Mathematics High School

if a quadratic equation with real coefficients has a discriminant of -2, then its roots must be

A:2 real
B:1 real
C: imaginary
D:equal​

Answers

Answer 1
The correct answer is C: imaginary.

When the discriminant is negative, this implies that the quadratic equation has no roots (or zeros) in the set of real numbers. The roots belong to the set of complex numbers, and will be called "complex roots" (or "imaginary roots").

Therefore, the correct answer is C: imaginary.

Please mark my answers as the Brainliest if you find this explanation helpful :)

Related Questions

Please help! whoever answers first ill make brainliest! good luck..


Why is it important to make sure the decimal point is in the correct spot when adding and subtracting decimals?

Give an example to help explain your answer. uwu

Answers

Answer:

A decimal in the wrong place can change the value of a number COMPLETELY!

Step-by-step explanation:

for example

0.4 can be converted to 40 cents or 2/5, but if you change the decimal 0.04 converts to 4% or 1/25.

hope this helps!

A ticket to a movie theater costs $5.25. A large lemonade costs $3 and a small popcorn costs $1.55. What is the total cost of going to the movie and buying a large lemonade and a small popcorn?

Answers

Answer:

Your answer is 9.8

Step-by-step explanation:

Well, this is fairly simple... You're adding the cost for the move, the cost for large lemonade, and the cost for a small popcorn.

5.25+3= 8.25 | 8.25+1.55= 9.8

Your answer is 9.8

Answer:

$9.80

Step-by-step explanation:

Add the cost of the ticket, lemonade, and popcorn.

total cost=5.25+3+1.55

total cost=9.8

Which means $9.80

Solve for brainlist ( you can take your time )

Answers

Answer:

Slope for...:

7: 1

8: -2

9: 12/0

10: 4/3

11: 2/-7

12: 0/4

13: -1/3

14: 5/9

15: 1/4

Hope this helps!

javeria left home at 7:10, she walked for 15 mins to the station and walked for 10 mins for a train. she then travelled by train for 45 mins.
at what time did javeria get off the train?
a) 8:25
b) 8:20
c) 8:15
d) 8:10

Answers

Answer: Its B 8:20

Step-by-step explanation:

U get this by adding the 15 minutes to the 7:10 and then u get 7:25 then you add the 10 and u get 7:35 then you add the 45 and you get 8:20

The time at which Javeria gets off the train is 8:20 thus option (b) is correct.

What are work and time?

Work is the completion of any task for example if you have done your homework in 5 hours then you have done 5 hours.

Another example of work is that if you have done your food by 1 hour it means your work duration is 1 hour so work is basically the time duration of any task which you have done.

As per the given,

Javeria left home at 7:10.

Add 15 + 10 + 45 = 70 minutes.

70 minutes = 1 hour + 10 minutes or 1:10

Add into 7:10 as

7 + 1:10 + 10

8:20

Hence "The time at which Javeria gets off the train is 8:20".

For more information about the work and time relation,

brainly.com/question/6912604

#SPJ2

On the first day of football camp there were 106 participants. By the fifth day only 98 remained. Determine the rate of change.

Answers

Answer: The rate of change is -2, meaning that a rate of 2 participants left per day.

Explanation:
Rate of change = change in participants over change in time
98 - 106 = -8
5 - 1 = 4
Rate: -8/4, simplified to -2

solve the inequality -179 greater than or equal to 9v - 8

Answers

Answer:

v ≤ -19

Step-by-step explanation:

3x9 is 27

9,18,27

if you need more support just ask me ;)

Answers

Answer:

genius confirmed?? O.o

Step-by-step explanation:

Manz is too goated on da stix

Wait what’s the question

Pleaseee help me plz

Answers

The answer is 70. When you multiply a negative and a positive you get a negative. For example, -5 x 7 = -35. Now when you have to multiply that by -2, negative times a negative is a positive because they cancel each other out. -2 x -35 =70

Answer:

hey there,

hey there,in this question

-7 is multiply by 5 then multiply by-2

-7×5=-35 -35×-2=70

i want to inform that when minus is mutiply by minus it become plus

Step-by-step explanation:

hope it help you #BEBRAINLY

Answer the question below

Answers

Answer:

0.5 g/cm^2

Step-by-step explanation:

Volume of the cube: Base * height

7 * 2 = 14 * 3 = 42 cm^2

Density of the cube: grams / cm^2

21 grams / 42 cm^2 = 0.5 g/cm^2

there are 75 new houses being built in a neighborhood. last month 2/5 of them were sold. this month 1/5 of the remaining houses were sold. how many houses are left to be sold

Answers

Answer:

30

Step-by-step explanation:

2/5+1/5=3/5 sold

1-3/5=2/5 unsold

2/5*75=150/5=30 houses left to sell

can someone help me understand this

Answers

Answer:

6 favors each guest

Step-by-step explanation:

3 bag if 12 means total 36

She has divided evenly amongst 6 guest .

36/6 = 6each guest.

Answer:

The answer would be 6.

Step-by-step explanation:

Assuming, Amy doesn't have a sweet tooth, she's only giving party favors to her own guests.

There are 3 bags of 12 party favors each. This gives us a total of 36 party favors.

There are 6 guests and so to evenly split the party favors, we must split 36 into 6 groups, giving us 6 party favors in each group.

COMPUTATION:

3 x 12 = 36

36 / 6 = 6

Hope this helps!

Translate the sentence into an equation.

Two more than the quotient of a number and 4 equals 8.

use the variable c for the unknown number.

Answers

Step-by-step explanation:

2 + c/4 = 8

2 more than the quotient of equals 8

a number and 4

After two years, the ash tree grew 51 inches. How much does it grow each year? How tall is in in 5 years? Use the double number line to find your answer.

