How do you verify inverses algebraically?

Answers

Answer 1

Answer:

Let f be a function. If any horizontal line intersects the graph of f more than once, then f does not have an inverse. If no horizontal line intersects the graph of f more than once, then f does have an inverse.

Step-by-step explanation:


Related Questions

Find the x and y intercept.

Answers

slope: 3
yint: -4
hope this helps
The slope would simply be 3x

The y-int would be -4

Jonathan is working at Macy's for the holidays. He earns $22.00 in 2 hours.***. --Jonathan is hoping to work 82 hours in November. If he does, how much money would he earn? * PLZ HELP

Answers

Answer:

he would make $902

Step-by-step explanation:

22%2=11

82×11=902

Answer:

if he makes $22.00 in 2 hours he would make $11 in 1 hour. so if you take 82 times $11 it is $902 so he would earn $902 in 82 hours

Step-by-step explanation:

Find the resulting equation after distributive property and combining like terms. 2(4x + 3) + 3(5x + 1) = 4(3x + 5)​

Answers

8x + 6 + 15x + 3 = 12x + 20
23x + 9 = 12x + 20
11x - 11

11(x - 1)

i don’t know if this is right but i hope it helped

What kind of association is this? *
Postitive
Negative
No association

Answers

It's negative correlation because the dots are dropping in value.

A positive correlation starts in the bottom left corner and rises to the top right. While a negative correlation starts at the top left corner, and drops in value. No correlation has dots randomly placed throughout the graph and a line can't be drawn to represent the correlation.

 

10. Triangle DEF is formed by connecting the midpoints of the sides of triangle ABC. Select all true statements.​

Answers

Answer:

im smart right

Step-by-step explanation:

What is the following quotient?
6-3(3v6)/3v9

Answers

Answer:

I believe the answer is 2

Step-by-step explanation:

i think the answer is just two.

The perimeter of a polygon is 24 inches. Each side of the polygon is 3 inches long. What is the name of the polygon?

Answers

Answer:

Octagon; this is the answer

How do I solve this and get y?

Answers

Answer:

  y = (1 -3x)/x

Step-by-step explanation:

Rearrange terms to get an expression that has y as a multiplier, and divide by the coefficient of y.

  [tex]\dfrac{1+2xy}{y+1}=3x\qquad\text{given}\\\\1+2xy=3x(y+1)\qquad\text{multiply by $(y+1)$}\\\\1+2xy=3xy+3x\qquad\text{eliminate parentheses}\\\\1-3x=xy\qquad\text{subtract $(3x+2xy)$}\\\\\boxed{y=\dfrac{1-3x}{x}}\qquad\text{divide by the coefficient of y}[/tex]

The one selected is wrong please help meee!

Answers

Answer:

  (a)  ΔARS ≅ ΔAQT

Step-by-step explanation:

The theorem being used to show congruence is ASA. In one of the triangles, the angles are 1 and R, and the side between them is AR. The triangle containing those angles and that side is ΔARS.

In the other triangle, the angles are 3 and Q, and the side between them is AQ. The triangles containing those angles and that side is ΔAQT.

The desired congruence statement in Step 3 is ...

  ΔARS ≅ ΔAQT

could 90°, 30°, and 60° make a triangle?

yes or no

Answers

Answer:

Step-by-step explanation: A 30-60-90 triangle is a special right triangle whose angles are 30º, 60º, and 90º. The triangle is special because its side lengths are always in the ratio of 1: √3:2. Any triangle of the form 30-60-90 can be solved without applying long-step methods such as the Pythagorean Theorem and trigonometric functions.

