Find the discriminant of the quadratic equation.

2i2+6i=4

Answers

Answer 1
[tex] {2i}^{2} + 6i = 4 \\ {8i }^{2} = 4 \\ 8i = \sqrt[2]{4} \\ 8i = 2 \\ i = \frac{2}{8} \\ i = \frac{1}{4} [/tex]

- BRAINLIEST answerer


Related Questions

Help help math please please

Answers

Answer:

x = 42

Step-by-step explanation:

2x + 8 + 2x + 4 = 180

4x + 12 = 180

4x = 168

x = 42

I don’t know but I really need answers I don’t know but I really need

What is the sum of 4 of the interior angles of a regular octagon?

Answers

Answer:

540°

Step-by-step explanation:

inter angle vertex = 135°

135 + 135 + 135 + 135 = 540°

An executive has 6 skirts, 8 jackets, and 6 blouses that all coordinate. If an outfit consists of one skirt, one
jacket, and one blouse, how many different outfits does she have?

Answers

Answer: 288

Work Shown:

6*8*6 = 288

Why does this work? Consider a table that is 6 rows by 8 columns. The rows represent the number of skirts and 8 is the number of jackets. That produces 6*8 = 48 different skirt & jacket combos. We can extend this idea out to any number of items instead of just 2.

Answer:

6

Step-by-step explanation:

you keep counting until you reach the lowest number of whatever you need to make it equal

6-1-1-1-1-1-1

6-1-1-1-1-1-1

8-1-1-1-1-1-1

Prepare a mixture of 300 mL of 70% alcohol and 200 mL of 95% alcohol. What is the percentage strength of the final solution?

Answers

Answer:

Step-by-step explanation:

300(0.70) + 200(0.95) = (300 + 200)x

                             400 = 500x

                                  x = 0.80

                                          80%

urgent help now plz i will give brainlest

Answers

Answer:

Step-by-step explanation:

First get the (m) which is the gradient by using the formula y2-y1/x2-x1

Pick any random 2 values from the table. I will pick. (1,4) (2,8)

Y2=8  Y1=4   X2=2  X1=1

8-4/2-1    4/1  = 4

Y=4x+c

Find the measure of the angle ACD in the given figure???

Answers

Answer:

∠ACD = 33.5°

Step-by-step explanation:

The arc length will be twice ∠ ABD,

∠ABD will equal ∠ACD because they subtend the same arc length.

3x + 7 = 2(2x - 6.5)

3x + 7 = 4x - 13

x = 20

∠ABD = (2(20) - 6.5) = 33.5



What is the slope of the line?

Answers

y = 4x - 3
Hope this helps

WILL AWARD BRAINLIEST AND 5 STAR
2. Marcus is writing the program for a video game. For one part of the game, he uses the rule
(x, y) ➡️ (x + 8, y – 3) to move points on the screen.
(a) What output does the rule give when the input is (-2, 1)? Show your work.
(b) What output does the rule give when the input is (0, -5)? Show your work.
(c) Is the rule a function? Explain why it is or why it is not.

Answers

(a) -2 + 8, 1 - 3
(6, -2)
(b) 0 + 8, -5 - 3
(8, -8)
(c) Yes, the rule is a function because x will never overlap with x and y will never overlap with y, when graphed it passes the vertical line test.

Answer:

I might be getting somthign comfised but here is what I derived from it.

Step-by-step explanation:

Marcus uses a rule of (x+8, y-3). What will be the output if the input is (-2,1) and (0,-5).

If it is going off of the math functions then the outputs would be simple math -

(6, -2) -2+8 and -3+1; (8, -8) 0+8 and -5-3 [if im doing the correct functions].

The X and Y is what gets me when trying to answer if it is a function or not, I would say it is because the x and y values are given and they are their values are substituted, the actual function is adding the 8 to the X and subtracting the 3 from the Y.

Hope this helps some

A dog slept from 10:51 p.m. to 1:22 a.m. how long does a dog sleep

Answers

Answer:

2 hours and 31 minutes

Step-by-step explanation:

10:51 +9 =11:00

+ 2 hours = 1:00 +22 = end time

so added together 22+9= 31 + the 2 hours = 2 hours and 31 minutes

Tony bought a skateboard online. It cost $96 plus 20% shipping and handling. What was the total cost?​

Answers

The answers would be 480

Leonard conducts a study to see if the number of hawks in a park affects the number
of squirrels. What is the response variable in this study?
A.The number of hawks in the park
B.The number of squirrels in the park

Answers

In the experiment, the response variable is the dependent variable, or the measured variable.

