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
Rzqust [24]
3 years ago
8

Need help I forgot how to do this ​

Mathematics
1 answer:
Marat540 [252]3 years ago
8 0

Answer:

A.

Step-by-step explanation:

you have to find the discriminant

b²-4ac for each equation

if discriminant < 0 no real solutions because will be negative under the squareroot whhan you try to find the roots

if discriminant = 0 there is only one solution

if discriminant > 0 two real solutions

for your given problems

A. discriminant =(-2)²-4*2*15 will be negative

You might be interested in
Free points bc I don't know how to use these things.
34kurt

Answer:

thank you hahahahahahaha <3

3 0
2 years ago
Read 2 more answers
What is the probability of drawing a red card, replacing it, and then drawing an odd card?
harina [27]

Answer:

4

Step-by-step explanation:

5

8 0
1 year ago
Solve for X<br> 14 = 3x + 2
Anit [1.1K]
Answer : 4

Explanation : you minus the 2 on both sides bc they have the same "last name" by doing this you get 12 on the left and elimination 2 on the right which leaves you with 12=3x. Divide 3 on both sides which 12/3 =4 and ur left with x. So the final equation is 4=x
4 0
2 years ago
Read 2 more answers
PLEASEEE HELP What is the solution to the equation represented by the model below?
Sauron [17]

Answer:

C) x=2

3x+8=4x+6

8-6=4x-3x

x=2

~OAmalOHopeO

8 0
2 years ago
Read 2 more answers
Explain how you know that the equations 1/4=2x and 1/4/x=2have the same solution
il63 [147K]

the equations 1/4=2x and 1/4/x=2have the same solution

because 1 / 4/ x = 2 can be simplified to

1 / 4 = 2x which is the same with the first equation

Solve for x = 1/8

Then substitute it to the both equation

¼ = 2 ( ¼)

¼ = ¼

2nd equation

1/ 4 /( 1/8) = 2

2 =2

<span> </span>

4 0
3 years ago
Other questions:
  • Adam was making some brownies and cupcakes for his school fundraiser. If the brownies
    6·1 answer
  • Tina is finding the quotient of (15x^2+12x^2-9x) / 3x=-5x+4-3/x. Is she correct? If not, what changes should be made?
    8·1 answer
  • Find the slope of each line 5x-y=-7
    12·1 answer
  • The function f(x) = Negative Startroot x EndRoot is shown on the graph. On a coordinate plane, an absolute value graph starts at
    15·2 answers
  • What is x^2 = 2y when you have to make the subject x
    9·1 answer
  • HELP ME PLEASE!!!!!!
    15·1 answer
  • Graph 4x^2+4y^2=64. what is the domain and range?
    15·1 answer
  • If a is negative and b is positive, is a2b positive or negative?
    13·2 answers
  • Expand the expression: 1/3(12d + e)
    5·1 answer
  • 1
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!