Answer:
Step-by-step explanation:
Stop cheating and then lying to yourselfpf and saying that you need help
Doug bought a new car for $25,000. He estimates his car will depreciate, or lose value, at a rate of 20% per year. The value of his car is modeled by the equation V = P(1 – r)t, where V is the value of the car, P is the price he paid, r is the annual rate of depreciation, and t is the number of years he has owned the car. According to the model, what will be the approximate value of his car after 4 and one-half years?
$2,500
$9,159
$22,827
$23,791
Answer:
Step-by-step explanation:
The equation actually looks like this
\(V=P(1-r)^t\) and filling in the info given:
\(V=25,000(1-.2)^{4.5\) which simplifies to
\(V=25,000(.8)^{4.5\)
Orders of operation tells us that we need to take care of the exponential stuff first, so
V = 25,000(.3663573) and
V = $9158.93 which rounds to what is shown as the second choice down: $9,159.
Answer:
B
Step-by-step explanation:
$9159
The owner of the local sporting goods store is offering a 40% discount on one regular priced item. If a customer receives a discount of $8, what is the regular price of the item?
Answer:
I think the answer would be D. 20 hope it helps
Step-by-step explanation:
grear tire company has produced a new tire with an estimated mean lifetime mileage of 33,500 miles. management also believes that the standard deviation is 3,500 miles and that tire mileage is normally distributed. to promote the new tire, grear has offered to refund some money if the tire fails to reach 30,000 miles before the tire needs to be replaced. specifically, for tires with a lifetime below 30,000 miles, grear will refund a customer $1 per 100 miles short of 30,000. (a) for each tire sold, what is the average cost of the promotion (in $)? (use at least 1,000 trials. round your answer to two decimal places.) $ (b) what is the probability that grear will refund more than $25 for a tire? (use at least 1,000 trials. round your answer to three decimal places.)
a) The average cost of the promotion is $0.01 per tire.
b) The probability that Greer will refund more than $25 for a tire is 0.9
According to the Question:
Greer Tire Company has:
Lifetime mileage = 33500
Standard Deviation = 3500 miles
a)
Meal lifetime mileage : $33,500
Standard deviation of mileage $3,500
Observed miles 30,000 miles
100 miles failed $1.00
Hence :
The average cost of the promotion:
= (33,500 – 30,000) / 3500
= 3500 /3500
= 1
Therefore,
Cost of production
100 miles = $1.00
= 1 * 1 / 100
= $0.01 per tire
b)
P (z < 25000 -33500/ 3500
= P (z < -8500/ 3500)
= z < -2.4
Hence:
= 1 - 0.1
= 0.9
Therefore, the Probability that gear will refund more than $25.00 per tire is: 0.9
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Question 5 of 5
Select the correct answer.
Which of these tables represents a function?
Answer:
the answer is w
Step-by-step explanation:
the answer to that question is w
Answer: y
Step-by-step explanation:
there can not be two of the same number in the x row
what determines the range of a function?
Answer:
all possible y values
Step-by-step explanation:
any y value that goes in the function is in the range , an easier way to determine that would be using graphs.
Please help!
Provide an appropriate response and show your work. Assume that the random variable X is normally distributed, with mean=90 and standard deviation=12. Compute the probability P(57 < X < 105).
The probability that X is between 57 and 105 is 0.8914.
How to solveGiven:
* X is normally distributed with mean=90 and standard deviation=12
* P(57 < X < 105)
Solution:
* Convert the given values to z-scores:
* z = (X - μ) / σ
* z = (57 - 90) / 12 = -2.50
* z = (105 - 90) / 12 = 1.25
* Use the z-table to find the probability:
* P(Z < -2.50) = 0.0062
* P(Z < 1.25) = 0.8944
* Add the probabilities to find the total probability:
* P(57 < X < 105) = 0.0062 + 0.8944 = 0.8914
Therefore, the probability that X is between 57 and 105 is 0.8914.
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Fifty identical balls are numbered 1 through 50 and placed in a bucket. Then, a ball is randomly selected from the bucket. Select a decimal for each blank to make the sentence true.
