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
s2008m [1.1K]
3 years ago
12

What are the zeros of the function f(x) = x2 + 5x + 5 written in simplest radical form?

Mathematics
1 answer:
dsp733 years ago
4 0

Answer:

   x  =   \frac{-5-\sqrt{5} }{2} , \frac{-5+\sqrt{5} }{2}

Step-by-step explanation:

Given equation f(x) = x² + 5 x +5

The roots of the Quadratic equation   ax²+bx+c =0 are

           x = \frac{-b-\sqrt{b^{2}-4 a c } }{ 2 a}  ,  \frac{-b+\sqrt{b^{2}-4 a c } }{ 2 a}

Given equation f(x) = x² + 5 x +5

comparing           ax²+bx+c =0 is

                a = 1 , b = 5 and c = 5

             x = \frac{-5-\sqrt{(5)^{2}-4 (1)(5) } }{ 2 (1)}  ,  \frac{-5+\sqrt{(5)^{2}-4 (1) (5) } }{ 2 (1)}

            x  =   \frac{-5-\sqrt{5} }{2} , \frac{-5+\sqrt{5} }{2}

             x  = -7.76 ,  x = -2.76 ,

You might be interested in
A complex number z=a+bi had an absolute value of 3.28. What could the values of a and b be ? A.a=1.5,b=1.7 C.a=1.7,b=2.8
Levart [38]
The given complex number is ⇒ z = a + b i
The absolute value of z = √( a² + b² ) = 3.28
So, we will check which of the options will give 3.28

<span>( A) IF ⇒⇒ a=1.5 and b=1.7
</span>
<span>∴ √( a² + b² ) = √( 1.5² + 1.7²) = √5.14 ≈ 2.27
</span>
===================================

<span>(B) IF ⇒⇒ a=1.5 and b=3.3
</span>
<span>∴ √( a² + b² ) = √(1.5² + 3.3²) = √13.14 ≈ 3.62
</span>
====================================

<span>(C) IF ⇒⇒ a=1.7 and b=2.8
</span>
<span>∴ √( a² + b² ) = √(1.7² + 2.8²) = √10.73 ≈ 3.28
</span>
====================================

<span>(D) IF ⇒⇒ a=2.8 and b=3.3
</span>
∴ √( a² + b² ) = √(2.8² + 3.3²) = √18.73 ≈ 4.33
=====================================
So, the correct answer is option (C) <span>a=1.7,b=2.8</span>
4 0
3 years ago
Michelle went on a hike. She started on the trail at 6:45 a.m and returned at 3:28 p.m. How long did she hike?
Lerok [7]
D. Because if one time is a certain amount of time away from 12pm and the other one is a certain amout away from 12pm then you add them up and get a number of hours and minutes
8 0
3 years ago
Read 2 more answers
Ok really need hellp hear
Nuetrik [128]

Answer:

2/3 is the answer..

Step-by-step explanation:

becaue 2 holes then 2/3s is not filled trust me!!! plz give brainliest and a thanks!!!!

6 0
2 years ago
Ms. Rowlen went Black Friday shopping and she bought a flat screen TV that originally costs $259.00. She used her super Savings
Paladinen [302]

Answer:

116.55$

Step-by-step explanation:

259 \times  \frac{45}{100}  = 116.55

7 0
2 years ago
Shelby wants to buy 10 yards of fabric that costs $2.49 per yard. How much money will Shelby need to purchase all the fabric? $2
nekit [7.7K]

Answer:

$24.90

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • Does the mean, median, or mode best describe this data set 240,450,180,160,195,170,240,<br> 165?
    6·1 answer
  • Teresa is 25 years old, and she makes $30,000 per year. If Teresa were to die,
    14·1 answer
  • The distance between Cincinnati, Ohio,and Charlotte,North Carolina is about 336 miles.the distance between Cincinnati and Chicag
    15·1 answer
  • Is -1 1/2 rational?
    9·2 answers
  • 6/5 B + g^2 = d <br> B = ?
    6·1 answer
  • PLEASE ANSWER QUICKLY! WILL GIVE REWARD!!
    7·2 answers
  • In □PQRS side PQ∥ side RS. If m∠P = 108degree
    6·2 answers
  • A theater can seat 170 people. The number of rows is 7 less than the number of seats in each row. How many rows of seats are the
    13·1 answer
  • Simplify this problem!!!
    15·2 answers
  • the length of an arc of a circle is 269⁢πcentimeters and the measure of the corresponding central angle is 65∘. what is the leng
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!