y=x2-4

what is the answer?​

Answers

Answer 1

Answer:

x=√y+4 or x=−√y+4

Step-by-step explanation:

Step 1: Add 4 to both sides.

x2−4+4=y+4

x2=y+4

Step 2: Take square root.

x=√y+4 or x=−√y+4


Related Questions

Select the fraction that is equivalent to one half.

HOW DO I DO THIS PLZ HELP

Answers

Answer:

1/2 one half

Step-by-step explanation:

Answer:

Multiply both the numerator and the denominator by the same whole number.

For example;

If you multiply 1/2 by 2/2, this will equal 2/4. You can simplify 2/4 to 1/2.

So to find 1/2 to be equivalent to another fraction, multiply both the numerator and the denominator by the same number to find a fraction that equals 1/2.

bob is twice as old as alice at the moment in 4 years time their total age they will be 71 what is alice's age now?

Answers

Answer:

Alice is 34

Step-by-step explanation:

71 - 4 = 68

68 ÷ 2 = 34

Alice is 34 :)

Question 2
How many solutions is x=0?
Zero
Infinitely many
One

Answers

Answer:

x= 0 has one solution

Step-by-step explanation:

Here, we want to get the number of solution

Looking at the relation, we can see that what we have is a linear relation

mathematically, a linear relation has a single solution

Thus, x = 0 has one solution

at the grocery store, 8 oranges cost $4. What is the cost for 9 oranges

Answers

Answer:

$4.50

Step-by-step explanation:

First you find the cost of each orange

4 divided by 8 = 0.5

so if each orange is $0.5 you can multiply it by 9 which is the amount of oranges there are

9 * 0.5 = $4.50

For the following situation, define your variable, write an equation or inequality, and then answer the question. Make sure your work is clear and complete.

Darren was sure he ate 26 buffalo wings during the Superbowl. Terrance wasn’t sure how many he ate, but he was sure it was more than double what Darren ate. How many buffalo wings could Terrance have eaten?

Answers

He could’ve eaten 43 Buffalo wings because 42 is double but it asks for more than double.

73000.008 = 7.3 10° + 8 x 10
Work out the powers of c and d

Answers

Answer:

x=2.488966,−2.488966

Step-by-step explanation:


Which equation is nonlinear?
o 2x - y = 9
Oy = x2 + 3
Oy = 2x - 3
OX= y

Answers

X=y is not a linear equation

You pay $11.20 to buy drink boxes for the football team. Each drink box cost $0.40. How many drink boxes did
you buy?

Answers

I think it’s uhhhh I think it’s uhhhhh carrot

Kara is the manager of a video game store. She is in charge of buying the video games for the store to sell. She buys video games from a wholesaler that sells them for $10

each. The wholesaler also charges a fee of $160 for each bulk purchase. Kara then sells the video games for $14 each.

Write an equation to represent the cost to buy videos from the wholesaler. Let x represent the number of videos bought. Let y represent the total cost in dollars.

Answers

Answer: y = 10x + 160

Step-by-step explanation:

The cost follows the linear equation format of:

y = mx + c

Where:

y = dependent variable or the total cost

m is the cost per each additional unit of x

x is the number of video games

c is the constant cost or rather the fee per bulk purchase

Formula is therefore:

y = 10x + 160

Using the formula. Assuming Kara buys 100 video games, the cost would be:

y = 10 * 100 + 160

y = $1,160

The Earth is 1.496 × 108 km from the Sun. Express this number in standard form.

Answers

Answer:

161.568

Step-by-step explanation:

use a calculator just multiply

Answer:

Step-by-step explanation:

the standard form is

1.496 × 10^8=149,600,000 km

Anne can swim 4 laps in 3 minutes. How many laps can she swim in 27 minutes.

Answers

Answer:

( 27 x 4 ) /3 = 36  laps

Step-by-step explanation:

Anne can swim 36 laps in 27 minutes. You would set up a proportion 4/3 = ?/27 and figure out what multiplied b

Evaluate mn when m=8 and n= 1/2

Answers

Answer:

4

Step-by-step explanation:

you just multiply 8(m) by 1/2(n)

Answer would be 4. Multiply 8 by 1/2 and you get 4.

Solve by completing the square x^2-10x-24=0

Answers

Answer:

 x = -2  and x =12

Step-by-step explanation:

Explanation:-

Given equation  x² - 10 x - 24=0

                          x² - 12 x +2x - 24 =0

                ⇒   x (x-12) +2( x -12) =0

              ⇒  x+2 =0 and x-12 =0

             x = -2  and x =12

10.) Combine the like terms in the following expression: 8 + 3x + x + 5 + 2x *

Answers

Answer:

6x+13

Step-by-step explanation:

I hope this is right.

I’m pretty sure it’s 6x+13

1. What is a reciprocal?
The definition of a reciprocal

Answers

Answer:

a mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity.