Answer:
Blank 1: 0.12
Blank 2: 0.18
Step-by-step explanation:
Out of 50, there are 6 numbers that contain the digit 5, (5, 15, 25, 35, 45, 50)
so when you take 0.06 and multiply it by 2 (because you have to multiply 50 by 2 to get 100), you get 0.12.
For blank 2, there are 9 single digit numbers, (1, 2, 3, 4, 5, 6, 7, 8, and 9) equaling 0.09. Multiply that by 2 and you get 0.18.
What is the world record for digits of pi memorized?.
The world record for memorizing and reciting the most digits of pi is held by Rajveer Meena from India. He recited 50,000 decimal places of pi in 2020, which is the current recognized world record.
Pi (π) is a mathematical constant that represents the ratio of a circle's circumference to its diameter. It is an irrational number, which means it cannot be expressed as a finite decimal or a fraction. The decimal representation of pi is non-repeating and goes on indefinitely without a pattern. The value of pi is approximately 3.14159, but it is commonly approximated as 3.14 for simplicity in mathematical calculations. However, the exact value of pi has been calculated to trillions of digits using various computational methods. The quest to calculate more digits of pi continues to this day, and the computation of pi serves as a benchmark for testing the performance of supercomputers and computational algorithms. The current record for calculating the most digits of pi is trillions of digits, achieved through the use of powerful computers and advanced algorithms.
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A plumber charges $50 to make a house call. He also charges $25.00 per hour for labor. What is the slope in this
situation?
\(\text{t = total}\)
\(\text{equation:} \ t = 25x + 50\)
\(m=25\)
\(\text{The slope is} \ \bold{25}\)
why is 3 1/2 multipiled by x in the equation
Answer:
I don't know the equation, but I will assume that 3 1/2 is the slope.
Step-by-step explanation:
For example, in the equation y = 10x - 9, the slope is 10.
Answer:
3 1/2 x is multiplied by x In the equation because it is the coefficient, the number being multiplied by the variable
Step-by-step explanation:
What is 4000*800I need help math
Answer:
3200000
Step-by-step explanation:
4000*800 is 3200000
1/3y = 4 5/6
the options are
a. 1 11/8
b. 4 5/18
c. 12 5/6
d. 14 1/2
when the second hand moves from halfway between the 1 and the 2 to 4/5 of the way from the 1 to the 2 what is the measure of the arc
The second hand moves 6 degrees in one second, it will take it: 294/6 = 49 seconds to move from halfway between 1 and 2 to 4/5 of the way from 1 to 2.
The measure of the arc is 144 degrees.
When the second hand of the clock moves from halfway between the 1 and the 2 to 4/5 of the way from the 1 to the 2, it moves a total of 144 degrees.
This can be calculated as follows: The second hand of a clock completes one full revolution every 60 seconds or 1 minute.
This means that in 1 second, it moves 360/60
= 6 degrees.
To find the measure of the arc when the second hand moves from halfway between the 1 and the 2 to 4/5 of the way from the 1 to the 2, we need to find the difference between the two positions in degrees.
The position halfway between the 1 and the 2 is 1.5 on the clock face.
This is equivalent to 45 degrees (since the clock face is divided into 12 hours, each hour marking is 30 degrees apart, so halfway between 1 and 2 is 30+15 = 45 degrees).
4/5 of the way from the 1 to the 2 is 4/5 x 30 = 24 degrees from the 1 mark.
Therefore, the total angle between halfway between 1 and 2 and 4/5 of the way from 1 to 2 is:
24 + (360 - 45)
= 339 degrees.
However, we need to find the difference between these two positions, not the total angle.
Therefore, we need to subtract the position of the second hand at halfway between 1 and 2 from the position at 4/5 of the way from 1 to 2:
339 - 45
= 294 degrees.
Since the second hand moves 6 degrees in one second, it will take it:
294/6 = 49 seconds to move from halfway between 1 and 2 to 4/5 of the way from 1 to 2.
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WILL MARK BRAINLIEST AND 5 STARS!!!!!
