3 years ago
During two years, the population of birds of an island became 7 times more than before. If the first year increase in the popula
9966 [12]

The percent increase of the second year was 85.71%

Step-by-step explanation:

The exponential growth formula is y=a(1+r)^x

where;

y=population after x years

a=original population

r=growth rate as a decimal

x=number of time interval that have passed

Let starting population be p

The first year increase in the population was 40% this means;

r=0.4 , x=1 and a=p thus the equation will be

y=p(1+0.4)^1 ⇒⇒y=1.4 p

In the second year the population of birds of an island became 7 times more than before which is 7p

7p= 7*1.4p= 9.8p

Increase will be;

9.8p-1.4p=8.4

% increase will be;

8.4/9.8 *100 =85.71%

Learn More

Percent increase: brainly.com/question/13882170

Keywords : population, birds, island,increase

#LearnwithBrainly

5 0
3 years ago
Which of the following groups of terms can be used interchangeably when working with normal distributions?
BARSIC [14]

Answer:

The correct answer is D) areas, probability, and relative frequencies

Step-by-step explanation:

This is because each of these terms refers to an amount of space surrounding the mean on the normal distribution curve. Each of them let's us know how likely a spot is to have a value within it.

The z-score would not fit this as it identifies the value and how far away a single spot on the graph would be.

5 0
3 years ago
Other questions:
  • Square A B C D is shown. Each side is 30 yards long. A diagonal is drawn from point D to point B to form 2 triangles.
    6·2 answers
  • In a candy mix there are 4 green bars for every 3 red bars how many red bars are ther if there are 200 green bars
    11·2 answers
  • Fred Buys a signed shirt for £25 and sells it for £40. What is the percentage profit? explaination please?
    15·2 answers
  • What is the factorization of the trinomial below? 14x^2-39x-35
    13·1 answer
  • Is 1/2 and 2/4 are equivalent fractions?
    14·2 answers
  • If you are given a graph, an equation, and a table; each representing a different linear function how would you determine which
    8·1 answer
  • Can somebody help me with this question
    13·1 answer
  • Nvmmmmmmmmmmmmmmmmmmmm
    5·1 answer
  • Find the missing side.
    13·1 answer
  • A surveyor randomly interviewed 62,348 people who live in the state of florida to gather information on whether national healthc
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!