Answer:
D
Step-by-step explanation:
You can't check to see if your answer makes sense if there is no answer. You can't identify what your trying to find if you don't know the question. If you just solve the problem then you will probably get a bad grade. If you make a plan you need to know what your doing first so reading the problem carefully is the right answer.
The resale value of a textbook decreases by 25% with each previous owner. A new textbook is sold for $85. Which function represents the resale value of the textbook after x owners?
f(x) = 85(1 – 0.25)x
f(x) = 85(1 + 0.25)x
f(x) = 85(0.25)x
f(x) = (85 – 0.25)x
9514 1404 393
Answer:
(a) f(x) = 85(1 – 0.25)^x
Step-by-step explanation:
The growth rate is -25%, so the growth factor is 1-25% = 1 - 0.25.
Each increase in the number of previous owners causes the value to be multiplied by this growth factor, so the overall multiplier is (1 -0.25)^x
The value is the initial value times this multiplier:
f(x) = 85(1 -0.25)^x . . . . matches the first choice
The function that represents the situation is f(x) = 85 (1 - 0.25)ˣ
What is exponential decay?An exponential function's curve is created by a pattern of data called exponential decay, which exhibits higher decreases over time.
The exponential decay function:
Aₙ = A₀(1-r)ˣ, where y = Final amount, A₀ = Initial amount, r = Rate of decay in decimal form, x = Time.
Let's call the resale value of the textbook after x owners as f(x). We know that the resale value decreases by 25% with each previous owner. This means that after the first owner, the resale value will be 75% of the original value.
After the second owner, it will be 75% of 75% (or 56.25%) of the original value.
Similarly, after the third owner, it will be 75% of 75% of 75% (or 42.1875%) of the original value, and so on.
Using this information, we can write the function f(x) as:
f(x) = 85 (0.75)ˣ
f(x) = 85(1 - 0.25)ˣ
where 85 is the original value of the textbook (when x = 0), and (0.75)ˣ represents the percentage of the original value after x owners.
Therefore, the function that represents the resale value of the textbook after x owners is described as f(x) = 85 (0.75)ˣ.
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Jeremy can type 220 words in 4 minutes. That means he can type how many words per minute?
Answer:
55
Step-by-step explanation:
220 divided by 4, is 55.
Evaluate the following using a nmber line:-4+-5+3
Answer:
-6
Step-by-step explanation:
-4+-5=-9
-9+3=-6
Find the area of the rhombus! Please help!
Answer:
100m
Step-by-step explanation:
First, find the area of one triangle. Use l*w/2 to do that.
10*5=50
50/2=25
Multiply this by 4 to get the total area
25*4=100
Have a good day!
finish the table and write the equation
Answer:
29
Step-by-step explanation:
Each number has 4 in difference
Answer:
29
Step-by-step explanation:
25+4=29
the table above shows the number of miles four different cars traveled and the amount of gasoline each car consumed. which car has the best mileage?
PLEASE HELP
Answer:
A. Pontiac
Step-by-step explanation:
Camry's mileage = Miles travelled / gallons of fuel used
= 196 / 11
= 17.82
Pontiacs mileage = Miles travelled / gallons of fuel used
= 220 / 13
= 16.92
Bluck's mileage = Miles travelled / gallons of fuel used
= 356 / 15
= 22.25
Toyotas mileage = Miles travelled / gallons of fuel used
= 583 / 21
= 27.76
The car with the best mileage is Pontiac
................................................
....
Answer:
HAVE A GOOD DAY :)))))))) <3
Step-by-step explanation:
Fill in the table using this function rule.
y=29-4x
Answer:
x.1 y.25
x.3 y.17
x.5 y.9
x.6 y.5
Step-by-step explanation:
4x-5y+30=0 in slope-intercept form
Answer:
y=4/5x+6
Step-by-step explanation:
ASAP!!!!!!!!!!!! I NEED HELP!!!!! I WILL MARK BRAINLIEST!!!!!!!
How do you find the run between two points? Can the rise be negative? Explain
Answer:
Step-by-step explanation:
To find run between two points, you will use the x-values.
For example, (2,3) and (4,5).
Your equation for slope is m=[tex]\frac{y_2 - y_1}{x_2 - x_1}[/tex]
To find the run of these two numbers, you will subtract the second x value from the first x value.
Your answer would be 2 for the run.
It is possible for the rise to be negative if the y value of the point is greater in the first point than the second.
Example:
points (2,8) and (5,1)
1 - 8 would equal -7.
be SPEEDY! Name two
perpendicular lines and two parallel lines.
How much force is needed to accelerate a 70 kg skier at 2 m/sec2?
Force = mass x acceleration
Force = 70 kg x 2 m/s^2
Force = 140 N
I need help with this
Answer:
14
Step-by-step explanation:
add
Two sailboats are traveling along the same path away from a dock, beginning from different locations at the same time. John’s boat beings 30 miles from the dock and is 50 miles from the dock after 5 hours. The distance of Roberta’s boat from the dock is represented by the function y = 5x + 25, where x represents time and y represents the distance from the dock.
Which boat was farther from the dock at the beginning, and which traveled more quickly?
A. John’s boat was farther from the dock at the beginning, but Roberta’s boat traveled more quickly.
B. Roberta’s boat was farther from the dock at the beginning, and it traveled more quickly.
C. John’s boat was farther from the dock at the beginning, and it traveled more quickly.
D. Roberta’s boat was farther from the dock at the beginning, but John’s boat traveled more quickly.
Please Help!!!!
