if the sum of roots of the quadratic equation x^(2)-3kx-(k+2)=0 is equal to the product of roots,find k

Answers

Answer 1

Answer:

1/2

Step-by-step explanation:

quadratic equation is ax²+bx+c=0

Products of roots is c/a

Sum of roots is -b/a

On comparing the above equation with general equation we have

a=1

b=-(3k)

c=-(k+2)

Now it is given that sum of roots and product of roots is equal

So,

-b/a=c/a

-b=c

-[-(3k)]=-(k+2)

3k=-k-2

3k+k=-2

4k=-2

k=-1/2


Related Questions

Convert 48 fluid ounces to cup I need help

Answers

Answer:

6 Cups

Step-by-step explanation:

There are 8 fluid ounces in a cup, 48 divided by 8 = 6

Leah products that she will need to contribute $7,000 each year for her College tuition she already has $4,000 in savings and the table shows the total value she will have in her account at the end of four years depending on how much he deposits if Leah wants enough after 4 years to cover her contribution for the first two years of college what is the minimum amount she should deposit each month

Answers

she should deposit 200$ each month

Hope this helps :)

Step-by-step explanation:

7,000×4=28,000

28,000÷2=14,000

Solve for m angle DBC.

Answers

Angle CBA = Angle DBC + Angle ABD
78 = Angle DBC + 47
78 -47 = Angle DBC
Angle DBC = 31

t = mx
Solve equation for m

Answers

Answer:

M=t/x

Step-by-step explanation:

I love these math problems! Do u have more? I really need something 2 do

So answer is m =t/x you welcome

A clothing store is having a one
day sale offering 20% off all
merchandise. If Claudia spends
$99.84 on the day of the sale,
excluding sales tax, what would the
purchase have cost her at full price?

Answers

o saw this question om edge its b

Two angles are complementary. One angle is 52°. How many degrees is the other angle?

Answers

Answer:

B

Step-by-step explanation:

Complementary angles sum to 90° then the other angle is

90° - 52° = 38°

Answer:

B 38°

Step-by-step explanation:

complementary angles are two angles that up to 90°, since we know one is 52°, 90-52=38, so your answer is 38

Which statement(s) most directly apply to communism?

I. There is little or no private ownership.
II. Businesses are operated for the benefit of the people as a whole.
III. Individuals who take risks can gain great profits.
a.
I and II
b.
II only
c.
II and III
d.
I and III


Please select the best answer from the choices provided

A
B
C
D

Answers

Answer:

A

Step-by-step explanation:

In the beginning, there was little or no private ownership. Cucumbers are a pretty interesting example. We had an exchange student who said all the cucumbers were raised on one collective the size of 10 sections. He didn't know how many people were on that farm but it employed many people. The farm was located near a very large city so transportation was not a problem. The state owned the farm.

The second one is a result of the first one. Collectives are not meant to benefit the individual. They benefit everyone.

Three is a characteristic of free enterprise.

A: I and II

Answer:

a.

I and II

Step-by-step explanation:

Please answer correctly!! I’ll mark as brainliest!

No links no fake answers

Answers

Answer:

6) 33

7) 26.5

..................

Angelina got 19 out of 25 questions on her science test correct. What percentage did Angelina get on her math test?

Answers

Answer:

76%

Step-by-step explanation:

Convert the fraction 19/25 into decimal

19/25 = 0.766

Multiply the decimal by 100: 0.76 × 100 = 76%

Answer:

76%

Step-by-step explanation:

19/25×100

76%

In order for you to get the percentage, you multiply the fraction of gotten out of total to 100

Find the distance between the pair of points.
(3, 3) and (3,-4)

Answers

Distance between two points
√0+49=
√49
= 7
Distance between points (3, 3) and (3, -4) is 7

See picture

find the equation to the line below acellus y=

Answers

Answer:

y=mx+C

or

y= m(x-x1)+y1

Solve for c.

4+c= 10

Answers

Answer:

c = 6

Step-by-step explanation:

have a nice day :)

Answer:

c=6

Step-by-step explanation:

4+c=10

4-4 +c =10-4

c=6

Tammy bought yogurt and toppings at the frozen yogurt shop. She paid $7.80 for yogurt and toppings that weighed a total of 15 ounces. Which table represents the same relationship between cost in dollars, c, and ounces of yogurt and toppings, o? Group of answer choices

Answers

Step-by-step explanation:

zoom I'd - 9038735228 pwd -97cEeT I m getting bored wanna come for intresting talk

The relationship between cost in dollars, c, and ounces of yogurt and toppings, o is c = 0.52o

What is linear equation?

An equation between two variables that gives a straight line when plotted on a graph.

