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
Phantasy [73]
3 years ago
15

Dan said that if a quadratic equation does not have any real solutions , it is not a function . Critique his reasoning

Mathematics
1 answer:
dangina [55]3 years ago
8 0
<span> Solutions of a quadratic functions are x-intercepts, or when y equals zero. A graph with its maximum (highest point) below the x-axis or a graph with its minimum (lowest point) above the x-axis never touches or crosses the x-axis, so it has no real solutions. It is still a quadratic function, as long as it has a variable to the second power (definition of quadratic) and passes the vertical line test (definition of function). 

Hope this helped! <3

</span>
You might be interested in
PLSSSSSSSSSSS HELPPPPPPP
olya-2409 [2.1K]
2.A
3.C
Hope this helped!!!
7 0
3 years ago
A probability experiment is conducted in which the sample space of the experiment is upper s equals startset 4 comma 5 comma 6 c
olchik [2.2K]
The correct question statement is:

A probability experiment is conducted in which the sample space of the experiment is S = {4,5,6,7,8,9,10,11,12,13,14,15}. Let event E={7,8,9,10,11,12,13,14,15}. Assume each outcome is equally likely. List the outcomes in E^{c}. Find P(E^{c}).

Solution:

Part 1:

E^{c} means compliment of the set E. A compliment of a set can be obtained by finding the difference of the set from the universal set. The universal set is the set which contains all the possible outcomes of the events which is S in this case.

So, compliment of E will be equal to S - E. S - E will result in all those elements of S which are not present in E. So, we can write:

E^{c}=S-E \\  \\ &#10;E^{c}=(4,5,6,7,8,9,10,11,12,13,14,15)-(7,8,9,10,11,12,13,14,15) \\  \\ &#10;E^{c}=(4,5,6)

Thus the set compliment of E will contain the elements {4,5,6}.So

E^{c} = {4,5,6}

Part 2)

P(E^{c}) means probability that if we select any number from the Sample Space S, it will belong the set E compliment.

P(E^{c}) = (Number of Elements in E^{c})/Number of elements in S

Number of elements in set S = n(S) = 12
Number of elements in set E^{c} = n(E^{c})=3

So, 

P(E^{c})= \frac{n(E^{c}) }{n(S)} \\  \\ &#10;P(E^{c})= \frac{3}{12} \\  \\ &#10;P(E^{c})= \frac{1}{4}
7 0
3 years ago
Find c such that (−3,−8), (−7,−6), and (c,4) lie on a line.
bearhunter [10]
If the 3 points are collinear, then the slopes of all line segments connecting the points are the same.

Thus,

-6 - (-8) 2
m = ------------- = -------- = -1/2
-7 - (-3) -4

Then the following must be true:

4-(-6) 10
-1/2 = ------------ = ---------
c - (-7) c + 7

Cross multiplying, -(c+7) = 20, and c+7 = -20, so that c = -27
7 0
3 years ago
Five friends each knit one part of a scarf that is 11 yards long. 12 Which shows the fractions of the scarf each friend could ha
kotegsom [21]

Answer:

2/12 + 3/12 + 3/12 + 2/12 + 5/12

Step-by-step explanation:

I hope I'm right

3 0
3 years ago
Which expression represents the determinant of A=[-6 -7 -4 -2<br> ]
hram777 [196]
Is that the whole problem?
6 0
3 years ago
Read 2 more answers
Other questions:
  • The diagram shows the net of a square pyramid.
    10·1 answer
  • C(3 − a) − c 2 ; a = 4 and c = −1
    7·2 answers
  • Which sentence would be a good counter example to this statement ?
    8·1 answer
  • Can someone do 15?!?!?
    10·1 answer
  • if I eat 230 gumballs and there was a total of 1696 and my friend takes the rest of the 1760 gumballs. how did we get 1760 if th
    13·2 answers
  • What is the measure of angle C
    5·1 answer
  • A group of 4 friends go out for dinner and the total cost of the dinner is $200. They use a $40 coupon before splitting the bill
    6·2 answers
  • Hey guys ( or gals ) I have no idea what to do please help me.
    7·1 answer
  • I have a bad memory,i learned this but I forgot it (I swear I'm not lying)
    7·1 answer
  • What is the value of z? Plz help
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!