Answer:
c
Step-by-step explanation:
The correct statement is John’s boat was farther from the dock at the beginning, and it traveled more quickly option (C) is correct.
What is a linear equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
It is given that:
Two sailboats are traveling along the same path away from a dock, beginning from different locations at the same time.
y = 5x+25
at starting x=0
y = 25 miles away from the dock
x = 5
y = 5×5+25
y = 50 miles
= (50 - 25)/5
= 5
Thus, the correct statement is John’s boat was farther from the dock at the beginning, and it traveled more quickly option (C) is correct.
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HELPPPP i’ll give brainliest if it’s right!!!
Answer:
the answer is A and D
Step-by-step explanation:
Answer:
[tex]\sqrt{19}[/tex] & [tex]\sqrt{48}[/tex]
Step-by-step explanation:
[tex]\sqrt{81}[/tex] = 9
[tex]\sqrt{64}[/tex] = 8
Both are rational, so they are not correct
pls help quick
Which statement describes the blood type of a person with the alleles IAi?
It is type AB because I and i are codominant.
It is type AB because A and i are codominant.
It is type A because i is dominant and A is recessive.
It is type A because A is dominant and i is recessive.
Answer:
It is type A because A is dominant and i is recessive.
Step-by-step explanation:
Answer:
I agree with 5421103, the answer is C.
Step-by-step explanation:
Christina owns a café. The graph shows the number of cups of tea that were sold at her café each hour past noon. Based on the model, approximately how many cups of tea can Christina expect to sell during the eighth hour?
Answer:
Where's the graph? I need the graph to answer
Approximately 175 cups of tea can Christina expect to sell during the eighth hour.
We need to find how many cups of tea can Christina expect to sell during the eighth hour.
How to interpret the graph?To interpret a graph or chart, read the title, look at the key, and read the labels. Then study the graph to understand what it shows. Read the title of the graph or chart. The title tells what information is being displayed.
From the given graph we can see that corresponding to the x-axis for the 8th hour along the y-axis 175 cups of tea were sold.
Therefore, 175 cups of tea were sold.
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40 miners need to ride the elevator to the bottom of the mine. The elevator can hold 9 miners at a time. How many miners will be in the elevator on its last trip?
Answer:
the answer is 4
Step-by-step explanation:
if I have 130 of something and I need 200 how many more do I need
Answer:
70
Step-by-step explanation:
200 - 130
What is the probability that Mark and Bobby will both choose mushrooms?
Answer: choose mushrooms out of what?
326 ÷ 53 Then, check using multiplacation.
Answer:
the answer is 6,150
Step-by-step explanation:
Sorry if im wrong
Answer:
it is 6.150
Step-by-step explanation:
divide 360 its groups of 53 and you get 6.150
The test scores for 15 students are 72, 74, 74, 79, 82, 82, 82, 82, 86, 86, 86, 87, 87, 89, and 92. Find the mean of the data. Round your answer to two decimal places.
Answer:
82.67
Step-by-step explanation:
1240 divided by 15 = 82.66667
Plz if u would mark me as brainlest!
On Monday, a local hamburger shop sold a combined total of 588 hamburgers and cheeseburgers. The number of cheeseburgers sold was three times the number of hamburgers sold. How many hamburgers were sold on Monday?
the answer would be 147.I hope this helps you
Step-by-step explanation:
4h=588
h=588÷4
what is 325 x 6 for middle school 5th grade math
Answer:
Step-by-step explanation:
1950
Answer:
1,950
Step-by-step explanation:
I plugged the numbers into a calculator but you can also do it the long way by multiplying 6 to each part of 325.
in (1,8) is y greater than x + 5
Answer:
True.
Step-by-step explanation:
Note the point values: (x , y) = (1 , 8) ∴ x = 1, y = 8
Plug in the corresponding numbers to the corresponding variables in the equation:
y > x + 5
(8) > (1) + 5
8 > 1 + 5
8 > 6
8 is greater than 6, ∴ y is greater than x + 5.
~
Answer:
yes it would
Step-by-step explanation:
x=1 + 5 is six
y=8
8 > 6
8 > 1
i think that's right lol
Focus Question: How do you determine whether a real-world context should be
represented by a linear function or an exponential function?
Answer:
Simplify the equation as closely as possible to the form of y = mx + b. Check to see if your equation has exponents. If it has exponents, it is nonlinear (exponential). If your equation has no exponents, it is linear.
Cuantos metros de valla necesitare para cercar una finca cuadrada de 54,3 de lado? por favor....
Answer:
217,2 m
Step-by-step explanation:
Si el lado de la finca mide 54,3 m y la finca es cuadrada entonces:
1.-El área de la finca es:
A = L²
Y el perimetro de un cuadrado es P = 4*L
Entonces
P = 4 * 54,3
P = 217,2 m
A rose bush grew from 24 inches to 36 inches in two weeks. What was the percent increase?
Answer:
50 percent increase
Step-by-step explanation:
Answer:
50% increase
Step-by-step explanation:
36-24=12
12/24=.50
To be a member of the choir, you must go to an audition. Henry's cousin is a member of the choir. What conjecture can you make about Henry's cousin?
A.) Henry’s cousin practices with the choir
B.) Henry’s cousin has a good singing voice
C.) Henry is in the choir
D.) Henry’s cousin went to an audition
Answer:
Henry's cousin has a good singing voice
Step-by-step explanation:
Answer:
D: Henry’s cousin went to an audition.
Step-by-step explanation:
I took the test