Convert the following linear equation to function form: 6x-2y=18

Answers

Answer:

f(x)=-9+3x

Step-by-step explanation:

a hotel manager found that his gross receipts for the day, including a 6% sales tax, were $4965.04. find the amount of sales tax collected

Answers

Answer:

297.9024

297.9024

Step-by-step explanation:

you have the total amount is: 4965.04

297.9024Step-by-step explanation:you have the total amount is: 4965.04 and you have the percentage if the sales tax is 6% which is:

( the amount of sales tax / the total ) × 100%

now you can find the amount of sales tax by:

the amount of sales tax / 4965.04 = 6/100

after calculating the numbers you find that the amount of sales tax is= 297.9024

Questions
1. There are 30 students in a class: 16 boys and 14 girls. What is the probability that a boy will be chosen at random?
2. A bag contains 3 green marbles, 6 blue marbles and 6 red marbles. One marble is taken out of the bag at random.
What is the probability of choosing:
(1) a red marble?
a
(11)
a green marble?
3.
(a) What is the probability of choosing the letter B at random from the word ALPHABET?
+

Answers

Answer:

1. 8/15

2. Green marble: 3/15

    Red Marble: 6/15

     Blue marbles: 6/15

3. a 1/8

Answer:

1: 8/15

2: a: 2/5

 b: 1/5

3: 1/8

Step-by-step explanation:

1:

16/30 chance

simplify

8/15

2:

3 + 6 + 6 = 15

red: 6/15 --> 2/5

green: 3/15 --> 1/5

3:

1/8

PLEASE HELP I NEED THIS ANSWER QUICK

Answers

Answer:

A = 68 in^2

Step-by-step explanation:

A of Rectangle = 6 * 10 = 60 in^2

A of Triangle = (4 * 4)/2 = 8 in^2

A tailor wants to cut clothes of 8m 4m 12m what is the greatest possible length of tape which can be used to cut the clothes with exact number of times​

Answers

We have to find theHCF or GCF of 8,4,12
First prime factorize
8=2*2*2
4=2*2
12=2*2*3
HCF=2*2=4
Possible length of tape = 4m

one half of the number of roses Julia planted in her garden is 2/5 of the number of the tulips she planted. what is the ratio of the numbers of tulips to the number of roses in Julia's garden

Please help me like asap i really really need help and i literally don't know what to do

Answers

Answer:

t : r = 5 : 4

Step-by-step explanation:

Let the number of roses is r and tulips is t.

We have:

1/2r = 2/5t

To find the ratio of tulips to roses divide both sides by 2/5r:

1/2r : 2/5r = 2/5t : 2/5r1/2*5/2 = t : r5 : 4 = t : rt : r = 5 : 4

Put the following statements into order to prove that the modus ponens is a valid argument form. Not all steps are correct or belong in the proof. Enter N for such steps.
1. Since the disjunction of an expression and its negation is always true, is a tautology. This completes the proof.
2. By the domination law, the last expression is always true. This completes the proof.
3. Using the rule , we rewrite the given expression as
4. To prove the validity of the modus ponens, we need to show that is a tautology.
5.
6. To prove the validity of the modus ponens, we need to show that is a tautology.
7.
8. We now use one of the rules of De Morgan:
9.
10.
11. We now reorder and re-associate the terms of the last expression by using the associative and commutative laws and apply the rule again:
12.
13. Using the rule , we rewrite the given expression as
14.

Answers

The prove that the modus ponens is a valid argument form in correct order is

To prove the validity of the modus ponens, we need to show that (p 5 9) 5 4 is a tautology:

Using the rule p 4 q =7p ^ q, we rewrite the given expression as 13

Zp V-(p - 9) Vq = (~p V 9) ^ -(-p V9)

~(p ^ (p + 9)) Vq =-pV (p + 9) Vq 10

(p v q) - 4=-pv 9Vq

We now use one of the rules of De Morgan

By the domination law; the last expression is always true: This completes the proof

Using the rule p 7 q =7p V 4, we rewrite the given expression as 12

How to prove modus ponens

The complete question is given below:

1. ~p V -(p = q) Vq = (Tp Vq) v-(Tp V q)

2. Since the disjunction of an expression and its negation is always true, Zp V q) v-(-p V q) is a tautology: This completes the proof:

3. ~(p ^ (p + 9)) Vq =-pV (p + 9) Vq 10

4. Using the rule p 7 q =7p V 4, we rewrite the given expression as 12

5. ~(p ^ (p = 4) Vq =-pv-Wpv 9)Vq

6. To prove the validity of the modus ponens, we need to show that (p 5 9) 5 4 is a tautology:

7. We now reorder and re-associate the terms of the last expression by using the associative and commutative laws and apply the rule p v q = 7pV q again: N

