What methods do you know that can be used to solve a quadratic equation?

Answers

Answer 1

Answer: If the quadratic equation has real, rational solutions, the quickest way to solve it is often to factorise into the form (px + q)(mx + n), where m, n, p and q are integers. This is especially true where the coefficient of x2 is 1.

Example 1 - Solve x2+7x+12=0

Step-by-step explanation:

that's the only one I remember

Answer 2

Answer:

factoring, using the square roots, completing the square and the quadratic formula.

Step-by-step explanation:

Related Questions

In BOMAMS 'M' stands for

Answers

M stands for Multiplication.

⠀⠀⠀⠀⠀⠀⠀⠀⠀➥ B = Bracket

⠀⠀⠀⠀⠀⠀⠀⠀⠀➥ O = Open

⠀⠀⠀⠀⠀⠀⠀⠀⠀➥ D = Division

⠀⠀⠀⠀⠀⠀⠀⠀⠀➥ M = Multiplication

⠀⠀⠀⠀⠀⠀⠀⠀⠀➥ A = Addition

⠀⠀⠀⠀⠀⠀⠀⠀⠀➥ S = Subtraction

Answer:

B= Bracket

O= Open

D=Divide

M=Multiplication

A=Addition

S=Subtraction

Describe a way to make the arithmetic problem 45% x 680 mentally

Answers

Answer:

306.

Step-by-step explanation:

Firstly, we are aware 100% of 680 is obviously 680,

Next, we know half of a 100% is 50% therefore half of 680 is 340.

Then, we know 45% is 5% less than 50%

To find 5% of a number mentally, divide it by 10 as 100÷5=20

680÷20=34

Lastly 50% subtracted by 5%: 340-34=306.

Now we know, 45% of 680 is 306.

Hope this helps.

Hope this helps.Please mark BRAINLIEST.

Help somone please and thank you

Answers

Answer:

120 students

Step-by-step explanation:

4/7×210=120 students

Fred borrows $2710 at 3.8% simple interest per month. When Fred pays the loan back 3 months later, what is the total amount that Fred ends up repaying?

Answers

Answer:

3,018.94

Step-by-step explanation:

Which is the label of the ordered pair (1,3)?
1. V
2.W
3.X
4. Y
5. Z

Answers

Answer:

dude. its 4.Y

What is 6 tens = ? Ones

Answers

6 tens would be 60 ones

Triangle ABC, with A = (-2,3) B = (-4,1) and C = (-3,5), is rotated 90- clockwise about the origin to make Triangle A'B'C'. What are the y-coordinates of B'?

Answers

Answer:

Step-by-step explanation:

-1

For functions f(x) = x + 2 and g(x) = 8x2 - 2x + 4,
find the following.
(Simplify your answers completely.)

(a) (fºg)(x) =
(b) (f. g)(-1) =

Answers

Answer:

Sorry im not ood at math so i cant help

Step-by-step explanation:

1. find the measure of each angle

Answers

Step-by-step explanation:

adding both equations together makes the straight line that is QRS. straight lines are 180

you should picture a windshield wiper going side to side and you're trying to see how much farther it has to move until it straightens out at the bottom

(3x-5) + (10x-7) = 180

Is is possible to divide Pi aka : 3.14159

Answers

Answer:

If you WANT to divide pi, there is half a pi left.

Step-by-step explanation:

There are 2pi radians in a circle. So one quarter of the circle corresponds to half of pi (If you want to divide to get half of pi) . So it would then be: one quarter corresponds to a half.

(if that makes sense! sorry if it doesn't :\ )

(two digit number with the sum of the digits being 8)

Answers

Answer:

The two digit numbers having sum equal to 8 are: 17,26,35,44,53,62,71,80.

Step-by-step explanation:

Ten times the smallest of three consecutive integers is 213 more than the sum of the other two integers. Find the integers.

Answers

Answer:

27,28 and 29

Step-by-step explanation:

10*a = a+1+a+2+213

10a - 2a = 216

8a = 216

a = 27

27, 28, and 29

For the simple linear equation below, what is the y-coordinate of the ordered pair when the x-coordinate is -15? y=4/5x Enter your answer in the box.(-15, )

Answers

Answer:

The answer is -12

Step-by-step explanation:

what is the total surface area of the prism in square inches

Answers

Answer:

Surface area of a square prism = 4 × (s × h) = 4sh, where, s is the length of the side of the square and h is the height of the square prism.