Answers

Answer: 25.5 inches per year, in 5 years it will be 127.5 inches.

Step-by-step explanation:

it grows 25.5 inches every year, so the math for this is 25.5 x 5

(5 representing the years) and you get an answer of 127.5in.

127.5 in 5 years and 25.5 per year

Have some points! (o˘◡˘o)
Since you all work so hard ( ˙▿˙ ) <3

Answers

Answer:

1+1=3

Step-by-step explanation:

11x-6=60 please give details

Answers

Answer:

6

Step-by-step explanation:

11(6)-6=60

11 x 6 = 66

66-6 = 60

Therefore, x=6

Ezra's pool table is 5 feet wide and 9 feet long. Ezra wants to replace the felt on the pool
table. The felt costs $2.85 per square foot. How much would it cost in total to replace the felt
on the pool table?

Help me please!!!!

Answers

5x9= 45 so there is 45 square feet

45 x 2.85= 128.25
The answer is $128.25 I believe

What is b^2 x a^1 x e^1 ?

Answers

Answer:

b²ae

Step-by-step explanation:

What is the y-intercept of this graph?​

Answers

Answer:

0,0

Step-by-step explanation:

To find y-intercept You look where the line touches the y-axis and vice-versa if you want to find teh x-intercept

What is the value of a?



a–2=3+6a
--------
3

Answers

Answer:

a = 17 / 11

Step-by-step explanation:

or, a - 2 = 3(3 + 6a)

or, a - 2 = 9 + 18a

or, - 2 - 9 = 18a - a

or, -11 = 17a

or, a = 17 / 11

Due 10/2
for School: Practice & Problem Solving
X 1.9.PS-16
Question Help
5
Challenge Between 9 P.M. and 6:10 A.M., the water level in a swimming pool decreased by in.
24
Assuming that the water level decreased at a constant rate, how much did the water level drop
each hour?
The water level decreased by in. each hour.
(Simplify your answer. Type an integer, proper fraction, or mixed number.)
Enter your answer in the answer box and then click Check Answer.
All parts showing
Clear All
Check Answer

Answers

Answer: The water level drops each hour by 0.1472 inches/hour.

Step-by-step explanation:

We are given that Between 9 AM and 6:10 AM the water level in a swimming pool decreased by 5/12 inches assuming that the water level decreased at a constant rate.

Firstly, we will find the number of hours between 6:10 AM and 9 AM, that is;

Number of hours = From 6:10 AM and 9 AM, there are 2 hours and 50 minutes

So, Number of hours =  = 2.833 hours

Also, the water level in a swimming pool decreased by =  = 0.417 inches

Now, to find how much did the water level drop each hour, we will divide the amount of water level in a swimming pool decreased by the time interval given, that is;

=

= 0.1472 inches/hour.

This means that the water level drops each hour by 0.1472 inches/hour.

0.1472 as a fraction is 92/625

PLZZZ HELPPPP ILL MARK BRAINLIEST TO FIRST AND CORRECT ANSWER THAT HAS WORK AND A THX TO SECOND AND CORRECT ANSWER.

The reciprocal of 5/9 is 3 Times greater than

F. 5

G. 3/5

H. 5/3

J. 1/3

Answers

Answer:

the answer is 5/3.

Step-by-step explanation:

 

Solve for y:
y + 2 = 3x

Answers

Y: 1 Y is 1 becuase 1 +2 =3 so y=3

The table shows the total number of customers at a car wash after 1, 2, 3, and 4 days of its grand opening. which graph represent the data shown in the table?

Answers

Answer:

Has to be the first one....

Step-by-step explanation:

jamie is filling up her swimming pool. She already had 10 gallons in it. She opened the hose to fill it up the rest of the pool at 20 gallons per hour
A.) Write a function for given scenario.
B.)Would the graph be continuous or discrete?

Answers

A.) 20x+10
B.) continuous

How many inches are in 4 meters? meters > feet inches 4 m/1 × a/b × c/d = 157.48 in. 1. b d b



a =
b =
c =
d = ​

Answers

Answer:28 / 4 = -7.

Step-by-step explanation:

28 / 4 = -7.28 / 4 = -7.28 / 4 = -7.

Can someone help me with this please

Answers

Answer:

I don't really get the question but I'm guessing an acute angle

The answer would be angle Q. So just put Q in that box.

Help me simplify the expressions pleaseddees.....!!!! It's in a picccc​

Answers

Answer:

answer in explanation

Step-by-step explanation:

1. = 7x

2. =10x+ 7y

3. =8A + 10B - 1C

4. = 9M + 13N

5. = 5 x+ 9y + 18z

6. = 6x

7. = 20B

8, = 40C

9. = -18w

You don’t need to answer all of them but !!!! Find the measure of the indicated angle that makes lines u and v parallel. Plzzzzz! U DONT HAVE TO DO ALL OF THEM

Answers

Answer: 13) 90 degrees, 14) 137 degrees, 15) 93 degrees 16) 96 degrees

Step-by-step explanation:

Answer:

13) ?=90°

14) ?=180°-48° (int angles, u//v)

=132°

15) ?=93° (alt angles, u//v)

16) ?=96° (alt angles, u//v)

Which table represents a linear function.

Answers

Answer:

The one you have selected is correct.

Step-by-step explanation:

Answer:

its b

Step-by-step explanation:

its b

(っ◕‿◕)っ Please help Asap, Tysm!
An employee works 6 hr. on Monday, 8 hr. on Tuesday, and 9 hr. on Wednesday and received a $51 bonus. What is his hourly pay rate if his gross income (before deductions) was $350 for the three days?

Answers

Answer:

40.8

Step-by-step explanation:

When you divide 350 by 51 you get 6.8. Multiply that by 6 you get 40.8

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