Answer:
Which function has an inverse that is also a function? a {(–1, 3), (0, 4), (1, 14), (5, 6), (7, 2)} b {(–1, 2), (0, 4), (1, 5), (5, 4), (7, 2)} c {(–1, –2), (0, 4), (1, 3), (5, 14), (7, 4)} d {(–1, 4), (0, 4), (1, 2), (5, 3), (7, 1)}
Step-by-step explanation:
It is called the inverse or reciprocal function of f to another function f − 1 that fulfills that:
If f (a) = b, then f − 1 (b) = a.
The inverse of a function when it exists is unique, so that neither "X" nor "Y" can be repeated.
If we analyze the possibilities, in the case of b, c, and d, the value 4 of the "Y" is repeated twice; in the case of a, that does not happen, therefore the answer is: a {(–1, 3), (0, 4), (1, 14), (5, 6), (7, 2) }
If i is raised to an even power, then it can not simplify to be
a. -1
b. 1
c. i
William Right broke his leg in an accidental fall. He has a deductible of $150 and a coinsurance payment equal to 20% percent of the cost less the deductible. The entire bill for medical services was $750.00.
How much did William pay? $
How much did the insurance company pay? $
We know that William
paid his deductible that amount is the $150.
Then William paid 20 percent of everything else. That's 20 percent of (750
minus 150), it is equal to 150.
Then the insurance company paid 80 percent of (750 minus 250), it is equal to
480.
Answer:
its is he payed 270 and insurance payed 480
Step-by-step explanation:
just simply add up the numbers to 750 and the only ones that go together are 270 + 480 = 750 hope it helps :)
4,126 rounded to the nearest ten
You drove to your cousin's house, which is 460 miles away. After two hours, you had go e 100 miles. After 8 hours, you reached your destination. Write an equation that gives the number of miles you had driven, y, in germs of the number of hours you had driven, t.
To express the number of miles driven, y, in terms of the number of hours driven, t, we first find the speed and then use it to formulate the equation of the line as y = 60t. However, to accurately represent the entire trip, we must include the initial 100 miles driven in 2 hours, leading to y = 60t - 20 as the final equation.
To write an equation that gives the number of miles driven, y, in terms of the number of hours driven, t, we can use the relationship between distance and travel time. Given that after two hours you had gone 100 miles and after 8 hours, you reached your destination, which is 460 miles away, we establish two points on our distance-time graph: (2, 100) and (8, 460).
Using the two points, we can find the slope of the line, which represents the speed:
Slope (speed) = (change in distance) / (change in time) = (460 - 100) miles / (8 - 2) hours = 360 miles / 6 hours = 60 miles/hour.
We can now express the equation of the line as y = mx + b, where m is the slope and b is the y-intercept. The y-intercept represents the distance at time zero, which for most driving scenarios we assume to be 0 miles. Thus, the equation becomes y = 60t. However, this equation would not accurately represent the entire trip since it doesn't account for the initial 100 miles driven in the first 2 hours.
To adjust for that, we'll introduce an offset for the initial 100 miles traveled in the first 2 hours. The y-intercept would be 100 miles less than if we had started from 0 miles at 0 hours. The corrected equation for the entire trip would be of the form y = 60t + b, where b = y - 60t and y are the miles covered in the initial 2 hours, which is 100 miles. Substituting the values, we get b = 100 - 60 x 2 which equals -20.
The final equation, accounting for the first 2 hours of travel, would therefore be: y = 60t - 20.
Lane's arm span is 61 inches. If his height is 1⁄4 foot longer than his arm span, how tall is he?
1 foot = 12 inches
1/4 foot = 12/4 = 3 inches
61 +3 = 64 inches tall ( 5 ft 4 inches)
Anyone know the answers for #8 and #9?
I need to know the three points of inflection
One of the zeros of the polynomial function is 2.
f(x)=x4−3x3−23x2+75x−50
What is the factored form of the function?
f(x)=(x−5)(x+5)(x−2)2f(x)=(x−5)(x+5)(x−2)(x−1)f(x)=(x−5)(x+5)(x−2)(x+1)f(x)=(x−5)(x+5)(x−1)2
Answer:
Heres the correct answer. Hope this helps anyone who needs it!!!
