Prove that () = + 5 and () = √ − 5 are inverse functions without finding the inverse of either function.
if two functions are inverse of each other, that means that their composite will result in "x" alone.
meaning, that if f(x) and g(x) are inverse of each other, then f( g(x) ) = x and the other way around will be the same, hmmm let's see if that's true
[tex]f(x)=x^3 + 5\hspace{5em}g(x)=\sqrt[3]{x-5} \\\\[-0.35em] ~\dotfill\\\\ f( ~~ g(x) ~~ )=[g(x)]^3 + 5\implies f( ~~ g(x) ~~ )=[\sqrt[3]{x-5}]^3 + 5 \\\\\\ f( ~~ g(x) ~~ )=(x-5) + 5\implies f( ~~ g(x) ~~ )=x ~~ \textit{\LARGE \checkmark} \\\\[-0.35em] ~\dotfill\\\\ g( ~~ f(x) ~~ )=\sqrt[3]{[f(x)]-5}\implies g( ~~ f(x) ~~ )=\sqrt[3]{[x^3 + 5]-5} \\\\\\ g( ~~ f(x) ~~ )=\sqrt[3]{x^3}\implies g( ~~ f(x) ~~ )=x ~~ \textit{\LARGE \checkmark}[/tex]
Please help heres a pic
The fourth arrow is used to represent inequality x>3.2
What is Number system?A number system is defined as a system of writing to express numbers.
Number line is a picture of a graduated straight line that serves as visual representation of the real numbers.
All the positive numbers are represented on the right side of the origin and all the negative numbers are represented on the left side of the origin, with a definite scale.
Here x>3.2 which means that values of x are greater than 3.2 so we use Open circle with right arrow.
Hence, the fourth arrow is used to represent inequality x>3.2
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n x 4/5 = 3/4 what is n
A. n = 1/2
B. n = 15/16
C. n = 1 2/3
resolve 75 = 15r. how do i resolve this
The value of r in the given expression is 5.
What is an expression?Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
We are given that the expression as;
75 = 15r
Now we need to find the value of r.
Therefore, we wil divide the 15 both side;
r = 75/ 15
r = 5
Hence, the value of r in the given expression is 5.
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Ingrid wants to buy a $20000 car in 8 years. How much money must she deposit at the end of each quarter in an account paying 5.9% compounded quarterly so that she will have enough to pay for her car?
Ingrid must deposit $402.74 at the end of each quarter for 8 years in order to have enough money to pay for her car.
A roofer creates a price quote to repair a
roof using shingles. Which is least likely to
affect the value of the price quote?
the estimated cost of the shingles
chosen for the roof
the estimated time to lay the
shingles and underlayment
the square footage of the front yard
and backyard
the square footage of the house and
garage
Answer:
Step-by-step explanation:
the estimated time to lay the shingles and underlayment
The Estimation cost of the shingles chosen for the roof.
What is Estimation cost?Estimation cost is the process of predicting how much a project or task will cost. It is used to help make decisions about the feasibility of the project and to plan for its budget. Estimation cost is based on past experiences, the current market and expected future conditions. The accuracy of an estimate can be improved by gathering detailed information about the project and its components. This information can include the cost of materials, labor and time needed to complete the project. Estimation cost is an important part of project management and is used in combination with other project management tools and methods such as scheduling, budgeting and risk management.
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kara divided 560.9 by 1000 and got a quotient of 0.5609. Kevin thinks the quotient of 0.5609. Who is correct
Answer:
both are correct
Step-by-step explanation:
theyre the same answer I think the questions wrong
13/7 + 3 2/3 solve the expression
this answer was wrong that i looked up on here please help
Answer: try quizlet
Step-by-step explanation:
Given h(x)=-x+1, find h(2)
Please Help me!!!!
just replace x with 2
h(x) = - x+ 1
find h(2):
h(2) = -2 + 1
h(2) = -1
15(2 x+3)+100=110-5x
30 x+45+100=110-5x
30 x+145=110-5x
35 x+145=110
35 x=-35
x=-1
Step-by-step explanation:
Reasons for each step
1. Distribute: 15(2x + 3) = 30x + 45
2. Combine Like Terms: 45+100 = 145
3. Addition Property of Equality: 30x+5x+145 = 110-5x+5x => 35x+145 = 110
4. Subtraction Property of Equality: 35x+145-145 = 110-145 => 35x = -35
5. Division Property of Equality: 35x/35 = -35/35 => x = -1
Given the table below, write a linear equation that defines the
dependent variable, c, in terms of the independent variable, a.
Someone help I’ll give brainliest only need the answer no need for steps
Answer:
c = -1.75a + 15
pla help.me with this question
Answer:
7. A
8. B
Step-by-step explanation:
7.
1 3
4 ------- - 2 -------
2 4
9 11
------- - -------
2 4
9(2) 11
------- - -------
2(2) 4
18 11 7 3
------- - ------- = ------- = 1 -------
4 4 4 4
----------------------------------------------------------------------------------------------------------
8.
