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
jarptica [38.1K]
3 years ago
13

2x^2+3x+5=0 what are all the complex solutions?please i need help!!!

Mathematics
2 answers:
blagie [28]3 years ago
7 0
2x^2+3x+5=0

Step 1: Use quadratic formula with a=2, b=3, c=5 ^^ than do ^^

There is no real solutions I'm pretty sure!

Hope this helped!!

vesna_86 [32]3 years ago
4 0
You'll want to use the quadratic formula:

-b (+/-) sqrt(b^2 - 4ac), all divided by 2a.

Under the square root you'll get:

-11

remember that the square root of -1 is i.

sqrt(-11) can be factored to sqrt(11*-1) and then sqrt(-1) * sqrt(11)

which becomes i*sqrt(11)

so your complex solution is:

-3 (+/-) (i*sqrt(11)), all over 4
You might be interested in
The lengths of the diagonals of a rhombus are 18 cm and 24 cm. What is its perimeter and what is the distance between the parall
SpyIntel [72]
Try this option:
note, that distance between the parallel sides is shown via formula of area.
If it is possible, check the arithmetic.

5 0
4 years ago
Read 2 more answers
Michael is buying a pair of jeans that regularly cost $40. They are on sale for 20% off. If the tax rate is 8%, what is the sale
Anna35 [415]

Answer      

Find out the  what is the sale price of the jeans including tax .

To prove

Let us assume that the sale price of the jeans including tax be x .

As given

Michael is buying a pair of jeans that regularly cost $40.

They are on sale for 20% off.

If the tax rate is 8% .

20% is written in the decimal form

= \frac{20}{100}

= 0.20

8% is written in the decimal form

= \frac{8}{100}

= 0.08

Than the equation becomes

x = 40 - 40 × 0.20 + 40 × 0.08

x = 40 - 8 + 3.2

x = 43.2 - 8

x = $35.2

Therefore the sale price of the jeans including tax be $ 35.2 .



4 0
4 years ago
What is the range of f(x) = 3X + 9?<br> {yly&lt;9}<br> {yly&gt;9}<br> {yly&gt; 3}<br> {yly&lt;3}
4vir4ik [10]

Answer:

the set of all real numbers

Step-by-step explanation:

f(x) = 3X + 9 is a polynomial, and so both the domain and the range are "the set of all real numbers."  

None of your answer choices match this.  Check with your teacher if you can.

7 0
3 years ago
Which equation has the same solution as 10x-x+5=4110 x − x + 5 = 41?
Tatiana [17]
D or the last dot how ever you wanna describe it
6 0
3 years ago
can someone help me with the 6 questions I'm sorry I know it's hard to see and I will tell you the questions
Sveta_85 [38]
1. 9
2. 9
3. ??
4. 12:15
5. Cant see
6. 8
6 0
3 years ago
Read 2 more answers
Other questions:
  • PLEASE HELP ASAP!!!!
    12·1 answer
  • Write each set in the indicated form.
    12·1 answer
  • For all real numbers a and b, if ab=0, then a=0 or b=0. True or false?
    9·2 answers
  • Write the equation that shows 40 is 8 times more than 5
    10·1 answer
  • HELP PLS o 9 10 11 Are the triangles below acute, obtuse, or right? Triangle A Triangle B Triangle C Triangle D 55 80° 600 35 11
    8·1 answer
  • A remote control car moves at a constant rate of 600 yards in 6 minutes. How many feet can the car go in 20 seconds?
    5·2 answers
  • What are some ways I can have a good wardrobe without breaking the bank?
    11·1 answer
  • I need this before 10 so please answer quickly
    15·1 answer
  • Hi, may someone help me with this?
    8·1 answer
  • What is the midpoint of a line segment connecting the points (−4,6) and (8,2)?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!