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
Dovator [93]
3 years ago
14

X^2+2x-5=0 quadratic form

Mathematics
1 answer:
julsineya [31]3 years ago
3 0

Answer:

-1+√6

-1-√6

Step-by-step explanation:

x²+2x-5=0

x=(-2±√(2²-4(-5)))/2=(-2±√(4+20))/2=(-2±√24)/2

x₁=(-2+√24)/2 or x₂=(-2-√24)/2

x₁=(-2+2√6)/2 or (-2-2√6)/2

x₁=-1+√6 or x₂=-1-√6

You might be interested in
HELP MATH
aleksley [76]

Answer:

18.84 is the answer

Step-by-step explanation:

Can I please be marked as brainlist

8 0
3 years ago
The proof ABC ≅ DCB that is shown.
Schach [20]

The <em><u>correct answer</u></em> is:

AAS

Explanation:

AAS stands for "angle-angle-side."  This states that if two angles and a non-included side of one triangle are congruent to the corresponding two angles and non-included side of another triangle, then the triangles are congruent.

In these triangles, we have ∠CAB ≅ ∠CDB given to us to begin with.  Throughout the proof, we find that ∠ABC ≅ ∠DCB.  We also have that CB is congruent to itself.  This is two angles and a side not included, so this is AAS.

4 0
3 years ago
Read 2 more answers
A rectangular garden has a walkway around it. The area of the garden is 4​(4.5xplus1.5​). The combined area of the garden and th
Arte-miy333 [17]

Answer:

Walkway is 1.5 units²

Step-by-step explanation:

Just subtract the area of the garden from the combined area:

<u>5.5-4=1.5</u>

Also did you mean difference? I don't know what it means by sum.

8 0
3 years ago
To estimate the slope of the tangent line at t = 15, we average the slopes of the adjacent secant lines for t = 10 and t = 20. A
Nata [24]

Answer:

  -130.8

Step-by-step explanation:

The average of the two slope values is ...

  (-148.8 -112.8)/2 = -261.6/2 = -130.8

The slope of the tangent line at t=15 is approximately -130.8.

4 0
3 years ago
How much would it cost to buy 3 $13 battery packs and 3 $22 copper wires
Makovka662 [10]
It would cost $105 because if you do 13+13+13= 39
22+22+22= 66
66+39= 105.
6 0
2 years ago
Other questions:
  • Which type of car had the largest range in monthly sales? Explain how you came up with your answer.
    9·2 answers
  • Find the x-intercept of y = 4 ^ x - 64 .
    14·1 answer
  • A 12 ounce bag of birdseed costs $3.12. A 16-ounce bag of birdseed costs $3.84. Which is the better deal. How much money per oun
    13·1 answer
  • Someone pls help I really don’t get it
    15·1 answer
  • Can someone give me a answer key for Vocabulary Test Course 1 Chapter 4 Multiply and Divide Fractions​
    7·1 answer
  • Pretend you got 86% of the questions on a state test correct. The test had 120 problems. How many problems did you get correct?
    9·1 answer
  • How much time is between 2:30 pm and 4:15pm?? I need an answer quick!!
    7·1 answer
  • In a survey of a town, 54% of residents own a car, 34% of residents own a truck, and 11% of residents own both a car and a truck
    7·1 answer
  • Right answer gets brainlist
    13·1 answer
  • Help! im doing a gooru question but i dont know how to do it
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!