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
riadik2000 [5.3K]
3 years ago
10

Determine all values of k for which the roots of the equation x^2-6x+k=0 are complex

Mathematics
1 answer:
MaRussiya [10]3 years ago
6 0
Complex roots occur when b^2 - 4ac is negative.

So we have (-6)^2 - 4.1.k < 0
                      -4k < - 36
                       k > 9
You might be interested in
BRAINLIEST WILL BE GIVEN TO 1ST ANSWER THAT IS RIGHT
Anna [14]

The given info is sufficient to warrant the conclusion that both triangles are 45-45-90 triangles.

The measure of angle B is 45 degrees, or pi/4 radians.

The cosine of this angle B is 1/√2, or √(2)/2. This is approx. 0.707.

3 0
3 years ago
Read 2 more answers
A quarterback throws a football to a teammate. The football is 6.5ft above the ground when it leaves the quarterback's hand. His
Nuetrik [128]

Answer: v= 56 ft per second


Step-by-step explanation:

Given: A quarterback throws a football to a teammate.

Projectile motion formula is given by :-

h(t)=-16t^2+vt+h_0, where h_0=6.5

Now, to find  v at h=5 and t=3.5, substitute these values in the above equations, we get

5=-16(3.5)^2+v(3.5)+6.5\\\Rightarrow5=-16(12.25)+3.5v+6.5\\\Rightarrow5=-196+6.5+3.5v\\\Rightarrow\ 5=-189.5+3.5v\\\Rightarrow\ 3.5v=5+189.5\\\Rightarrow\ 3.5v=194.5\\\Rightarrow\ v=55.57142\approx56



6 0
3 years ago
Read 2 more answers
Mrs. vargas bakes a pie for her book club meeting. the shaded part of the diagram below shows the amount of thw pie left after t
Rasek [7]
I saw the figure of the pie. It is a circle with 8 slices. 4 slices are shaded, the other 4 are not.

So 4/8 or 1/2 of the pie is left. 
Mr. Vargas eats 1/4 of the whole pie. 

8 slices * 1/4 = 8/4 = 2 slices.

Out of the 4 slices remaining, Mr. Vargas ate 2 slices.

That left 2 slices from the original 8 slices.

2/8 = 1/4 of the pie remained.
8 0
3 years ago
Please help me.
Kipish [7]

Answer:

B(3)

Step-by-step explanation:

reorder 1,2,3,4,5

middle number is 3

7 0
3 years ago
10 times as much as 9
sesenic [268]

Answer:

90

Step-by-step explanation:

10 x 9

=> 90

10 times 9 is 90.

4 0
3 years ago
Other questions:
  • Help??? What is 3x+5x=67y?
    6·2 answers
  • Find the smallest positive integer that is greater than $1$ and relatively prime to the product of the first 20 positive integer
    7·1 answer
  • -9/4 v + 4/5 = 7/8 v=? step by step need help asap please
    14·1 answer
  • Y=-1/3x complete the table below
    6·1 answer
  • What is the equation of the midline of the sinusoidal function?
    8·2 answers
  • The distance covered by one step is 2.5 feet long. how many steps would the average person take to travel 50 feet
    5·2 answers
  • How many edges does a 3D pentagon have
    14·1 answer
  • A yoga studio offers memberships that cost $20 per month for unlimited classes. The studio
    5·1 answer
  • Please help me due tomorrow
    5·1 answer
  • Two letters are selected at random from the letters of the word Television. Find the probability that both of them are same lett
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!