Graph and solve the following system.

у= 2x + 3

y = -2x + 3

Answers

graphed in the image attached with points,

hope this helps :D

y=4x+2 and y=-x-3. Graph

Answers

Answer:

(Hope this helps can I pls have brainlist (crown)☺️)

Step-by-step explanation:

In pic

(Credit: M a t h w a y )

Hopfuly someone will help me this time!

Answers

Answer:

Step-by-step explanation:

Fatima drove 100 miles in 4 hours. What is the constant of proportionality for 100 miles in 4 hours and 200 miles in 8 hours? Please answer ASAP.

Answers

Answer:

Step-by-step explanation:

4 hours goes into 100 miles 25 times.

solve pls brainliest

Answers

Answer: (a.) +3 meters each second (b.) +80 Celsius

Step-by-step explanation:

(a.) 18/6 =+3 meters each (b.) 4*20=+80 Celsius

(b.) 4*every hour=

which one is this a b c d e the thing on the side dosent matter

Answers

Answer:

21.5m²

Step-by-step explanation:

Area for a square: LxW = A

10x10=100m²

Area for a circle: pi r² = A

pi(5)²=78.5m²

Find the difference:

100m²-78.5m² = 21.5m²

How to type a line above the number 6 on chromebook.

Answers

Answer:

you put in the number 6 but you leave room uptop so enter and then put 6 for the----- so in other words

-----

A class of 40 students took a test 20 students had an average score of 65. the other students had an average score of 52. what is the average score of the whole class?

At a health club, 28% of the members are men, the rest are women. If the average man is 33 years old, and the average woman is 38 years old, what is the average age of all the members?

Answers

Answer:

One: 58.5

Two 36.6

Step-by-step explanation:

One

20 students * 65 = 1300 This is the total score of all 20 students. They may not all get 65, but 1300 is what their average total is.

20 students * 52 = 1040

The total score of all 40 students was 1300 + 1040 = 2340

The average for the entire class was 2340 / 40 = 58.5

Two

This question is done almost the same way.

Supposes the total number of members is 100. That means that 28 of them are men

28 * 33 = 924 This is the total age for the men

100 - 28 = 72 Out of 100, 72 of the people there are women.

72 * 38 = 2736

The total number of years of all of the members is

924 + 2736 = 3660

The average age of all members is 3660/100 = 36.6

Why did I pick 100 as the total membership? It is because a percentage is number out of 100. Am I allowed to invent things like that? Sure. I'm just using the definition of a percentage.

The average will make it come out the same.

Your friend is absent from class and asks you to explain what a function is how would you explain

Answers

Answer: A function is the equation used to solve a variable, usually uses X and Y.

i.e. Y = 23x -9

First convert the equation -x+y=-5 into slope intercept form. Graph the line by plotting the y-intercept first, then another point using the given slope.

Answers

Step-by-step explanation:

-x + y = -5

Transform to slope-intercept form, y = mx + b:

-x + x + y = x - 5

y = x - 5 (Slope-intercept form where m = 1, b = -5).

Plot the y-intercept (0, -5) on the graph. Using the "rise over run" of the slope, m = 1, the next point will be: (1, -4).

I also plotted other points (please see the attached screenshot of the graph).

help please if you can. Thank you

Answers

27/50 is the answer. Why? Because 54 and 100 are both divisible by 2. hope this helps

Answer:

6/11

Step-by-step explanation:

I don't know that's what my mom said

1.) if a person weighs 160 pounds, what is his mass in kilograms

Answers

Answer:

72.56

Step-by-step explanation:

Divide the number of pounds by 2.205

160/2.205 = 72.56

What is the sum of the columns and rows?

Answers

Answer: 90

6+15+24=45

45*2=90 (the numbers are the same so just x2)

MATH WEEK 5 DISCUSSION

Answers

5 ————————————————————————-

solution needed step by step

Answers

Answer:

I am doinnnng ok just wait

Answer:

Points again!!!

Step-by-step explanation:

Hey thanks

What is the slope-intercept form of -8x-2y=-24

Answers

Answer:

y=−4x+12

Step-by-step explanation:

y=−4x+12

Hope that helps

Other Questions

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