If f(x)=2x^2-4, find f(0) and f(-3)

Answers

Answer 1

Answer:

1st problem. x= √2, -√2 or Decimal form x= 1.41421356...

2nd problem.  x= √2/2 , -√2/2 or Decimal form X= 0.70710678...


Related Questions

Find the solution of the system of equations
8x + 7y = 47
-4x - 5y = -25

Answers

Answer:

x,y = 5,1

Step-by-step explanation:

How many points of intersection are there between the graphs of the hyperbola and ellipse?
3x2 – 4y2 + 4x – 8y +4= 0
3x2 + y2 + 4x – 3y +4= 0
A.0
B. 1
C. 3
D.4

Answers

The point of intersection is the point where two or more functions meet.

The graphs of the hyperbola and ellipse have 0 point of intersection

The given parameters are:

[tex]\mathbf{3x^2 - 4y^2 + 4x - 8y + 4 = 0}[/tex]

[tex]\mathbf{3x^2 + y^2 + 4x - 3y + 4 = 0}[/tex]

To determine the points of intersection, we simply equate both equations.

So, we have:

[tex]\mathbf{3x^2 + y^2 + 4x - 3y + 4 = 3x^2 - 4y^2 + 4x - 8y + 4 }[/tex]

Cancel out the common terms

[tex]\mathbf{y^2 - 3y = - 4y^2 - 8y }[/tex]

Collect like terms

[tex]\mathbf{y^2 +4y^2= 3y - 8y }[/tex]

[tex]\mathbf{5y^2= - 5y }[/tex]

Divide through by 5

[tex]\mathbf{y^2= - y}[/tex]

Divide through by y

[tex]\mathbf{y= -1}[/tex]

The system of equation does not give room to calculate the x-coordinate at the x-axis.

Hence, the graphs of the hyperbola and ellipse have 0 point of intersection

Read more about points of intersection at:

https://brainly.com/question/13373561

Answer: 0

Explanation: Took the test

Rút gọn biểu thức √81a^6b^2

Answers

Answer:

English.........plzpzl

Please help me with this homework

Answers

The answer is 1.25.

The equation for slope is rise over run. Y is the rise and X is the run. The point equation is (y2-y1)/(x2-x-1) = slope.

Plugging in the numbers: (-4-1)/(-4-0) = 1.25

Answer:

5/4

Step-by-step explanation:

Slope = Rise↕/Run↔

In other words, from coordinates (-4,-4) go up 5 units then go right 4 units, to get to coordinates (0,1).

Hope this makes sense :)

Choose the equation that represents the line passing through the point (−2, −3) with a slope of −6.

y = −6x − 15
y = −6x − 20
y = −6x + 15
y = −6x + 20

Answers

Answer:

[tex]y = mx + c \\ - 3 = - 2( - 6) + c \\ c = - 15 \\ y = - 6x - 15[/tex]

the person above is right give them some slack

| -5 -(-8) | i need help with algabraic expression

Answers

-5 (-8) =3
And the absolute value of 3 is 3!

I hope this helps! & Let me know if you have any questions!

Mark this as Brainliest if you get a chance:)

What is the range of the discrete finite function mapped below?
F(x)
2
6
8
-10
A. {(2, 2), (6, 1), (6,4), (10,5)}
B. {(1,6), (2, 2), (4, 6), (5, 10)}
C. {1,2,3,4,5)
D. {2, 6, 10}

Answers

Answer:

your right is (C)

hope it's help you (^0^)

Please help!!!
Which table represents a linear function?

Answers

Answer:

it should be D

Step-by-step explanation:

answer is D hope this helped could you make me brain pls too

Liam knows the key to making creamy risotto, a rice dish, is to add the liquid to the rice gradually. He adds 5 ladles of chicken broth to his rice before adding seasoning, and he continues to add 2 ladles of broth each minute afterwards.Write an equation that shows the relationship between the number of minutes since Liam added the seasoning, x, and the total number of ladles of broth he has added, y.

Answers

The equation that shows the relationship between the number of minutes and total number of ladles of broth is y = 2x + 5

Let x represent the number of minutes and y represent the total number of ladies.

