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
Volgvan
3 years ago
7

Find the possible values of the constant k if the roots of the quadratic equation

Mathematics
1 answer:
Anastasy [175]3 years ago
5 0

Answer:

{b}^{2}  - 4ac = 0 \\  { ( - k  - 2)}^{2}  - 4(1)(4)  = 0\\  {k}^{2}  + 4k + 4 - 4 = 0 \\ {k}^{2}  + 4k = 0 \\ k(k + 4) = 0 \\  \therefore \: k = 0 \:  or \: k =  - 4

You might be interested in
What is the manipulative inverse of -1/3
Mkey [24]

Answer:

1/3

Step-by-step explanation:

The inverse is the opposite of a number.

6 0
3 years ago
Read 2 more answers
Mariam and Sana are excited that a new store just opened in town! They go together the first day it opens! Each time Mariam goes
Vadim26 [7]

Answer:

Mariam went to the store 5 times, while Sana went 3 times.

Step-by-step explanation:

Since Mariam and Sana are excited that a new store just opened in town, and they go together the first day it opens, and each time Mariam goes to the store she plans to spend Rs. 30, and each time Sana goes to the store she plans to spend Rs. 50, and a few weeks from now, Mariam and Sana are surprised to find out that they have spent the exact same total amount of money at the store, to determine what is the least possible number of times that Mariam has been to the store the following mathematical reasoning has to be done:

To know how many times Mariam went and how many times Sana went to the store, since she spends Rs. 30 and the other Rs. 50, and they have spent the same after a few weeks, it is through the search for the lower common multiple of both numbers.

Thus, the common multiple less than 30 and 50 is 150 (30 x 5 or 50 x 3). Therefore, Mariam went to the store 5 times, while Sana went 3 times.

8 0
2 years ago
How many 6 ounce cups can you completely fill using a package of Kool-aid that makes two quarts Remember that there are 32fl oz
aliya0001 [1]
You can completely fill 10 cups
4 0
3 years ago
Gina drew a circle with right triangle PRQ inscribed in it, as shown below:
Darina [25.2K]
I think the correct answer is b 75
3 0
3 years ago
Read 2 more answers
Rectangle<br> rhombus<br> square<br> isosceles trapezoid
timofeeve [1]

Answer:

Rhombus

Step-by-step explanation:

It does not have congruent diagonals

7 0
3 years ago
Other questions:
  • What value of x will make the equation true
    11·2 answers
  • BEST ANSWER GETS BRAINLIEST!! HELP PLEASE
    12·2 answers
  • If your rectangular yard is 6 feet wide and requires 78 pieces of sod that are cut into 1 foot squares, how long is it?
    12·1 answer
  • The graph of the function C(x) = −0.52x2 + 23x + 92 is shown. The function models the production cost, C, in thousands of dollar
    12·2 answers
  • b. Tyler practiced the clarinet for 64% as much time as Han practiced the piano. How long did he practice?
    13·1 answer
  • Can someone help me plz
    10·1 answer
  • Find the total cost for a $64 gift that has been marked up 30%. *
    9·1 answer
  • At-home medical test kits have increased in popularity in recent years. This​ year, 380 million test kits are expected to be sol
    11·1 answer
  • Solve the polynomial equation by factoring. <br> 3x^4+11^3-4x^2=0
    8·2 answers
  • Which table correctly identifies the sample space of spinning the spinner and then selecting a card?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!