3 3
13 ------- + 16 -------
8 4
107 67
------- + -------
8 4
107 67(2)
------- + -------
8 4(2)
107 134 241 1
------- + ------- = -------- = 30 -------
8 8 8 8
I hope this helps!
Find the perimeter of the shape made up of rectangles and squares
Answer: p = 45
Step-by-step explanation:
10 + 7 + 7 + 12 1/2 + 3 + 5 1/2
24 + 18 + 3
27 + 18 = 45
Given f(x) = -3x + 3, solve for x when f(x) = 9.
Answer:
Step-by-step explanation: x=-2. -3•-2=6+3=9
Brody and Qasim are both driving along the same highway in two different cars to a stadium in a distant city. At noon, Brody is 272 miles away from the stadium and Qasim is 320 miles away from the stadium. Brody is driving along the highway at a speed of 43 miles per hour and Qasim is driving at speed of 59 miles per hour. Let BB represent Brody's distance, in miles, away from the stadium tt hours after noon. Let QQ represent Qasim's distance, in miles, away from the stadium tt hours after noon. Write an equation for each situation, in terms of t,t, and determine the number hours after noon, t,t, when Brody and Qasim are the same distance from the stadium.
B= -43t +272 and Q=-59t+320 equations for each situation, in terms of t, and at 3 hours Brody and Qasim are the same distance from the stadium.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
Given,
At noon, Brody is 272 miles away from the stadium
B represent Brody's distance, in miles, away from the stadium tt hours after noon.
Brody is driving along the highway at a speed of 43 miles per hour
Qasim is 320 miles away from the stadium
Qasim is driving at speed of 59 miles per hour.
Q represent Qasim's distance, in miles, away from the stadium t hours after noon
B= -43t +272
Q=-59t+320
-43t+272=-59t+320
-43t+59t=320-272
16t=48
t=3
Hence, B= -43t +272 and Q=-59t+320 equations for each situation, in terms of t, and at 3 hours Brody and Qasim are the same distance from the stadium.
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How can the logarithmic expression be written?
Select True or False for each statement.
Answer:
False, True, False-------------------------------------------
Simplify the left side and compare if the answer matches the right side.
[tex]log_3\ v-4log_3\ w=log_3\ v-log_3\ w^4 \implies False[/tex][tex]log_4\ (n\sqrt{m})= log_4\ (nm^{1/2})=log_4\ n+log_4\ m^{1/2}=log_4 n+\frac{1}{2} \ log_4 \ m\implies True[/tex][tex]log_2\ (\cfrac{cd^3}{e^4} )=log_2\ c+log_2\ d^3-log_2\ e^4=log_2\ c+3log_2\ d-4log_2\ e\implies False[/tex]PLS HURRY DUE TOMMOROW!!!
1) Farmer John has cows and chickens on his farm. His farm animals have 120 legs and 48 heads total. How many cows and how many chickens are on the farm?
a. Setup a system, of two equations, to help you solve this riddle.
b. Solve this system using either Elimination or Substitution, show your work, and state your answer as a complete sentence.
The number of cows is 12 and number of chickens are 36.
What is a system of linear equation?A "system" of equations is a set or collection of equations that you deal with all together at once.
Given that, Farmer John has cows and chickens on his farm. His farm animals have 120 legs and 48 heads total.
Let the number of chickens be x and that of cows be y,
A cow has 4 legs and that of chickens have 2,
Setting the equations, we get,
2x+4y = 120
x+2y = 60
x+y = 48
Solving the equation by elimination, we get,
2y - y = 60 - 48
y = 12
Therefore, x = 36
Hence, The number of cows is 12 and number of chickens are 36.
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The number of total employees if there
are 150 employees that drive to work.
Answer:
150.
Step-by-step explanation:
If 150 total drive to work, then 150 work there....
May I have Brainliest please? My next rank will be the highest one: A GENIUS! Please help me on this journey to become top of the ranks! I only need 4 more brainliest to become a genius! I would really appreciate it, and it would make my day! Thank you so much, and have a wonderful rest of your day!
Consider a weighted voting system with three players. If n one has veto power, and no one is a dummy., find the Banzhof power distribution.
Player 1 ____
Player 2 ____
Player 3 ____
Give each value as a fraction or decimal.
The Banzhaf power distribution value in the fraction is,
Player 1: = 0.6
Player 2: = 0.2
Player 3: = 0.2.
What is the distribution?
The mathematical expression known as a distribution function expresses the likelihood that a system would adopt a certain value or range of values. The traditional examples include games of chance.
List of winning coalitions:
1. P1, P2, P3
2. P1, P2
3. P1, P3
No. of times P1 is critical = 3 (P1 is critical all 3 times as it has veto power)
No. of times P2 is critical = 1 (in the second coalition)
No. of times P3 is critical = 1 (in the third coalition)
Total no. of critical times = 3 + 1 + 1 = 5
Banzhof Power Distribution:
Player 1: No. of times P1 is critical/Total no. of critical times
= 3/5 = 0.6
Player 2: No. of times P2 is critical/Total no. of critical times
= 1/5 = 0.2
Player 3: No. of times P3 is critical/Total no. of critical times
= 1/5 = 0.2
Hence, the Banzhaf power distribution value in the fraction is,
Player 1: = 0.6
Player 2: = 0.2
Player 3: = 0.2
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Find the value of x.