Since he adds 2 ladles of broth each minute and he has 5 ladies initially, hence:

y = 2x + 5

The equation that shows the relationship between the number of minutes and total number of ladles of broth is y = 2x + 5

Find out more at: https://brainly.com/question/13911928

Answer:

2x+5

Step-by-step explanation:

I did it on IXL:

Point L is on line segment

K

M

‾

KM

. Given

L

M

=

2

LM=2 and

K

M

=

19

,

KM=19, determine the length

K

L

‾

.

KL

.

Answers

Answer:

k is the option that makes sense

Please help!!! Confused

Answers

Answer: Please post your question!

Step-by-step explanation:

Answer:

i will gladly help, i just need the question lol

Step-by-step explanation:

someone help me im trying not to fail this year-​

Answers

Answer:

x-y=-3

Step-by-step explanation:

name two pairs of perpendicular lines

Answers

Answer:

AC is perpendicular to CD, and DB is perpendicular to AB

4/6 + 1/2 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

Answers

Answer:

7/6 or 1 1/6

Step-by-step explanation:

4/6 + 1/2

= 4/6 + 3/6

= 7/6 = 1 1/6

Answer:

7/6

Step-by-step explanation:

4+2=6

6+1 =7

put 7 over six because it is the bigger donimanitor

27 is 45% of what number?

Answers

Answer:

60%

Step-by-step explanation:

The first step is to divide 27 by 45 to get the answer in decimal form:

27 / 45 = 0.6000

Then, we multiplied the answer from the first step by one hundred to get the answer as a percentage:

0.6000 * 100 = 60.00%

60

Step-by-step explanation:

If you take 45 percent of a number and get 27, then what is that number? In other words, you know that 45 percent of a number is 27 and you want to know what that initial number is.

To solve this problem you multiply 27 by 100 and then divide the total by 45 as follows: (27 x 100) / 45

When we put that into our calculator, we get the following answer:

60

Therefore, the answer to "27 is 45 percent of what number?" is 60, and you can also derive that 45 percent of 60 equals 27.

Hope it helps

Have a good day!

PLEASE HELP AND PLEASE MAKE YOUR EXPLANATION DETAILED!!!

if y=28 when x= 168, find y when x =108.

Answers

Answer: oke we give y=a*x

Step-by-step explanation:a=[tex]\frac{1}{6}[/tex]

[tex]\frac{y}{108}[/tex]=[tex]\frac{1}{6}[/tex]

=>y =18

Type the correct answer in the box. Use numerals instead of words.
What value of n makes the equation true?
COIN
312
= -12
n=

Answers

Answer:

what i dont understand how does 312=-12

Step-by-step explanation:

Put y + 3 = -3(x + 2) in slope-intercept form.

Answers

Answer:

[tex]y + 3 = - 3(x + 2) \\ y + 3 = - 3x - 6 \\ y = - 3x - 9[/tex]

Answer
It’s -3x -9
Explanation

I'm lost on this thing, can any of y'all help? would be appreciated

Answers

Answer:

wher is question

Step-by-step explanation:

Someone pls help me I will make you brain

Answers

Answer: Cant see or read

Step-by-step explanation:

Help

Dealing with corresponding write reasons as well pls

Answers

Answer:

X=60°

Step-by-step explanation:

A1=100° vertically opposite angles

100°=2x-20°

120°=2x

X=60°

How many boxes of that particular tennis shoe did Alan’s athletic store have at the end of the day ?

Answers

Answer:

75 should be the answer

Step-by-step explanation:

if you take 100 plus that 50 then divide the 150 in half theres 75

what is –89.16 – 154.81

Answers

Answer:

The answer is -243.97

Step-by-step explanation:

-89.16-154.81= -243.97

what is the rate of change of y=-5/4x

Answers

My teacher always says if the number is in front of the X then that the answer ‍♀️

Find the measure of the marked angles.
The measure of the angles is
___ degrees

Answers

Answer:

43 degrees

Step-by-step explanation:

The angles are vertical angles. All vertical angles are congruent meaning that these 2 expressions can be set equal to each other. Then, solve for x and finally plug x back in to get the answer.

First, set of the equation

(4x+19)=(6x+7)

Then, subtract 7 from both sides

4x+12=6x

Next, subtract 4x both sides

12=2x

Finally, divide both sides by 2

x=6

Now, we can plug 6 into the expression given to show that both angles are 43 degrees.