Given that, Tammy bought yogurt and toppings at the frozen yogurt shop. She paid $7.80 for yogurt and toppings that weighed a total of 15 ounces.

Cost of 1 ounce of yogurt and toppings = 7.80/15 = 0.52

The equation for finding the cost c for o ounces of yogurt and toppings = c = 0.52o

Hence, The relationship between cost in dollars, c, and ounces of yogurt and toppings, o is c = 0.52o

For more references on linear equation, click;

https://brainly.com/question/11897796

#SPJ2


someone please help meeee !! I would really appreciate it

Answers

Answer:

cos 25° = X/11

and

sin 65° = X/11

is this good enough or do you need more workings?

Answer:

C = 90°

Step-by-step explanation:

The interior angles in every triangle are equal to 180 degrees. So, this means that

[tex] \alpha + \beta + \gamma \\ = 180 \: degrees[/tex]

Which means that A + B +C = 180 degrees

A=25°

B = 65°

C =?

C = 180° - (A + B)

C = 180° - (25° +65°)

C = 180° - 90°

C = 90°

Erica had 30 dollars to spend on 3 gifts. She spent 10 7 10 dollars on gift A and 6 2 5 dollars on gift B. How much money did she have left for gift C?

PLZ HELP

I'm stuck on this :

Answers

Answer:

She went over her amount of money on her first two gifts so she has no money left for gift C.

Step-by-step explanation:

Gift A = 10 + 7 + 10 = 27

Gift B = 6 + 2 + 5 = 13

27 + 13 = 40

She went over her amount of money on her first two gifts so she has no money left for gift C???

Did you mean to put that many numbers for each gift or is there some kind of mistake in the question?

find the measures of the missing angles in the parallelogram.

Answers

Answer:

p = 32       o = 148       q = 148

Step-by-step explanation:

Which two of the following have the same value as 50.96?
Choose 2 answers:

Answers

Answer:

A and C

Step-by-step explanation:

A: 5 tens = 50

9 tenths = 0.9

6 hundreths = 0.06

= 50.96

C: 5*10 = 50 + 9 * 1/10 = 0.9 + 6 * 1/100 = 50.96

please help me with the answer, ive been stuck on getting both answers for a while now ty

Answers

Answer:

[tex]3x + x - 17 + 13 = 116 \\ 4x = 120 \\ x = 30 \\ g = 73 \\ h = 43[/tex]

plz help like i need it-​

Answers

Answer:

dont know if its a good answer but

Step-by-step explanation:

The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.

Interval Notation:

(

,

)

Set-Builder Notation:

{

x

|

x

R

}

The range is the set of all valid  

y

values. Use the graph to find the range.

Interval Notation:

(

,

)

Set-Builder Notation:

{

y

|

y

R

}

Determine the domain and range.

Domain:  

(

,

)

,

{

x

|

x

R

}

Range:  

(

,

)

,

{

y

|

y

R

}

sorry if put wrongly

Answer:

Step-by-step explanation:

Which expression is equivalent to 30 ÷ ( 3 + x)?

Answers

Answer:

???

Step-by-step explanation:

Please put down the answer choices?? Cant help much

what 20% of 21 bucks

Answers

Answer: 4.2

Step-by-step explanation: 20 x 21

100

= 4.2

The function ƒ(x) = 2x − 1 indicates:

a downward shift of 1 unit.
a shift of 1 unit to the left.
an upward shift of 1 unit.
None of these choices are correct.

Answers

Answer:

the function f(x) = 2x - 1 indicates:

a downward shift of 1 unit

as the y-intercept: (0, -1)

List the sides of DEF in order from shortest to longest.

Answers

4cm to the bright side and left to 50

What does "m" represent in y=mx+b

Answers

m represents the slope of the line

Answer:

M represent the slope.

Step-by-step explanation:

Slope-intercept form:

y=mx+b

The m represents is the slope.

The b represents is the y-intercept.

4. A sequence of transformations was applied to an equilateral triangle in a coordinate plane.
The transformations used were rotations, reflections, and translations. Which statement about
the resulting figure is true?
A. It must be an equilateral triangle with the same side lengths as the original.
B. It must be an equilateral triangle, but the side lengths may differ from the original
triangle.
C. It may be a scalene triangle, and all the side lengths may differ from the original triangle.
D. It may be an obtuse triangle with at least one side the same length as the original triangle.

Answers

Step-by-step explanation:

A It must be an equilateral triangle with the same side lengths as the original triangle

Which decimals are greater than the one shown in this diagram? HALP

Answers

Answer:

0.4 > 0.27

Step-by-step explanation:

0.4 is more if you look at the diagram

Answer:

The sign is >. Some decimals that are greater are 0.60, 0.94, and 0. 65.

