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
Inessa05 [86]
3 years ago
11

Using the quadratic formula, what is the value of x for x^2-4+5=0​

Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
4 0

value of x is: x= i and x= -i

Step-by-step explanation:

We need to find the value of x from x^2-4+5=0​ using quadratic formula.

The term is: x^2+1=0​

The quadratic formula is:

x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\

Where a = 1, b=0,c=1

Putting values:

x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\x=\frac{0\pm\sqrt{(0)^2-4(1)(1)}}{2(1)}\\x=\frac{\pm\sqrt{-4}}{2}\\x=\frac{\pm2i}{2}\\x=\pm i

So, value of x is: x= i and x= -i

Keywords: Quadratic formula

Learn more about quadratic formula at:

  • brainly.com/question/7361044
  • brainly.com/question/10666510
  • brainly.com/question/1332667

#learnwithBrainly

You might be interested in
Please helpppp i don’t understand
atroni [7]

Answer:

Think the answer will just be 5

Step-by-step explanation:

I don't use step by step so yeah

5 0
2 years ago
Help help help ( I WILL MARK YOU AS BRAINLIEST )
nata0808 [166]
The answer is 5z or 5xz Product is just a word for multiply
7 0
2 years ago
Read 2 more answers
Which story problem could be solved using the division problem 30 ÷ 5 = 6?
Lynna [10]

Answer:

"There are 30 chairs in 5 rows. How many chairs are in each row?" Would be the correct story problem.

8 0
3 years ago
Bonnie deposits $70.00 into a new savings account. The account earns 45 % simple interest per year , s added or removed from the
nordsb [41]

Answer:

\$164.5

Step-by-step explanation:

Bonnie deposits $70.00 into a new savings account.

The account earns 45% simple interest per year.

She neither added or removed from the savings account for 3 years.

We know that,

i=\dfrac{P\cdot r\cdot r}{100}

here,

i = interest,

P = principal = $70,

r = rate of interest = 45%,

t = time = 3 years,

Putting the values,

i=\dfrac{70\cdot 45\cdot 3}{100}=\$94.5

So the total amount will be,

=\text{Principal}+\text{Interest}

=70+94.5

=\$164.5

6 0
3 years ago
Read 2 more answers
Which exponential function is represented by the values in the table?
astraxan [27]
ANSWER

The exponential function is
f(x) = 3( {2}^{x} )

EXPLANATION

Let the exponential function that is represented by the values in the table be of the form,

f(x) = a( {b}^{x} )

The points in the table must satisfy this exponential function.


We substitute the point,

(0,3)

to get,


3 = a( {b}^{0} )



This implies that,


3 = a( 1 )


3 = a


Our function now becomes,

f(x) = 3( {b}^{x} )


We gain, plug in another point yo find the value of b too.


Let us substitute
(1,6)


This implies that,

6= 3( {b}^{1} )


We divide through by 3 to obtain,

2 = b


Therefore the function is,


f(x) = 3( {2}^{x} )



The correct answer is A.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Word problems<br><br>kind of urgent
    8·1 answer
  • Use the expression 5x + 2^3 to match the following vocabulary words
    5·1 answer
  • A teacher corrected 8 math quizzes in 16 minutes.
    13·1 answer
  • A bag contains 3 black, 4 red, 3 yellow, and 2 green marbles. What is the probability of drawing a black and then a red marble o
    10·2 answers
  • What is 2 times 2 times 2 times 2?
    8·2 answers
  • NEED HELP ASAP A field's length is 9 meters 40 centimeters. What is the length of the field in millimeters? A)9.24 mm B)940 mm C
    15·2 answers
  • [|(x-4)÷(x+5)|]\leq[4]
    7·1 answer
  • Mariah owed her grandfather 52.25 but was recently able to pay him back $1.50. How much does Mariah currently
    6·2 answers
  • What is the name for an 8-sided polygon
    10·2 answers
  • What is 1 3/4 as a percent
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!