1) 2/1
2) 0
3)1/2
............
Find the product. −3y2(−5y3 + y − 6)
How do you calculate F G and G of f?
You will be calculate the function F(G) = f(g(x)) and G(F) = g(f(x)).
What is function ?
A function is a kind of rule that, for one input, it gives you one output. Image source: by Alex Federspiel. An example of this would be y=x2. If you put in anything for x, you get one output for y. We would say that y is a function of x since x is the input value.
Have given ,
Two functions , f(x) and g(x)
The composition of two functions g and f is the new function we get by performing f first, and then performing g. For example, if we let f be the function given by f(x) = x2 and let g be the function given by g(x) = x + 3, then the composition of g with f is called gf and is worked out as gf(x) = g(f(x)) .
So , You will be calculate the function F(G) = f(g(x)) and G(F) = g(f(x)).
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Cameron is 5 ft tall and casts a 12 ft shadow. At the same time of day, a nearby
building casts a 78 ft shadow. How tall is the building? Hint: Make a sketch and label all
measurements first.
Answer:
the building would be 32.5 feet tall.
Step-by-step explanation:
Please Help
The expression represents the distance in feet an object falls after seconds. The object is dropped from a height of 906 feet.
What is the height in feet of the object 2 seconds after it is dropped?
Write an expression representing the height of the object in feet seconds after it is dropped.
Answer:
\(842\ \text{ft}\)
\(y(t)=906-16t^2\)
Step-by-step explanation:
Let \(y\) be the height the object from the ground.
\(s\) be the initial height of the object = 906 ft
\(u\) = Initial velocity = 0
\(g\) = Acceleration due to gravity = \(32\ \text{ft/s}^2\)
\(t\) = Time
The expression would be
\(y(t)=s-ut-\dfrac{1}{2}gt^2\\\Rightarrow y(t)=906-16t^2\)
The required expression is \(y(t)=906-16t^2\)
At \(t=2\ \text{s}\)
\(y(2)=906-16\times 2^2\\\Rightarrow y(2)=842\ \text{ft}\)
The height of the object after 2 seconds of falling is \(842\ \text{ft}\).
in the diagram below given that xy=3cm,xyz=30and yz=x solve for x
Answer:
i guess you'll get that answer
Step-by-step explanation:
if xy is 3cm then y is 3 divide by 2
where y=
then if xyz=30 to get z you divide 30 by 3
where z=
then x will surely be the same value as y
so u solve for yz=x
Uh yeah someone please help with 2-7 pleaseee
Answer:
2. 2.9x10^-10 3. 4.16x10^17 4. 2x10^3/2000 5. 8.85x10^10 6. 6x10^7
7. 2.496 x 10^13
Step-by-step explanation:
Question 7 (Yes/No Worth 1 points)
(02.01 LC)
Is the following relation a function?
((3, 2), (3,-2), (1.-4). (-1, 2))
O Yes
O NO
No, the given relation {(3, 2), (3, −2), (1, −4), (−1, 2)} is not a function.
The given relation is ((3, 2), (3,-2), (1.-4). (-1, 2)).
We need to check whether the given relation is a function.
What makes a relation a function?
A function is a relation in which the input values have a unique out value. This means that the output value is only related to that particular input value.
We can determine whether the given relation is a function as follows:
A function is a relation in which the input values have a unique out value. This means that the output value is only related to that particular input value.
But, we can see that in the ordered pairs (3, 2) and (-1, 2) that the output values aren't unique. This means that the relation is not a function.
No, the given relation {(3, 2), (3, −2), (1, −4), (−1, 2)} is not a function.
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What number should be added to both sides of the equation to complete the square? x2 + 8x = 4
Answer:
2 x 2+ 8 x 0= 4
Step-by-step explanation:
Answer:
c.16
hope this helps some one, have a nice day :)
Step-by-step explanation:
i just took the quiz and got it correct
I need some help answering some fractions.
Could you please help me.
Thanks the questions are on the image attached below:
3/2 + (-6/5) reduce to simplest form
There are 801 students in the
school. 4/9 of the total number of
students are boys. The rest are
girls. How many more girls are there than boys?
than boys?