Step-by-step explanation:
The polynomial function is one that involves only non-negative number powers of x, unlike a polynomial, cubic, or quartic function, and further calculation can be defined as follows:
Given:
[tex]\bold{f(x)=x^4-3x^3-23x^2+75x-50}[/tex]
To find:
Solution:
[tex]\to \bold{f(x)=x^4-3x^3-23x^2+75x-50}[/tex]
Let [tex]\bold{x=2}[/tex]
[tex]\to \bold{f(2)=2^4-3(2)^3-23(2)^2+75(2)-50}\\\\\to \bold{f(2)=16-3(8)-23(4)+75(2)-50}\\\\\to \bold{f(2)=16-24-92+150-50}\\\\\to \bold{f(2)=166-166}\\\\\to \bold{f(2)=0}\\\\[/tex]
So the factor is [tex]\bold{(x-2)}[/tex].
[tex]\to \bold{(x-5)(x-2)(x-1)(x+5)}\\\\[/tex]
Therefore, the final answer is "[tex]\bold{ f(x)=(x-5)(x-2)(x-1)(x+5)}\\\\[/tex]".
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jase farm has 9 chickens each laid 3 eggs, he also has 4 horses. ednas farm has chickens which laid a total of 23 eggs, jase wonders whose chickens laid more eggs. What is a good plan to find whose chickens laid more eggs?
Jase's chickens laid more eggs.
From the information given, Jase farm has 9 chickens and each laid 3 eggs, therefore the total eggs laid will be:
= 9 × 3
= 27 eggs.
On the other hand, Ednas farm has chickens which lay a total of 23 eggs. Therefore, since 27 eggs are more than 23 eggs, Jase's chickens laid more eggs.
In conclusion, Jase's chickens laid more eggs.
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is a trapezoid a kite
How do you take the limit of this
The limit of the function lim x → ∞(x⁴ - 9x² + x)/(x³ - x + 6) is DNE
To take the limit of the function lim x → ∞(x⁴ - 9x² + x)/(x³ - x + 6), we proceed as follows
Since we have the function lim x → ∞(x⁴ - 9x² + x)/(x³ - x + 6) and we want to take the limit, we proceed thus,.
First, we divide both the numerator and denominator by x⁴. So,
lim x → ∞(x⁴ - 9x² + x)/(x³ - x + 6) = lim x → ∞(x⁴ - 9x² + x)/x⁴ ÷ (x³ - x + 6)/x⁴
= lim x → ∞(x⁴/x⁴ - 9x²/x⁴ + x/x⁴ ÷ (x³/x⁴ - x/x⁴ + 6/x⁴)
= lim x → ∞(1 - 9/x² + 1/x³ ÷ (1/x - 1/x³ + 6/x⁴)
Now, taking the limit as x tends to infinity, we have that
= lim x → ∞1 - lim x → ∞9/x² + lim x → ∞1/x³ ÷ lim x → ∞1/x - lim x → ∞1/x³ + lim x → ∞6/x⁴
= (0 - 9/∞² + 1/∞³)/(1/∞ - 1/∞³ + 6/∞⁴)
= (0 - 9/∞ + 1/∞)/(1/∞ - 1/∞ + 6/∞)
= (∞ - 0 + 0)/(0 - 0 + 0)
= (∞)/(0)
= DNE
if you flip the graph of the exponential function f(x)=2x over the x axis what is the equation of the new function
Answer:
Option: B is the correct answer.
The equation of the new function g(x) on flipping the function f(x) over the x-axis is:
[tex]g(x)=-2^x[/tex]
Step-by-step explanation:
We are given a graph of the exponential function f(x) which is represented by:
[tex]f(x)=2^x[/tex]
We know that when a graph of a function is reflected or flipped over the x-axis then the the change that take place to the function is that f(x) is transformed to -f(x).
( Since on flipping the function over the x-axis the positive value of the function get changed to negative and the negative value of the function is changed to positive)
Hence, the equation for the new function is:
[tex]g(x)=-f(x)\\\\g(x)=-2^x[/tex]
Simplify or compute : a times a times a divided by 3a
Assign point_dist with the distance between point (x1, y1) and point (x2, y2). the calculation is: distance = squarerootof( (x2 - x1)2 + (y2 - y1)2 ). sample output for the given program:
The program is an illustration of functions
Functions are collections of defined program statements, that are executed when evoked
The program in Python, where comments are used to explain each line is as follows:
#This imports the math module
import math
#This defines the function
def calculateDistance(x1,y1,x2,y2):
#This calculates the distance between the points
dist = math.sqrt((x2 - x1)**2 + (y2 - y1)**2)
#This returns the calculated distance
return dist distance
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A line has a slope of mc013-1.jpg and passes through the point (–5, 4). Which is the equation of the line?
