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
Alika [10]
3 years ago
14

Which equation has the solutions X=1 +-SQRT 5?

Mathematics
2 answers:
Vesna [10]3 years ago
8 0

Answer:

D is correct. x^2-2x-4=0

Step-by-step explanation:

We are given the root of the equation

x=1+\pm \sqrt{5}

If we are given solution of the equation then find equation using formula.

If a and b are the solution of equation then equation would be (x-a)(x-b)=0

Here, a=1+\sqrt{5} , b=1-\sqrt{5}

Equation form would be (x-1-\sqrt{5})(x-1+\sqrt{5})=0

Now we simplify the above equation to get correct option.

x^2-x+x\sqrt{5}-x+1-\sqrt{5}-x\sqrt{5}+\sqrt{5}-5=0

x^2-2x-4=0

So, D is correct.  x^2-2x-4=0

Natali [406]3 years ago
8 0

Answer: D

Step-by-step explanation:

2020edg

You might be interested in
How many zeros does this polynomial function, y=(x-8)(x+3)^2
lidiya [134]

Answer:

3

Step-by-step explanation:

The factor (x - 8) has 1 zero at x = 8

The factor (x + 3)² has a zero at x = - 3 of multiplicity 2

In total there are 3 zeros


3 0
3 years ago
Read 2 more answers
A plank of wood is 220 cm long.I cut it in 14cm pieces. what lenght of wood i will have left over?
Nana76 [90]

The required Length is 10cm.

What is length?

  • Length is a measure of distance. In the International System of Amounts, length is a volume with dimension distance. In utmost systems of dimension a base unit for length is chosen, from which all other units are deduced.
  • Length is generally understood to mean the most extended dimension of a fixed object. still, this isn't always the case and may depend on the position the object is in.
  • Varied terms for the length of a fixed object are used, and these include height, which is the perpendicular length or perpendicular extent, and range, breadth, or depth. Height is used when there's a base from which perpendicular measures can be taken. range or breadth generally relates to a shorter dimension when the length is the longest one.

220 / 14 gives us 15.

You have to understand that this means 15 whole 14 cm pieces and a Length of 1 piece.

thus 14 * 15 = 210

So 220- 210 = 10

where you know 220- 210 is< 15

Hence, The correct Length is 10cm.

Learn more about Length here:

brainly.com/question/2217700

#SPJ9

7 0
1 year ago
How should I go about solving this question?
Verdich [7]

Answer:

A radius of a circle or sphere is any of the line segments from its center to its perimeter, and in more modern usage, it is also their length

Step-by-step explanation:

3 0
2 years ago
Rhett decides to build a square room for his movie and music collection. If the area of the room is 9x2 − 6x + 1 square feet, wh
Marina86 [1]

If the area of the room is 9x2 − 6x + 1 square feet, then the length of one<span> side of the room is <span>(3x − 1) feet. </span></span>The correct answer between all the choices given is the third choice or letter C. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

3 0
2 years ago
Read 2 more answers
[13 + (−19)] × (−7) ÷ (−3)
harina [27]

Answer:

-14

Step-by-step explanation:

c a l c u l a t o r

3 0
2 years ago
Other questions:
  • Which scale would produce the smallest drawing
    14·1 answer
  • Write and equivalent expression for 5x - 2(x-4)
    10·1 answer
  • Can someone help me with these please.
    5·1 answer
  • HELP THIS IS URGENT!!!!!!!!!!!!!!!!!!!!!!
    11·1 answer
  • Estimate 5,002,319 times 24,625
    13·2 answers
  • What is a counterexample for if a shape has 4 sides its a rectangle
    8·2 answers
  • How many kilograms are there in 37 pounds?
    6·2 answers
  • What is the sale price of a hardcover book with a markdown of 46% and original price of 29.00 what is the discount amount
    5·1 answer
  • What is the equation of the graphed line written in
    9·1 answer
  • You start at (0, 0). You move up 3 units. Where do you end?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!