The 7x side is half the length of the 28 side.
7x = 14
x = 2
PLEASE ANSWER
Carter and his children went into a movie theater and he bought $33 worth of drinks and candies. Each drink costs $4.50 and each candy costs $3. He bought 3 times as many drinks as candies. Determine the number of drinks and the number of candies that Carter bought.
The number of drinks and the number of candies that Carter bought are 6 and 2 respectively.
How to determine the number of drinks and candies?In order to determine the number of drinks and the number of candies that Carter bought, we would have to write a system of linear equation and assign variables to the number of drinks and number of candies respectively, and then translate the word problem into algebraic equation as follows:
Let the x indicate the number of drinks.Let the y indicate the number of candies.Since each drink costs $4.50 and each candy costs $3 and Carter bought 3 times as many drinks as candies;
x = 3y .......equation 1.
4.50x + 3y = 33 .......equation 2.
Substituting equation 1 into equation 2, we have:
4.50(3y) + 3y = 33
13.50y + 3y = 33
16.50y = 33
y = 33/16.50
y = 2 candies.
For the value of x, we have:
x = 3(2)
x = 6 drinks.
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Find WY.
W
8
X
39°
Y
Write your answer as an integer or as a decimal round
WY =
solve & check the linear equation
3(x-4) + 14=2(x+3)
Answer:
x = 4
Step-by-step explanation:
3(x - 4) + 14 = 2(x + 3)
3x - 12 + 14 = 2x + 6
3x + 2 = 2x + 6
-2x -2x
-----------------------
x + 2 = 6
-2 -2
---------------
x = 4
I hope this helps!
Linear Algebra question.
Answer:
ax + y = (21, -16, 29)
Step-by-step explanation:
ax + y = [(-6a + 3), (3a - 7), (-8a + 5)]
now,
-8a + 5 = 29
a = (29 - 5)/-8
a = -3
ax + y = [(-6)(-3)+3, 3(-3)-7, 29]
ax + y = (21, -16, 29)
If CB is the diamater...Find x:
Assuming [tex]\overline{BC}[/tex] is a diameter, minor arc [tex]AB[/tex] has a measure of [tex]180^{\circ}-108^{\circ}=72^{\circ}[/tex].
Using the inscribed angle theorem, [tex]36=x+3 \implies x=\boxed{33}[/tex].
Write an equation that represents the line. Use exact numbers.
Answer:
[tex]y=-\dfrac{1}{3}x+5[/tex]
Step-by-step explanation:
A line's slope is defined as rise over run.
The rise and run between the coordinates (0, 5) and (3, 4) is:
rise: -1
run: 3
Therefore, the slope of the line is -1/3. This is what x is multiplied by.
Next, to find what is added to x, find where the line crosses the y-axis. IN this case, that point is when y = 5, so in the second blank put 5.
“Benjamin Franklin was born in Milk Street, Boston, on January 6, 1706. His father, Josiah Franklin, was a tallow chandler [candle maker] who married twice, and of his seventeen children Benjamin was the youngest son. His schooling ended at ten, and at twelve he was bound apprentice to his brother James, a printer, who published the ‘New England Courant.’ To this journal he became a contributor, and later was for a time its nominal editor. But the brothers quarreled, and Benjamin ran away, going first to New York, and thence to Philadelphia, where he arrived in October, 1723.”
Which is the best summary of this excerpt?
Benjamin Franklin was born in 1706. He went to Philadelphia in 1723 after a fight with his brother.
Benjamin Franklin, born in Boston in 1706, was the youngest of his father’s seventeen children. He stopped going to school at age ten, and soon after started apprenticing for his brother James, a printer, who published the “New England Courant.” Franklin became a writer and editor for the paper, but left Boston for Philadelphia in 1723 after an argument with James.
Benjamin Franklin, born in 1706, lived in Boston, New York, and Philadelphia in his early life.
Benjamin Franklin was born in Boston in 1706. He was the youngest of his father’s seventeen children. His father, Josiah, was a candle maker. Franklin’s schooling ended at age ten, and at age twelve, he started apprenticing for his brother James, who published the “New England Courant.” After apprenticing, Franklin started contributing to the paper. Later, he became an editor.
Correct answer: Benjamin Franklin held different jobs at "New England Courant".
If V is the incenter of APQR, QT = 5, VO = 7, and PV = 29, find each measure.
Answer:
each measure 120
Step-by-step explanation:
Can someone explain how to find the answer
Let f = {(x, y) | x, y ∈ ℕ and y = 2x} be a relation on ℕ. Find the domain, co-domain and range. Is this relation a function? (2pts. )