3 years ago

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

Given f(x)=x-10 . what is f(-7)?

Tomtit [17]

F(-7) = -7 - 10

f(-7) = -17

Hope I helped!

Let me know if you need anything else!

~ Zoe (Rank:'Genius')

8 0

3 years ago

Paula bought a ski jacket on sale for $5 less than half its original price. She paid $87 for the jacket. What was the original p

charle [14.2K]

Answer:

$184

Step-by-step explanation:

87 is 5 less than 1/2 of the price without a sale. in that case 92 would be half the cost. To find the full value you would multiply 92 by two to get 184

3 0

2 years ago

Read 2 more answers

20 points!!!! in2. Round to the nearest whole The area of the figure below is number

andrew11 [14]

Answer:

=760

Step-by-step explanation:

Area: $\pi r^{2}$

diameter= 44

radios= 22

area of full circle:

3.14(22)^2

= 1519.76

Area of half circle"

1519.76/2= 759.88

=760

4 0

2 years ago

Divide the sum of (-24),(-10) and (-40) by the product of (-5) and 3

PilotLPTM [1.2K]

Answer:

4.93333...

Step-by-step explanation:

-24 + (-10) + (-40) = -74

-5 * 3 = -15

-74 /-15 = 4.93333...

5 0

3 years ago

Read 2 more answers

Read the following numbers and write them in expanded form 443 092 101

max2010maxim [7]

1) 400+40+3
2) 90+2
3) 100+1

7 0

2 years ago