1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ivann1987 [24]
3 years ago
9

I got A for both questions. Can I get confirmation?

Mathematics
1 answer:
Alexeev081 [22]3 years ago
6 0

Answer:  No. You reversed the domain and range

              #2) B) x ≥ 0

              #3) B) [0, ∞)

<u>Step-by-step explanation:</u>

#2 is asking about the domain, which is all of the x-values.

The graph appears to be touching the y-axis so it equals 0 and all other x-values are greater than zero. (0, 1), (1, 0), (2, -0.8), (3, -1.5), etc.  All of the x-values are moving toward the right, which is positive infinity.      --> x ≥ 0

#3 is asking for the range, which is all of the y-values.

The vertex is at (0, 0) and all other y-values are above zero (positive numbers), moving toward positive infinity.  --> [0, ∞)

You might be interested in
What are the zeros of the quadratic function f(x) = 2x2 – 10x – 3?
Ipatiy [6.2K]

Answer:

x = \frac{ 5 \ + \ \sqrt{31}}{2} \ , \ x = \frac{ 5 \ - \ \sqrt{31}}{2}

Step-by-step explanation:

2x^2 - 10x - 3 = 0 \\\\a = 2 \ , b = - 10 \ , \ c =  - 3 \\\\x = \frac{-b^2\  \pm \ \sqrt{b^2 - 4ac}}{2a}\\\\x = \frac{10 \ \pm \sqrt{(-10)^2 - ( 4 \times 2 \times -3)} }{2 \times 2}\\\\x = \frac{10 \ \pm \sqrt{(100 - ( -24 )} }{4}\\\\x = \frac{10 \ \pm \sqrt{(100 + 24 } }{4}\\\\x = \frac{ 10 \ \pm \sqrt{124}}{4}\\\\x = \frac{ 10 \ \pm \sqrt{4 \times 31}}{4}\\\\x = \frac{ 10 \ \pm \sqrt{2^2 \times 31}}{4}\\\\x = \frac{ 10 \ \pm2 \sqrt{31}}{4}\\\\x = \frac{ 5 \ \pm\sqrt{31}}{2}\\\\

x = \frac{ 5 \ + \ \sqrt{31}}{2} \ , \ x = \frac{ 5 \ - \ \sqrt{31}}{2}

3 0
3 years ago
Given f(x)=3x-1, solve for x when f(x)=-7.
ddd [48]

Answer:

x = -2

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

<u>Algebra I</u>

  • Function Notation

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = 3x - 1

f(x) = -7

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Substitute:                    -7 = 3x - 1
  2. Isolate <em>x</em> term:              -6 = 3x
  3. Isolate <em>x</em>:                       -2 = x
  4. Rewrite:                        x = -2
8 0
3 years ago
Fiona has met her goal of exercising 150 minutes a week. She has kept it up for six months and is sure that it is now solidly pa
cricket20 [7]

Answer:

D

Step-by-step explanation:

You are always able to do better, and Fiona needs to reflect

4 0
2 years ago
Show what you know: work out the problems below and submit a photo of your work to receive full credit.
Alexxandr [17]

The model for representing the ratio of the number of orange and green rolls are  \dfrac{3}{2}.

A model that shows the number of orange and green streamers needed to decorate 3 dorm rooms will be 3O=2G

<h3>What is ratio?</h3>

The ratio is defined as the representation of the one number with respect to the other number. or one number is how many times to the other number.

A model that represents the ratio of different colored streamers.

\dfrac{O}{G}=\dfrac{3}{2}

A model that shows the number of orange and green streamers needed to decorate 3 dorm rooms.

D=3O   and  D=2G

3O=2G

Hence the models are  \dfrac{O}{G}=\dfrac{3}{2}  and  3O=2G.

To know more about Ratios follow

brainly.com/question/4931057

#SPJ1

6 0
2 years ago
A mousetrap car is filmed as it runs the racecourse. The film includes 1,200 photo frames taken in 8 seconds. How many frames we
jarptica [38.1K]

Answer: 150 frames were taken.

4 0
3 years ago
Other questions:
  • Winter coats are marked 70% off on February 1st. If a coat costs $57.75 on January 31st, how much will it cost on February 1st?
    15·2 answers
  • A 15 kg bag of strawberry for $8 _____ per bag
    9·1 answer
  • recommend an element use to fill bottles that contain ancient paper. the element should be a gas at room temperature, should be
    13·1 answer
  • Can you square root a negative number? Why or why not?
    11·2 answers
  • Eric Has some quarters and nickels in his pocket he has 30 total count the total value is $3.70 write a system that could be use
    13·1 answer
  • 3x + 5 = 2x + 9 <br> What do I do???
    7·2 answers
  • What is the area? Plz show me step by step. :)
    15·1 answer
  • Mrs. Kidd is five feet 3 inches tall. If one inch is approximately 2.5 centimeters, how many centimeters tall is Mrs. Kidd? Do N
    10·1 answer
  • Translate the description as an algebraic expression:
    11·1 answer
  • What is reductionism​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!