8. To prove the validity of the modus ponens; we need to show that (p ^ (p 7 74 is a tautology:

9. (p v q) - 4=-pv 9Vq

10. Using the rule p 4 q =7p ^ q, we rewrite the given expression as 13

11. By the domination law; the last expression is always true: This completes the proof: 11

12 Zp V-(p - 9) Vq = (~p V 9) ^ -(-p V9)

13. We now use one of the rules of De Morgan:

14. (p ^ (p = 9)) - q =-(p ^ (p = 9)) V q

Learn more about proofing:

https://brainly.com/question/1788884

Tell whether c= -2 is a solution of the inequality: -4c ≥ 7

Answers

Answer: Yes it's a solution

We can check it by replacing c with -2 and simplifying

-4c ≥ 7

-4(-2) ≥ 7

8 ≥ 7

The last statement is true, so the original statement is true when c = -2. Therefore, c = -2 is a solution.

Morgan claims that the expression n + 2n + 3n - 6n simplifies to 0. Is she correct?

Answers

Answer:

I would say yes

Step-by-step explanation:

because if its just a number and they dont give another number you will replace it with 2 so...

n+2n+3n-6n

1+(2x1)+(3x1)-(6x1)

1+2+3-6

6-6=0

Which graph shows the system of equations:

2x+3y=5
4x−5y=−1

Answers

Answer:

THE FRIST ONE

!Step-by-step explanation:

Mrs. Gomez is buying a triangular table for the corner of her classroom. The side lengths of the table are 4 feet, 3 feet, and 2 feet

Is this a triangular table a right triangle?

Answers

Answer: Choice D

Reason: Refer to the converse of the pythagorean theorem. We need to have both sides equal to each other to have a right triangle. So we need to have [tex]a^2+b^2 = c^2[/tex] to be true. The longest side is the hypotenuse and the value of c.

Jon ran 4 miles in 35
minutes. How long did it
take him to run a mile

Answers

Answer:

35/4 minutes per mile

Step-by-step explanation:

rate = time/distance, therefore the answer is 35/4

Jenna manipulated the equation 4x + 7=10 by adding -7 to both sides.Which of the follolwing properties justifies this manipulation? ​

Answers

The addition property of equality justifies this. You could also say that she simply subtracted 7, and then it would be the subtraction property of equality. This is the case because if you add or subtract (or multiply or divide) the same number on both sides of an equation, the equation will still be the same.


Hope it helps!

Number 5. I know the answer is 76 but how is that supposed to be shown in a bar model with common core?

Answers

why show it in a bar model when you know the answer is 76, just put 76...

The linear function f(x)=-1/2x-6 has a y-intercept of:

Answers

if you plug in “0” for all x-values and solve for f(x) (or “y”), you will get -6;

therefore, the answer is b = -6

Pls I need an answer with explanation, do the steps on how you got the answers!!

Answers

Answer:

for the 1 one

Step-by-step explanation:

think it helps you

Estimate 4427 -3013 by first rounding each number to the nearest hundred.

Answers

Answer:

Step-by-step explanation:

Round the values to the nearest hundred.

4427 -> 4400

3013 -> 3000

Estimate:

4400 - 3000 = 1400

Answer:

1400

Step-by-step explanation:

4400-3000 = 1400

-7(2x+4)+6=7x+20
Solve for x

Answers

Answer:

x=1.8

Step-by-step explanation:

I need a little help here please

Answers

Answer:

Plot points at (0,1) and (-3,3) and draw a line going through both points.

Step-by-step explanation:

Let's start by graphing the y intercept.

y=mx+b

m is the slope. b is the y intercept. Since the equation is y=-2/3x+1, we can conclude the y intercept is 1. We graph a point at (0,1).

If you didn't know the y intercept is where the line intercepts the y-axis.

Now, from the point (0,1) we go up 2 and to the left 3 as it is a negative slope. We reach (-3,3). Plot a point there. Then draw a line going through both points. There's your line!

Simplify these expressions :

6t x 2s


5a + 2b + 6a – 2b



-4d2 x - 8d2




y + y + y



3(2e + 4)

Answers

Answer:

6e+12

I hope it's help

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Enguel27

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