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
Naily [24]
3 years ago
5

What are the roots for x?

Mathematics
1 answer:
Mandarinka [93]3 years ago
5 0

Answer:

B

Step-by-step explanation:

Use the quadractic equation, x=-b+or-sqrtb^2-4ac/2a, then simplify.

I'm really sorry that it looks messy, I don't know how to make my text look better :(

You might be interested in
The base of a triangle is 7 cm greater than the height. the area is 60 cm squared. find the height and base of the triangle.
tino4ka555 [31]
Base=x+7 Height=x Area=60. 60=((x+7)(x))/2----->60=(x^2+7x)/2

120=x^2+7x X^2+7X-120=0. QUDRATIC FORMULA: -7+/- SQRT(49+480)/2

(-7+/-23)/2... 8 and -15. -15 ISNT the answer because you cant have a negative length. X=8 Base=8+7---->15 Height=8
8 0
3 years ago
Read 2 more answers
What type of triangle is shown here?
Naddika [18.5K]
Equilateral because all sides are equal
5 0
2 years ago
Y=x^2-4x-3<br> y=-2x^2-5x+1
Serggg [28]

Hi! This is the solution of your equation!

Download docx
6 0
3 years ago
Each flower has a specific price. One tulip, one daisy, and 2 mums cost $4.20. On tulip, two daisies and one mum cost $3.80. Two
sineoko [7]

Answer:

The answer to your question is $5.60

Step-by-step explanation:

    1 tulip + 1 daisy + 2 mums = $4.20           (1)

    1 tulip + 2 daisies + 1 mum = $ 3.80         (2)

    2 tulips + 2 mums = $4.80                        (3)

    1 tulip + 3 daisies + 2 mums = ?

tulip = t      daisy = d      mum = m

Process

1.- Find the price of each flower using system of equations

    Solve equation 3 for tulip

     2t = 4.80 - 2 m     divide by 2                            (4)

     t = 2.40 - 1m

2.- Substitute equation 4 in equation 1 and 2

    (2.4 - 1m) + 1 d + 2 m = 4.2

    (2.4 - 1m) + 2d + 1 m = 3.8

3.- Simplify and solve for each flower

     2.4 - 1m + 1d + 2m = 4.2

      1d + 1m = 4.2 - 2.4

      1d + 1m = 1.8                   Equation (5)

     2.4 - 1m + 2d + 1m = 3.8

     2d = 3.8 - 2.4

     2d = 1.4

     d = 1.4/2

     1d = 0.7

4.-  Substitue d in equation 5

     1(0.7) + 1m = 1.8

     0.7 + 1m = 1.8

     1m = 1.8 - 0.7

      1m = 1.1

5.- Subtitute m in equation 4

     1t = 2.40 - 1(1.1)

     1t = 2.40 - 1.1

      1t = 1.3

6.- Result

     1 tulip + 3 daisies + 2 mums cost = 1.3 + 3(0.7) + 2(1.1)

                                                            = 1.3 + 2.1 + 2.2

                                                            = $5.6

8 0
3 years ago
Identify the terms and the like terms in the expression z+8-4z
slamgirl [31]

Answer: -3z+8


Step-by-step explanation: add -4z and z because they are like terms and then leave the 8 alone because it’s a term.


8 0
3 years ago
Other questions:
  • Engineers must consider the breadths of male heads when designing helmets. The company researchers have determined that the popu
    8·1 answer
  • What is the slope of the line passing though the points (2,1) and (1,-4)
    9·1 answer
  • Nolan deposited $2300 into a savings account for which interest is compound weekly at a rate of 2.12%.
    14·2 answers
  • An equation is shown below:
    12·1 answer
  • How do i use gcf with this problem?
    7·2 answers
  • , write equivalent ratios that represent the situation and solve. 12. Angela pays $120 for 4 piano lessons. How much does she pa
    7·1 answer
  • PLZZ NEED HELP ASAPPP :((
    15·2 answers
  • Simplify: j + 5 + 5c
    13·1 answer
  • PLSS HELP. <br> Simplify the expression. Write the answer using scientific notation (7x10^5)^2
    9·2 answers
  • Does anyone know what <br> 3m−7=5<br> is?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!