Charlotte works at an electronics store as a salesperson. Charlotte earns a 10% commission on the total dollar amount of all phone sales she makes, and earns a 4% commission on all computer sales. Charlotte had twice as much in computer sales as she had in phone sales and earned a total of $162 in commission. Write a system of equations that could be used to determine the dollar amount of phone sales Charlotte made and the dollar amount of computer sales she made. Define the variables that you use to write the system.

Answers

Answer:

I think it's 0.648

Step-by-step explanation:

10% of 4% of 162 = 0.648

Answer:

I think it's 0.648

Step-by-step explanation:

Help me with this pleaseeee

Answers

Answer:

A, B, C.

Step-by-step explanation:

State if the three numbers can be the measures of the sides of a triangle
5, 12, 10
Yes
No

Answers

No it can not since two of the sides of a triangle are the same. Don’t click the links!


Help this is due in 2 minutes

Answers

Answer:

The value of the machinery after 5 years is $236.20

Step-by-step explanation:

Generally, we have the depreciation exponential expression as;

V(t) = I (1 - r)^t

V(t) is the value of the machinery at a point in time

I is the initial value or the cost of the machinery when bought which is $400

r is the rate of decrease which is 10% and is same as 10/100 = 0.1

t is the time which is 5 years

Substituting these values;

V(5) = 400( 1 - 0.1)^5

V(5) = 236.196

to the nearest vent, this is $236.20

Other Questions
what is geothermal energy What proof of Chicago's reputation as brutal does the poem's speaker give?The speaker thinks the people who live in Chicago are insensitiveThe speaker has seen dogs fighting in the streets.The speaker thinks the people who live in Chicago grab all the weThe speaker has seen hungry women and children. what is 3c-9d+7c+5d simplified 5points on disadvantage of fungi PLEASE HELP DUE IN 1 HOUR Help me !!!! What would be the mRNA sequence made from the strand: ATC-AGG Read the following paragraph:Paul was raised in a tough neighborhood by people who did their best to survive. He watched peer after peer, like Marco, succumb to the temptations of the streets. He watched other peers, like his brother Laurence, keep their heads down, try to dodge trouble as best they could, and grab the meager chances that came their way and hang onwith all their might. How could he explain why some went down one path and some another? How could he guess which path would be his?What does the comparison between Marco and Laurence most clearlyillustrate?A. An example of the character traits that lead to success or failureB. How people in the same situation are very similar, despite theirdifferent goalsC. The different options available to Paul in his own lifeD. Paul's belief that personal success has purely individual causes PLEASE help plssss no links and silly answers The photograph below shows an important event in United States history. Which statement describes the factors that led to this event? Angry Russian leaders decided to take revenge on the United States after losing the Cold War. U.S. airplanes had more accidents after federal deregulation of the aviation industry. Islamic Fundamentalist terrorists organized the attack because of their hatred toward America.President Saddam Hussein of Iraq launched the attack as a warning to American leaders. Help me with number 5 please Im really bad at Spanish please tell me the answer Why does the sun appear brighter than the other stars in the universe 10.RRECIBIZEIDSERLADSort the words A little piece of paper,That makes a letter go;A foot that strikes the floor hard,While someone hollers, No! The statement below comes from 10 U.S. Code, Section 838. The trial counsel of a general or special court-martial shall prosecute in the name of the United States, and shall, under the direction of the court, prepare the record of the proceedings. Which type of law does this statement illustrate? Group of answer choices constitutional criminal military civil. What has been the main drawback of globalization for the United States?A. Lost tariff reven lysB. Wage reductionsC. Higher pricesO D. Slow economic growthSUBMIT Ms. T. Potts, the treasurer of Ideal China, has a problem. The company has just ordered a new kiln for $464,000. Of this sum, $58,000 is described by the supplier as an installation cost. Ms. Potts does not know whether the Internal Revenue Service (IRS) will permit the company to treat this cost as a tax-deductible current expense or as a capital investment. In the latter case, the company could depreciate the $58,000 straight-line over 5 years. The tax rate is 30% and the opportunity cost of capital is 5%.a. What is the present value of the cost of the kiln if the installation cost is treated as a separate current expense?b. What is the present value of the cost of the kiln if the installation cost is treated as a part of the capital investment? Mr. Wedmore works at a car dealership and earnsa monthly salary of $2,000. He also earns 25%commission on the gross profit of the car sales. IfMr. Wedmore brought in $10,000 worth of profitfor the dealership, how much would he earn thismonth? Sue receives a monthly salary of $500. She also receives a sales commision of8% of her total sales. Her total sales this week were $2,500. Find hercommission and total sales. The theater from the previous question sold a total of 97 tickets on the night they made $1048. Write and solve a system of equations to determine the number of adults who bought tickets that night. how and why are organisms classified according to shared characteristic