x2 + 8x + 20 = 0
Quadratic equation

Answers

Answer 1

Answer:

The answer is x = -4 ± 2i

Step-by-step explanation:


Related Questions

solve . 15 - 10x = 5(x + 9) show your work

Answers

Answer:

x= -2

Step-by-step explanation:

Let's solve your equation step-by-step.

15−10x=5(x+9)

Step 1: Simplify both sides of the equation.

15−10x=5(x+9)

15+−10x=(5)(x)+(5)(9)(Distribute)

15+−10x=5x+45

−10x+15=5x+45

Step 2: Subtract 5x from both sides.

−10x+15−5x=5x+45−5x

−15x+15=45

Step 3: Subtract 15 from both sides.

−15x+15−15=45−15

−15x=30

Step 4: Divide both sides by -15.

−15x/-15 = 30/ -15  

x= −2

Paul reduced his debt from $1600 to $400. What was the percent decrease?

Answers

Answer: 75%

Step-by-step explanation:

The debt went from $1,600 to $400.

Formula when calculating percent decrease is:

= (New price - old price) / Old price

= (400 - 1,600) / 1,600

= -75%

Paul reduced his debt by 75%

Find the measure of angle A.
1+ 38
x + 68
A) 30°
C) 26°
B) 35°
D) 60°

Answers

Answer:

b

Step-by-step explanation:

b

i really need help.......

Answers

A had it before good luck

Answer:

it will option B hope it helps

Please answer this really fast!
Can you please create me an Order of Operations equations with numbers 5,12,5,11,9. And please give me the answers as well! dont forget to use numbers 5,12,5,11,9. for the equation
THANKS SO MUCH!

Answers

Step-by-step answer:  

5(12×11)-(5^5)+9

5(12×11)-3,125+9

5(144)-3,125+9

720-3,125+9

-2,405+9

-2,396

Plzzzzz give me Brainliest!!!!!  

$2500, 4.5%, 2 years

Answers

Answer:

si=part

=2500×0.045×2

=225...

the answer is C

A carpenter sands 1/2 of a dresser in 3/4 hour ,how long does it take the carpenter to sand 1 dresser

Answers

Answer:

1.5 hours = 1 hour 30 mins

Step-by-step explanation:

3/4 = 0.75

0.75 x 2 = 1.5

complete the equation of the line through (-8,-2) and (-4,6). use exact numbers. We need to find out what y=?

Answers

Answer:y = 2x + 14

Step-by-step explanation:

First, you have to find the slope by using

In other words,

The slope is 2.

Then you plug the rest into point-slope form (you can use either of the points, I used the first one)

Remember that m is the slope.

Distribute the slope to the par

Step-by-step explanation: first you do this then that then this then that then this

how to find the surface area of a triangular prism

Answers

Answer:

Triangular prisms have their own formula for finding surface area because they have two triangular faces opposite each other. The formula A=12bh is used to find the area of the top and bases triangular faces, where A = area, b = base, and h = height.

Step-by-step explanation:

find x and y this is geometry

Answers

Y = 4
X = 12
I’m pretty sure^ I did this last unit btw

If it snows 3 inches in 6 hours, how many inches will we have after the 36 hours of snowing from this snow storm?

Answers

Answer:

6 inches of snow

Step-by-step explanation:

6x6=36

snows 3 inches in 6 hours

i

Answer:

18

Step-by-step explanation:

3 inches for every 6 hours. There are 6 6-hour groups in 36, so to find the inches in 36 hours, we would multiply the 3 inches times the 6 groups of 6-hour increments (aka 3*6). 3*6 = 18, so after 36 hours of snowing, we'd end up with 18 inches of snow.

The following graph shows the sales records of four employees over a period of six months.
A graph titled Sales has month on the x-axis and sales (dollars times 1,000) on the y-axis. Mary: Starts at 6.4 and ends at 8.6. Lewis: starts at 5.5 and ends at 6.9. Todd: Starts at 4.6 and ends at 3.3. Paige: Starts at 7.1 and ends at 7.1.
Which employee experienced the single greatest decline in sales between two months?
a.
Mary
b.
Lewis
c.
Todd
d.
Paige

Answers

Answer: D Paige

Step-by-step explanation:

Took the test

The employee who experienced the single greatest decline in sales between two months is Paige.

How to find the function which was used to make graph?

There are many tools we can use to find the information of the relation which was used to form the graph.

A graph contains data of which input maps to which output.

Analysis of this leads to the relations which were used to make it.

A graph titled Sales has a month on the x-axis and sales (dollars times 1,000) on the y-axis.

Mary: Starts at 6.4 and ends at 8.6.

Lewis starts at 5.5 and ends at 6.9.

Todd: Starts at 4.6 and ends at 3.3.

Paige: Starts at 7.1 and ends at 7.1.

The difference between the start sales and end sales represents the greatest decline.

Here, Paige has the least difference.

The employee who experienced the single greatest decline in sales between two months is Paige.

Learn more about finding the graphed function here:

https://brainly.com/question/27330212

#SPJ2

What is the value of y? Show work

Answers

Answer:

Sum of the interior angles of the triangle is 180°.

According to the above problem,

[tex]4y + (y + 11) + 39 = 180 \\ 5y + 50 = 180 \\ 5y = 130 \\ y = \frac{130}{5} \\ \boxed{y = 26}✓[/tex]

y=26° is the right answer.