Step-by-step explanation:

I think that's it

Now, rename your answer so the fractional part is less than one.
5
5 11
+ = 5
8 8

Answers

answer: 2 explanation: add it to the

The Bridal Shop bought a dress from a supplier for $105 wholesale and applied a 65% markup to the price.
If a 7.5% sales tax were added after a 20% discount was used, what would be the total cost to purchase the dress?
A
$146.20

B
$149.00

C
$158.48

D
$160.17

Answers

Answer:

B $149.00

Step-by-step explanation:

105 * 1.65 =   173.25      (100%+ 65%)    Price with the markup            

173.25 *0.80  138.60  (Price after 20% discount .The price will be the 80%)    

138.60 * 1.075 =   148.995  (price with 7.5  sales tax.)  

What is the contra post I’ve of this conditional statement

Answers

Answer:

Option (2)

Step-by-step explanation:

Statement p → If an animal is an adult insect

Statement q → It has six legs

Contrapositive statement means: -q → -p

"If not q then not p"

Therefore, costrapositive statement of the given conditional statement will be,

If the animal does not have six legs, then it is not an adult insect.

Option (2) will be the answer.


Jordyn made some bracelets and sold them at a craft fair for $8 each. She paid $50 in
materials and fees. Jordyn's profit after the fair was $310. She wants to know how
many bracelets she sold.

Answers

Answer:

38

Step-by-step explanation:

because when u divide it

38 is the right answer

Solve the inequality
-2y- 5 > 5/2

Answers

Answer:

y = -15/4

Step-by-step explanation:

Easy ! Hurry !

Very easy

Answers

Answer:

13

Step-by-step explanation:

Add 6 to both sides.

3m−6+6=33+6

3m=39

Divide both sides by 3.

3m/ 3 = 39 /3

m=13

Answer:

[tex] \huge \: x = 13[/tex]

Step-by-step explanation:

to understand thisyou need to know about:equationPEMDASgiven:3m-6=33to solve:xlet's solve:

[tex]step - 1 : define[/tex]

[tex]3m-6=33[/tex]

[tex]step - 2 : \\ add \: 6 \: to \: both \: sides[/tex]

[tex]3x - 6 + 6 = 33 + 6[/tex]

[tex]3x = 39[/tex]

[tex]step - 3 : \\ divide \: both \: sides \: by \: 3[/tex]

[tex] \frac{3x}{3} = \frac{39}{3} [/tex]

[tex] \huge\therefore \: x = 13[/tex]

- 10x -12 = -12x + 4
Solve for x pls

Answers

Answer:

x=8

Step-by-step explanation:

- 10x -12 = -12x + 4

-10x+12x=4+12

2x=16

x=8

Answer:

x = 8

Explanation:- 10x -12 = -12x + 4Add 12x to both sides

−10x − 12 + 12x = −12x + 4 + 12x

2x − 12 = 4

Add 12 to both sides

2x − 12 + 12 = 4 + 12

2x = 16

Divide both sides by 2

2x / 2 = 16 / 2

x = 8

- PNW

what is the slope of the line passes through the points (-3, -3) and (-5, -2) in simplest form help me

Answers

Answer:

Slope, [tex]m=\dfrac{-1}{2}[/tex]

Step-by-step explanation:

We need to find the slope of the line passes through the points (-3, -3) and (-5, -2).

The formula for the slope of a line is given by :

[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

Put x₁ = -3, y₁ = -3, x₂ =-5 and y₂ = -2

So,

[tex]m=\dfrac{-2-(-3)}{-5-(-3)}\\\\m=\dfrac{-1}{2}[/tex]

So, the slope of the line is [tex]\dfrac{-1}{2}[/tex].

7. Which of the following is a true statement
about the angles in the figure below?

Answers

Answer:

d

Step-by-step explanation:

Answer:D

Step-by-step explanation:

3(2x + 1) = 6(5x - 4)

Answers

Answer:

X= 9 over 8 or 9/8

Step-by-step explanation:

hopefully this helps

Answer:

9/8 or 1.125 or 1 1/8

Step-by-step explanation:

Can y’all help me plz

Answers

B is 360 and c is 72

I NEED HELP! I've failed this test twice and need to get it right. HELP PLEASE!

Answers

Answer:

180

Step-by-step explanation:

C + D = 180 degrees since they are a linear pair

D = 127 degrees, so

C + 127 = 180

to get the C, you need to subtract 180 degrees bt 127 degrees

180 - 127 = C

Please help I have 30 minutes or I fail this assignment no joke please answer all the questions there's only four.

Answers

Answer:

Sorry if I am wrong don´t count on me tho I would wait until someone else answers cause I might be wrong.

1). 9

2). -2

3). i don´t know

4). i don´t know

Step-by-step explanation:

Sorry plz don´t be mad I´m only in 4th grade

Set up a proportion to solve: 24 is 25% of what number?

Answers

Answer:

96

Step-by-step explanation:

25% can be written as 0.25

so:

24= .25*x

Divide both sides by 0.25

24 - .25x

.25 - .25

x=96

Ben wants to buy a guitar. The regular price of the guitar is $329.99. The sale price of the guitar is 25% off of the regular price. What is the sale price of the guitar?

Answers

$247.49 because 329.99 minus 25 percent gives that amount
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