The response variable in the study is; B. The number of squirrels in the park

Reasons:

The study Leonard conducts is a study to determine if the number of

hawks located in the park affects the number of squirrels in the park.

The response variable is the variable of the experimental result, which is

the dependent or output variable obtained by manipulating the input

variable.

In the experiment conducted by Leonard, the variable that is being

manipulated, which is the input variable is the number of hawks in the park

The variable that is being measured, which is the output variable or the

response variable, is; B. the number squirrels in the park.

Learn more here:

https://brainly.com/question/14662435

please help me i’ll give brainlist

Answers

Answer:

See explanation below

Step-by-step explanation:

1. 0.65 = 65/100

not 65/1000

65/1000 is 0.065. We want 0.65.

2. 0.65 = 65/100 = 13/20

Silvia is planning to use a 4-year loan to purchase a car.
• The price of the car is $8,575.
• The amount of interest she will have to pay on the loan is $1,036
Silvia will combine the price of the car and the amount of interest to determine how much she must repay. She will make 48 equal monthly
payments.
Which of the following is the best estimate of each monthly payment Silvia will make?
A. $175
B. $200
C. $225
D. $250

Answers

Answer:

B

Step-by-step explanation:

8575 + 1036 = 9611

9611 is the full payment

9611 / 48 months = 200.229

About $200 every month

The best estimate of each monthly payment that Silvia will make is given by: Option B: $200

What to calculate net payable amount after interest is applied?

The net payable amount is the sum of main amount to be paid + the amount of interest.

For this case, it is specified that:

The price of the car is $8,575.The amount of interest she will have to pay on the loan is $1,036

Thus, we get:
Total payable amount by Silvia for car purchasing = $8575 + $1036 = $9,611

This payable amount is divided in 48 equal parts. The value of each part (the monthly payment amount by Silvia) is:

[tex]\dfrac{9611}{48} \approx 200 \: \rm dollars[/tex]

Thus, the best estimate of each monthly payment that Silvia will make is given by: Option B: $200

Learn more about division here:

https://brainly.com/question/26411682

Prepare a mixture of 100g of 8% cream into 200g of 3% cream. What is the resulting concentration?

Answers

Answer:

14=300X

X=14/300

X=.04667 OR 4.67%

Step-by-step explanation:

100*.08+200*.03=(100+200)X

8+6=300X

14=300X

X=14/300

X=.04667 OR 4.67% SOLUTION ANS.

If this process is wrong, let me know

Please help my son asked me for this and I don't understand it.

Answers

Answer:

y = 2x + 3

Step-by-step explanation:

In the slope-intercept form of the equation of a line,

y = mx + b,

m = slope, and b = y-intercept.

Let's look at Adriana's equation and understand the parts:

y = 2x + 4

y = mx + b

m = slope = 2; b = y-intercept = 4

Now let's look at the description of Henry's equation.

He has the same slope as Adriana, so for Henry, m = 2 also.

His y-intercept is 1 less than Adriana's, so it is 1 less than 4. Henry's y-intercept is 3.

Now that we know that for Henry, m = 2, and b = 3, we can write his equation.

y = mx + b

y = 2x + 3

Answer: y = 2x + 3

Answer:

y=2x+3

Step-by-step explanation:

The answer is gonna be y=2x+3. The 2 is the slope so it needs to stay the same. the 4 in the original equation is the y intercept so to move it one unit lower you just subtract 1 and get your answer

Find the distance from point $A\left(15,-21\right)$ to the line $5x+2y\ =\ 4$ . Round your answer to the nearest tenth.

Answers

The distance from point (15,-21) to the line 5x + 2y = 4 is 27.5 units

Given the coordinate (15, -21) and the line 5x + 2y = 4

In order to get the point on the line 5x + 2y =4, we can a point on the line

Let x = 0

5(0) + 2y = 4

2y = 4

y = 2

The point (0, 2) is on the line.