Answer:
y = [tex]\frac{-3x}{4}[/tex] + [tex]\frac{1}{4}[/tex].
Step-by-step explanation:
Given : Graph of slope [tex]\frac{-3}{4}[/tex] and passes through the point (–5, 4).
To find : Which is the equation of the line.
Solution : we have given that point ( -5 ,4)
By equation of line ([tex]y-y_{1}) = m (x -x_{1})[/tex]
y - 4 = [tex]\frac{-3}{4}[/tex]( x +5).
y - 4 = [tex]\frac{-3x}{4}[/tex] +[tex]\frac{-15}{4}[/tex].
On adding 4 both sides we get,
y = [tex]\frac{-3x}{4}[/tex] + [tex]\frac{-15}{4}+4[/tex].
y = [tex]\frac{-3x}{4}[/tex] + [tex]\frac{-15 +16}{4}[/tex].
y = [tex]\frac{-3x}{4}[/tex] + [tex]\frac{1}{4}[/tex].
Therefore, y = [tex]\frac{-3x}{4}[/tex] + [tex]\frac{1}{4}[/tex].
24=6−2(2n+3) What value on n makes the equation true?
When referring to the normal probability distribution, there is not just one; there is a "family" of normal probability distributions?
Final answer:
There is a family of normal probability distributions, each representing different populations or sets of data with varying mean and standard deviation values.
Explanation:
Yes, there is a family of normal probability distributions. The normal distribution is a continuous probability distribution that can take on different forms depending on the mean and standard deviation. The family of normal distributions is characterized by different mean and standard deviation values, which result in different shapes of the distribution curve.
For example, the standard normal distribution has a mean of 0 and a standard deviation of 1, and its curve is symmetrical around the mean. Other normal distributions may have different means and standard deviations, resulting in curves that are shifted or stretched.
Each normal distribution in the family represents a different population or set of data, and knowing the specific mean and standard deviation allows us to calculate probabilities and make statistical inferences.
Vinny auto repair charges $75 an hour for labor plus the cost of parts. Mr sellners car was repaired and repaired $50 worth of parts and h hours of labor. The total cost,C, to repair the car is modeled by this function.
C(h)=75h+50
The total cost to repair the car was $650. How many hours of labor were required?
Select the correct answer below.
A.8hours
B.8 2/3 hours
C.9 1/3hours
D.13 hours
PLEASE HELP!!!!! I DONT UNDERSTAND!!!! :(
A city's population is represented by the function P=25,000(1.0095)t , where t is time in years.
How could the function be rewritten to identify the daily growth rate of the population?
What is the approximate daily growth rate?
Suppose the graph of a line has a negative slope and a positive y-intercept. Through which quadrants does the line pass?
If I spoke with 800 customers in 40 hours how many customers did I speak to every 30 minutes
Answer:
10 customers were spoken to in every 30 minutes
Step-by-step explanation:
First, we convert 40 hours into minutes by multiplying it with 60 [as 1 hour = 60 minutes]
So, 40 hours = 40*60 minutes
= 2400 minutes
In 2400 minutes, number of customers served = 800
In 1 minute, number of customers served = [tex]\frac{800}{2400}[/tex]
In 30 minutes, number of customers served = [tex]\frac{800}{2400}*30[/tex]
= [tex]\frac{800}{2400} * \frac{30}{1}[/tex]
= [tex]\frac{800*30}{2400*1}[/tex]
= [tex]\frac{24000}{2400}[/tex]
= 10
So,
10 customers were spoken to in every 30 minutes
Final answer:
You spoke with 10 customers every 30 minutes.