Answer:
89 more boys than girls
Step-by-step explanation:
801 * 4/9 = 356
So 356 boys
rest are girls so 801-356 = 445 girls
445-356 = 89
89 more boys than girls (there are more boys but question says there are more girls?)
What is the value of x-9 if x = -24?
A. 33
B. 15
C. -15
B. -33
Answer:
D
Step-by-step explanation:
don't forget to follow rate like
Answer:
The second B) - 33
Step-by-step explanation:
-24 - 9 = -33.
find the radius of convergence, r, of the series. [infinity] 8(−1)nnxn n = 1
The radius of convergence of the given series is 1. The series is an alternating series, which means that we can apply the Alternating Series Test to determine the convergence of the series. The ratio test can also be used to show that the radius of convergence is indeed 1.
The given series can be written as:
∞
Σ 8(-1)^n n x^n
n=1
To find the radius of convergence, we can use the Alternating Series Test, which states that if a series is alternating (i.e., the signs of its terms alternate), decreasing, and its limit as n approaches infinity is 0, then the series converges.
In this case, the series is alternating because the signs of its terms alternate between positive and negative. To show that it is decreasing, we can take the derivative of the nth term with respect to x and show that it is negative for all n:
d/dx [8(-1)^n n x^n] = 8(-1)^n n^2 x^(n-1)
Since n^2 is always positive, the sign of the derivative is determined by (-1)^(n+1), which is negative for odd values of n and positive for even values of n. Thus, the series is decreasing for all x.
To show that the limit of the nth term as n approaches infinity is 0, we can use the ratio test. The ratio of the (n+1)th term to the nth term is:
|(8(-1)^(n+1) (n+1) x^(n+1)) / (8(-1)^n n x^n)| = |(-1)(n+1)x / n|
As n approaches infinity, this ratio approaches |-x|, which is less than 1 if |x|<1. Thus, the series converges for |x|<1.
Finally, we need to check the endpoints x=-1 and x=1 to see if the series converges at those points. At x=-1, the series becomes:
∞
Σ 8(-1)^n n (-1)^n
n=1
which is the alternating harmonic series, and we know that it converges to ln(2).
At x=1, the series becomes:
∞
Σ 8(-1)^n n
n=1
which diverges because the nth term does not approach 0 as n approaches infinity.
Therefore, the radius of convergence is 1, and the series converges for -1 < x ≤ 1.
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you randomly choose one shape from the bag. find the number of ways the event can occur. find the favorable outcomes of the event
(a) The number of ways that the event can occur is 6.
(b) Probabilities are :
1) 1/2, 2) 1/6 and 3) 1/3.
(a) Given a bag of different shapes.
Total number of shapes = 6
So, if we select one shape from random,
total number of ways that the event can occur = 6
(b) Number of squares in the bag = 3
Probability of choosing a square = 3/6 = 1/2
Number of circles in the bag = 1
Probability of choosing a circle = 1/6
Number of stars in the bag = 2
Probability of choosing a star = 2/6 = 1/3
Hence the required probabilities are found.
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Which of the following descriptions apply to the transformation? Select all that are correct. The graph with X-coordinate marks -4, -2, 0, 2, 4 and Y-coordinate mark -4, -2, 0, 2, 4. There is polygon ABCD with Coordinates A at (2, 4), B at (4, 4), C at (5, 2) and D at (2, 1) in quadrant 1 and polygon A'B'C'D' with coordinates A' at (-4, -2), B' at (-2,-2), C' at (-1, -4), D' at (-4, -4) in third quadrant. A. T⟨–6,–6⟩ B. 6 units down; 6 units left C. 6 units up; 6 units right D. T⟨6, 6⟩
Answer:b,d,a
Step-by-step explanation:
please help im struggling
Answer:
a = 6
b = 3
c = 2
Step-by-step explanation:
Since n(P) = a+b = 9
and n(Q) = b+c = 5
and b is given to be 3
a and b follow easily.
a is 9-b = 9-3 = 6
c is 5-b = 5-3 = 2