I'm confused on this, so please help for 10 points.

Answers

Answer:

third one

Step-by-step explanation:

Answer: it would be the third option, (2/5)^4

Step-by-step explanation:

sure thing! so, when all of those fractions in parenthesis, it means they are all going to be multiplied. and, this gets easy! that third option means that all of them are getting multiplied 4 times, which is exactly what the original problem means. hope this helps!

Find the area of a window that measures 3 yards by 3/4 yard

Answers

Answer:

3 x 3/4= 6/4 or 3/2 or 1.5 square yards

Step-by-step explanation:

DO THESE ON A PIECE OF PAPER! PLEASE HELP! QUICK!!DO ALL OF THEM!!!

Answers

Answer:

i cant sseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Step-by-step explanation:

the picture

Answer:

Step-by-step explanation:

It will be a little slanted so i am sorry.

-7n=35
what does n equal and show your steps and ur solution plz thx

reply or answer asap

Answers

The answer is n=-5 my work is in the picture

Answer:

n = - 5

Step-by-step explanation:

The expression is given as ;

-7n = 35

Divide both sides by -7

-7n/-7 = 35/-7

n= -5

The value of n is -5

bro 8.1 • 10-8 is greater than 9.2

Answers

Yep. Correct, I think-

Answer:

Your statement is true

Step-by-step explanation:

:|

I am struggling with math right now this will help out a lot

Answers

Answer:

A car bought every 10 seconds? If that is even true

Step-by-step explanation:

PLZ HELP FASTTTTTT I NEED IT RN

Answers

Answer:

sorry i don't know

Step-by-step explanation:

For the following graphed line, what are the slope and y-intercept

Answers

Answer:

3,5

Step-by-step explanation:

I don't really know about hope this help

y= -7 and -4 + 2y = -2

Answers

Answer:

Hope this helps! :)

*PLEASE ANSWER!!! QUICK*
Which equation has 12 as the solution?

a.) 4x + 2 = 2x + 10

b.) -5 + 2x = 4x - 13

c.) 6x – 7 + 3 = 32 + 3x

Answers

Answer: C

Step-by-step explanation:

6x-7+3 = 32+3x> 6x - 4 = 32+ 3x > 3x = 36 > x = 12

About how many times smaller is 6.05 x 10than 1.23 x 10?

Answers

Answer:

girl ion even kno

Step-by-step explanation:

lol

Answer:

none

Step-by-step explanation:

6.05 * 10 is about 5 times greater than 1.23 * 10, so the question is not correct.

pls help me ❤️ it would be amazing

Answers

Answer:

A)  2x²y³[tex]\sqrt{7xy^2}[/tex]

Step-by-step explanation:

[tex]\sqrt[3]{56x^7y^5}[/tex] = [tex]\sqrt[3]{(2^3)(7)(x^3)(x^3)(x)(y^3)(y^2)}[/tex]   anything inside the radical raised to

                                                                 the third power can be removed to

                                                                  the outside of the radical

= 2(x)(x)(y) · [tex]\sqrt[3]{(7)(x)(y^2)}[/tex]

= 2x²y·[tex]\sqrt[3]{(7)(x)(y^2)}[/tex]

Clear x.
5x-5 one
———= ——-
X-2 3

Answers

Answer:

5x-5 = 5(x−1)

X-23 = =x−23

Step-by-step explanation: hope this help

There were 26 students in the classroom. 14 of the students went to the
cafeteria and the rest went to the gym. What percentage of students
went to the cafeteria?

Answers

Answer:

53.85%

Step-by-step explanation:

14 of the 26 went to the cafeteria

14/26

7/13

Change to decimal form

.538461538

Change to percent form from decimal form

53.85%

Answer:

54% went to the cafeteria

Step-by-step explanation:

14/26= 0.53846153846 or .54

.54*100= 54%

I hope this helps!!!

Sharon owns a car lot in Virginia Beach. For every car that parks in her parking lot, she charges $5.00 per day. She uses this equation to determine her daily income: y = 5x, where x is the number of cars and y is the amount of money earned. What is true about this function?

Answers

Answer and Step-by-step explanation:

Given the function y = 5x where x is the total number of cars parked in her lot and y is the total money earned. Since x is the independent variable as the money earned, y, depends on the amount of cars parked, we can say that the domain (the actual values the independent variable can assume) of this function is:

x = {0, 1, 2, 3, . . .}

This is because x, the number of cars, can never be a negative number..

Also, the range, the set of all the values of the dependent variable y, is: {all the numbers divisible by 5, including 0}

Which statement shows correct reasoning for finding 12+3/8? A Multiply 12 by 8, then divide by 3. B. Multiply 12 by 3, then divide by 8. C. Multiply 3 by 8, then divide by 12 D. Multiply 12 by 1/8, then multiply by 3.​

Answers

Answer:

B

Step-by-step explanation:

plz mark the brainliest. if that is adding not multiplying, you will do 3 divide by 8 first and then add 12. I think its a typo and it is multiply so if it is multiply, it is B. plz mark the brainliest

asap! super urgent! help me outtt :'(

Answers

Answer:

3/47

Step-by-step explanation:

of the 47 total cars, 3 of them are a beige SUV

The correct answer is A, 3/47

You look for the cases where the vehicle is a beige car and an suv, there is three of them. You then divide by the total number of vehicles to find the probability of a beige suv.

Hope this helps your studies.
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