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
cestrela7 [59]
3 years ago
15

I need help on this problem ​

Mathematics
1 answer:
AlladinOne [14]3 years ago
4 0

Answer:

y² - 2y - 4x + 9 = 0 (*)

a = 1    b = -2    c = -4x + 9

Δ = b² - 4ac = 4 - 4(9 - 4x) = 4 - 36 + 16x = 16x - 32

if (*) have the solutions => Δ ≥ 0

⇔ 16x - 32 ≥ 0 ⇔ x ≥ 2

with x ≥ 2 => y = \frac{2+\sqrt{16x-32} }{2}=\frac{2+4\sqrt{x-2} }{2}=1+2\sqrt{x-2}

or y = 1-2\sqrt{x-2}

Step-by-step explanation:

You might be interested in
Can someone, help. I'm so confused
Lena [83]
Okay, so it basically means you're subtracting.
I'm going to give some examples of what the answer could be.

1. 5 - 5 = 0
2. 5 - 4 = 1
3. 5 - 3 = 2
4. 5 - 2 = 3
5. 5 - 1 = 4
6. 5 - 0 = 5

Or of course if you feel you would like to switch the order of the problems, go ahead and try that, but no matter what happens, make sure the addition version always equal 5, so just be careful :)
6 0
2 years ago
Read 2 more answers
Rico thinks it's a perfect square triinomiall. Teresa says it's the difference of two squares. Who is
Naya [18.7K]

Answer: Rico is right.

(-1)(3x + 5)²

Step-by-step explanation: If it were the difference of two squares, the -30x would not be there.

It makes sense to factor out (-1) fry the trinomial, leaving all positive terms.

Then factor 9x² + 30x + 25 as

(3x + 5)²

7 0
2 years ago
Help will mark Brainly
o-na [289]

Answer:

V ≈ 8.67x10^7 ft^3

Step-by-step explanation:

We know that the volume of a pyramid is V= (lwh)/3

Since it is a square pyramid, it means that the length and the width are the same:

Length=755.9 feet

Width=755.9 feet

Height=455.4 feet

So, the volume is :

V = [(755.9)(755.9)(455.4)]/3

V = 86736214.158 ft^3

V ≈ 8.67x10^7 ft^3

Hope this helps!

Mark brainliest if u think I helped! Would really appreciate!

6 0
3 years ago
6. HOT AIR BALLOON А balloon rises<br>340 feet into the air. Then it descends<br>130 feet.​
Nezavi [6.7K]
Now it is at 210 feet
7 0
2 years ago
Read 2 more answers
How to find the least common denominator with fractions?
Scrat [10]
Find out what the lowest number is that each of the numbers on the bottom of the fractions can divide into evenly.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Tyler has $1350 in the bank. He wants to increase his balance to a total of $2550 by depositing $40 each week from his paycheck.
    7·2 answers
  • What is the length of the altitude drawn to the hypotenuse using 7 15
    13·1 answer
  • show me how to solve: 110 calories in 28.4 grams of cereal, how many calories in 34.08 grams of cereal?​
    13·1 answer
  • Lucie is struggling with Geometry and is in need of a private tutor. She has two candidates in mind. The veteran tutor charges $
    9·1 answer
  • PLEASE HELP!!!! WILL GIVE BRAINLIEST!!!!!
    7·1 answer
  • the lines below are parrallel . if the slope of the green line is -2, what is slope of red line? its a algebra question pls help
    14·1 answer
  • What is taxes? What is Texas' tax rate?
    15·1 answer
  • Is -x the same as -1x
    6·1 answer
  • Consider the system and find the eigenvalues and the eigenvectors
    5·1 answer
  • sharon mixed meat with potatoes in the ratio 7 : 3 to make 4kg of meat loaf. how much meat did she use
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!