HELP DUE IN 10 MINUTES!!!
Two Step Equations Word Problems

Last month, Margo bought a tree that grows 2.5 cm each day. It was 5 cm tall when she bought it and now it is 65 cm tall.

1. Write an equation to determine the number of days (d) Margo has owned the plant.

2. Find the number of days Margo has owned the plant.

Answers

Answer:

1 - 2.5cm × 24cm = 60cm + 5cm = 65cm

2 - 24 Days

Simplify 3c-9d+7c+5d

Answers

Answer:

10c - 4d

Step-by-step explanation:

Hey there,

Combine like terms

3c - 9d + 7c + 5d

3c + 7c - 9d + 5d

= 10c - 4d

Hope this helps you.

Let me know if you have any other questions :-)

Each scatter plot below shows the same data.

Which scatter plot has the most reasonable line of best fit?

Answers

Answer:

bottom right corner

Step-by-step explanation:

Answer:

Step-by-step explanation:

Scatter plots' primary uses are to observe and show relationships between two numeric variables. ... Relationships between variables can be described in many ways: positive or negative, strong or weak, linear or nonlinear. A scatter plot can also be useful for identifying other patterns in data.

What are the coordinates of the office? Enter the coordinates like this: (x,y) without any spaces. *

Answers

Answer:

Step-by-step explanation:

(6,9) it think its that

Identify the property that is used in each statement.
HELP ME PLEASE DUE IN 15 minutes!!!??

Answers

Answer:

65

Step-by-step explanation:

Other Questions
FIND THE NUMBERR!!!!!! 1. True or False: The newly freed men and women feared they would nothave to resources, tools and education to turn their freedom intosomething * help-i dont remember how to do this or what the answer would be Draw a picture and write an equation to help you solve the following problems What events during the Neoclassical period most likely contributed to the enslavement of Olaudah Equiano? Select all answers that apply. A. The death of Queen Elizabeth B. A contract to provide slaves to the Spanish EmpireC. The expansion of the British Empire D. The establishment of the British Navy Some of the proposed expanded health care coverage policies such as Medicaid as a public option does not violate free markets because? Question 7) Amy and Delilah are writing a vignette scene of drama to present to their class on Tuesday. What genre of writing does their project MOST likely fall under?A. comedy writingB. sketch writingC. screenwritingD. historical writing Use the graph of the quadratic function, g(x), to answer each question. a. g(-1) = b.g(-3) = c. Find x when g(x) = 4. X = ____ is the most northern New England state. What differences are there between heartwood and sapwood? translate this into an equation, use n for the number: "the different of 3 times a number and 6 is twice the number." Two skaters face one another and stand motionless, then push against each other on the ice. If one's mass is 55 kg and he moves to the left after the push at a velocity of 4.3 m/s, how fast was the other skater traveling after the push if her mass was 48 kg. If a girl says she likes you but then throws a moldy apple at ur head then laughs abt it and then say she was messing does she really like ya Which of the following is arepresentation of 12!A. 12*11*10*9*8*7*6*5*4*3*2*1B. 12+11+10+9+8+7+6+5+4+3+2+1C. 12-11-10-9-8-7-6-5-4-3-2-1 Please hurry, i'm being timed!!!!!! Multiplying performed on both sides of the equal sign, it is called:A.) Division Property of EqualityB.) Timesing Property of EqualnessC.)Addition Property of EqualityD.)The answer is NOT here. explain how to calculate a unit rate such as 300 miles per hour 4 houri need help I'm kind of stuck (4m-5)(3m+3)Solve for m What is the remainder when x^2+ 3 is divided by x - 1? shivering in response to a cold environment is an example of It currently takes users a mean of 25 minutes to install the most popular computer program made by RodeTech, a software design company. After changes have been made to the program, the company executives want to know if the new mean is now different from 25 minutes so that they can change their advertising accordingly. A simple random sample of 51 new customers are asked to time how long it takes for them to install the software. The sample mean is 26.2 minutes with a variance of 16 minutes. Perform a hypothesis test at the 0.01 level of significance to see if the mean installation time has changed. What kind of problem is this