Find the distance between the point (15, -21) and (0, 2) using the distance formula

[tex]D=\sqrt{(2+21)^2+(0-15)^2} \\D=\sqrt{23^2+15^2}\\D=\sqrt{754}\\D= 27.46units[/tex]

Hence the distance from point (15,-21) to the line 5x + 2y = 4 is 27.5 units

Learn more here: https://brainly.com/question/22624745

What are equivalent ratios for 32/8

Answers

Hey there!

32/8

= 32 ÷ 8 / 8 ÷ 8

= 4 / 1

Therefore, your answer should be: 4:1 or 4/1

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

A pair of sunglasses is on sale 30% off. if the original cost of the sunglasses are $18, what is the sale price now?

Answers

Answer:

12.60

Step-by-step explanation:

I don't feel like explaining it, since I'm not good at giving detail sorry <3

12.60 I hope this helps …………..

If 1,600 divided by n = 4, what is the value of n?
A 40
B 400
C4,000
D40,000

Answers

Answer:

B) 400

Step-by-step explanation:

To find the value of n, you would have to divide 1600 by 4. 1600/4=400.

Answer:

400

Step-by-step explanation:

1600 4

Rice is being poured into a cylindrical container with radius 4.5 inches so
that the height of the rice is increasing at a constant rate of 0.5 inches per
second. At what rate is the volume of rice in the container increasing at
the instant when the height is the same as the radius? (=2ℎ)

Please help

Answers

asked:the istant of height is the same as the radius

given facts:cylindrical container with radius 3.5 inches height of rice increasing 0.5 inches per second

solve hidden given:(4.5+o.5+2)

what operation to be used: addition and subtraction

solve+4.5+05+2=6.0

chec: 6.0-4.5=1.5

Find the equation of the line which passes ​​​​​​through (0,7) at a gradient of 3

Answers

Answer:

y=3x+7

Step-by-step explanation:

y=mx+c

we have (0,7). (x,y)

so y-7/x-0=3

multiply by (x-0) both sides to get

y-7=3x take -7 to the other side of equal sign

it will be: Y=3X+7

help me with this i dont understand

Answers

Answer:

4

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

The scale factor is the ratio of the corresponding sides.

Take the base of both quadrilaterals.

Large quadrilateral:

6 - (-6) = 12

Small quadrilateral:

2 - (-2) = 4

Scale factor:

k = 12/4 = 3

The ratio of 70 minutes to 2 hours is

Answers

Hey there!

70 minutes

= 1 hour 10 minutes

2 hours

= 60 minutes * 2 minutes

= 60 minutes + 60 minutes

= 120 minutes

70/120

= 70 ÷ 10 / 120 ÷ 10

= 7 / 12

Therefore, your answer is: 7:12 OR 7/12

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

I RELLY NEED HELP RIGHT NOW

Answers

Answer: 28

Step-by-step explanation:

A woman wants to get to two destinations, A and B. From home to A there are 5 possible routes. From A to B
there are 5 possible routes. How many possible routes are there from home to B, if all of them go through A first?

Answers

From home to A has 5 routes. Ex: Route A,B,C,D,E.

A to B has 5 routes. Ex: Route F,G,H,I,J

The shorter way is 5x5 = 25

The longer way is A.F , A.G, A.H, A.I, A.J. + B.F, B.G, B.H, B.I, B.J and continue on...

Plz help I need help

Answers

Answer:

a is 4 because 4 x 16=20 i hope this help

Answer :

a + 16 = 20

a = ?

a = 20 + 16

a = 36

a = 36 ✔️

If point S ( 3, 4 ) is reflected across the line y=1, what are the coordinates of its reflections image?

Answers

Answer: C

Step-by-step explanation: If point P(3,10) is reflected across the line y=1, the coordinates of it's reflection image is (3,-8)

write an equation of the line below

Answers

Answer:

y=-x-2

Step-by-step explanation:

The slope is negative 1 and the y intercept is -2

Which of the following angles is corresponding with 25?
02
07
08
04

Answers

Answer:

∠7    . However ∠7 and ∠8 are vertical angles which are equal,

Step-by-step explanation:

Angle ∠7, but because ∠7 and ∠8 are vertical angles and they are equal also.

 ∠5 corresponds to ∠7

m ∠7  = m ∠8    vertical angles are =

I will say ∠7 and ∠8.

(9x+3)5 i really need help with this pleaseeee

Answers

Answer:

1/15

Step-by-step explanation:

Thats my guess I think its that though.

Answer: 3

Step-by-step explanation:

PEMDAS

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