Explanation:
To find out how many customers you spoke to every 30 minutes, we can set up a proportion. We know that you spoke with 800 customers in 40 hours, which is equivalent to 2400 minutes. So, the proportion is:
800 customers / 2400 minutes = x customers / 30 minutes
Now, we can cross-multiply and solve for x:
800 * 30 = 2400 * x
x = 800 * 30 / 2400
x = 10
Therefore, you spoke with 10 customers every 30 minutes.
Fill in each blank with the correct word to complete the sentence. The rules of the order of operations tells you to multiply and divide in order from _________ to ______
The rules of the order of operations tells you to multiply and divide in order from left to right.
What is multiplication?Multiplication is an operation that represents the basic idea of repeated addition of the same number. The numbers that are multiplied are called the factors and the result that is obtained after the multiplication of two or more numbers is known as the product of those numbers.
The order of operations can be remembered by the acronym PEMDAS, which stands for: parentheses, exponents, multiplication and division from left to right, and addition and subtraction from left to right. There are no parentheses in this problem, so start with exponents. Then, multiply and divide from left to right.
Hence, the rules of the order of operations tells you to multiply and divide in order from left to right.
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write an algebraic expression that models the word phrase.
the product of 8 and the sum of a number x and 3
what is the greatest common factor for 5 4 and 2
The equation of this type of line is y = kx. What is special about k?
Answer:
C
Step-by-step explanation:
k is the slope of the line
The equation of the line is y = kx. Therefore, the special thing about k is that it is the slope of the line.
Equation of a lineUsing a slope intercept equation,
y = kx + b
where
k = slope of the lineb = y-interceptTherefore, the y-intercept of the line y = kx is zero.
What is special about k is that it is the slope of the line y = kx.
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Write the equation of the line containing the point (3, –2) and having a slope of 2 in slope-intercept form.
The equation of a line containing the point (3, –2) and having a slope of 2, is y = 2x-8
What is an equation of a line?The general equation of a line in two variables of the first degree is represented as Ax + By +C = 0, A, B ≠ 0 where A, B and C are constants which belong to real numbers. When we represent the equation geometrically, we always get a straight line.
Given that a line containing the point (3, –2) and having a slope of 2, we need to find the equation of the line,
So, the general equation of a line is y = mx+c
Where, m is the slope and c is the y-intercept.
Therefore,
y = 2x+c
Now, put x = 3 and y = -2 in the equation to find the value of c,
-2 = 3(2)+c
-2 = 6+c
c = -8
Put the value of c in the equation,
y = 2x-8
Hence, the equation of a line containing the point (3, –2) and having a slope of 2, is y = 2x-8
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What is the equation of the line that is perpendicular to the given line and has an x-intercept of 6?
y = –3/4x + 8
y = –3/4x + 6
y =4/3 x – 8
y= 4/3x - 6
Step 1
Find the slope of the given line
Let
[tex]A(-4,4)\ B(4,-2)[/tex]
we know that
the slope between two points is equal to
[tex]m=\frac{y2-y1}{x2-x1}[/tex]
substitute the values
[tex]m=\frac{-2-4}{4+4}[/tex]
[tex]m=\frac{-6}{8}[/tex]
[tex]m=-\frac{3}{4}[/tex]
Step 2
Find the slope of the line perpendicular to the given line
we know that
if two lines are perpendicular
then
the product of their slopes is equal to minus one
so
[tex]m1*m2=-1[/tex]
we have
[tex]m1=-\frac{3}{4}[/tex] ------> slope of the given line
Find the value of m2
[tex]m2=-1/m1[/tex]
substitute
[tex]m2=-1/(-3/4)[/tex]
[tex]m2=\frac{4}{3}[/tex]
Step 3
Find the equation of the line
we know that
the equation of the line into point-slope form is equal to
[tex]y-y1=m(x-x1)[/tex]
we have
[tex]m=\frac{4}{3}[/tex]
x-intercept is equal to [tex]6[/tex] --------> is the point [tex](6,0)[/tex]
substitute in the formula
[tex]y-0=\frac{4}{3}(x-6)[/tex]
[tex]y=\frac{4}{3}x-8[/tex]
therefore
the answer is the option
[tex]y=\frac{4}{3}x-8[/tex]
what is the unit rate of 1/5 and 1/4
The graph below represents the price of sending video messages using the services of a phone company. What is the constant of proportionality?
A summer camp has divided its campers into 8 groups of 9 campers.How many campers are at the summer camp?