Mathematics College

Using the quadratic formula, the solutions to a quadratic equation are given by (equation is in image)

Find the values of a, b and c
a =
b =
c =

Using The Quadratic Formula, The Solutions To A Quadratic Equation Are Given By (equation Is In Image)Find

Answers

Answer 1

Answer:

a = -3

b = 3

c = 4

Step-by-step explanation:

Let's do this the long way!

[tex]x = \frac{-3 \pm\sqrt{3^2 - 4 \times (-3) \times 4}}{2 \times (-3)}\\-6x = -3 \pm\sqrt{3^2 - 4 \times (-3) \times 4}\\-6x + 3 = \pm\sqrt{3^2 - 4 \times (-3) \times 4}\\(-6x + 3)^2 = 3^2 - 4 \times (-3) \times 4\\36x^2 - 36x + 9 = 9 + 48\\36x^2 - 36x - 48 = 0\\3x^2 - 3x - 4 = 0[/tex]

So a = 3, b = -3, and c = -4

HOWEVER:

When you look at the terms in the solution originally given, the are all the negatives of what we see here.  That however makes sense, as we can simply multiply both sides of the equation to get the results they used:

[tex]3x^2 - 3x - 4 = 0\\-1(3x^2 - 3x - 4) = -1(0)\\-3x^2 + 3x + 4 = 0[/tex]

Related Questions

what is 2-2? i dont know

Answers

I think 0? Correct me if I’m wrong

Answer:

2-2 = 0

Step-by-step explanation:

2 is a positive number

While the second 2 is a negative 2

(-2)

so a positive and a negative number can cancel eachother out

Therefore the answer is 0 since they are both 2 :)

Hector bought 6 bags of candy. There were 7 pieces of candy in each bag. How many pieces of candy did Hector buy?

Answers

Answer:

42 pieces (6*7)

Step-by-step explanation:

please mark brainliest, give a thanks, and rate a five stars if this helped! feel free to ask anymore questions if you need any more help! thanks!

(lol optional): add my sc: tealyn337

Answer: 42 Pieces of candy

Step-by-step explanation:

Just simply multiply 7 times 6

help plzzzzzzz
15 points for that​

Answers

Answer:

You just find the volume of the cup and subtract the volume of the froth (whatever that is).

V(cup) = pi * r^2 * h

...........= pi * 4.3^2 * 11.2

...........= 650.586cm^3

V(froth) = pi*r^2*h

............= pi*4.3^2*0.4

.............=23.232cm^3

V(hot chocolate) = V(cup) - V(froth)

.........................= 650.586 - 23.232

.........................= 627cm^3

The school show choir is holding a car wash to raise $350 for
new costumes. After spending $30 on supplies, the students will
wash cars for donations of $6 each.
This situation can be modelled by the inequality 6C + 30 > 350,
which has the solution c> 53.33. What is the best way to
interpret this solution?
A. Show choir needs $53.33 to meet their goal.
B. Show choir should have spent another $53.33 on supplies.
C. At least 54 show choir students must participate in the car
wash.
D. Show choir needs to wash at least 54 cars.

Answers

Answer:

D.

Step-by-step explanation:

It’s the only option that makes sense. Option A. Is invalid because they need to make $350. Option B. Is just purely invalid and has no context to support the theory. C. Is possible, but we can have students wash more than one car, so we don’t need fifty four kids.

D. Is your answer.

Hope this helped!!

LunarRose3

Guess the rule and add the next number in the sequence.
6, 8, 12, 18, 26,

Answers

Answer:

The rule: Adds twice as much as the previous number added

Next number: 38

Step-by-step explanation:

Answer:

36

Step-by-step explanation:

The rule is every time you add 2 so 6 plus 2 equals 8 them you would do 8+4=12. your counting by 2 as u go up the line.

18 percent of what number is 74

Answers

Answer:

411.1111111

Step-by-step explanation:

18% of x = 74

Convert 18% into a decimal.

0.18 • x = 74

Isolate x by dividing by 0.18.

x = 411.1111111

Check answer.

0.18 • 411.1111111 = 74

74 = 74

Which could be the name of a plane?

A. JK
B. M (kinda cursive)
C. h
D. GH

Answers

Answer:

gh i think im not sure but that might be right i hope

Answer:

jk

Step-by-step explanation:

para jungkook de jk lang

Help babyyyy I need itttt

Answers

Answer:

4

Step-by-step explanation:

Graph the line that passes through the points (-6,5) and (-9,9) and determine
the equation of the line.

Answers

Y= -3/4x -3
Hope this helps

15-24 divide3 •2+13= Simplify the expression

Answers

Answer:

7

Step-by-step explanation:

Given: 15 - 24 divide 3 . 2 + 13 =

The expression can be solved step-wisely so as to determine the appropriate answer.

So that,

15 - 24 = -9

-9 ÷ 3 = -3

-3 . 2 = -6

-6 + 13 = 7

The required answer to the expression is 7.

Thus,

15 - 24 divide 3 . 2 + 13 = 7

Help me please :(((((

Answers

727727 is your answer :)

Barry saved $7 less than Nadine. Together they saved $25.
How much did Nadine save?

Answers

Answer:

$16

Step-by-step explanation:

25-7 = 18

18 ÷2 = 9

9 + 7 = 16

Find the difference. Enter your answer in simplest terms, using the slash (1)
as the fraction bar.
5/8 - 1/3 =?

Answers

Answer:

the difference between 5/8 and -1/3

is that  if you divide 5/8 = 0.625

and -1/3= -0.333333333

78 miles in 3 days, how many in 5 days

Answers

Answer:

390 but i might be wrong

Step-by-step explanation:

Answer:

130

Step-by-step explanation:

26 miles per day 5 days is 130 miles

Rana and Josie are cooking food for a party they need to cut up the food so people can share

Answers

Answer:

You didn't put a file or a question in ya question..

Step-by-step explanation:

Answer:

Hey there is nothing to solve here

Step-by-step explanation:

Please make something so we can solve it.

Find the missing angle.

Answers

add all the angles and subtract that number from 360. missing angle: 87

Answer:

75

Step-by-step explanation:

All the angles would add up to 360

145+55+35+55=285

Then:

360-285=75

>ZUW=75

Find the inequality by the graph

Answers

Answer:

y > 1/3 x -3

Step-by-step explanation:

slope = 1/3

y intercept = -3

equation: y > 1/3 x -3

Simplify the following expression (2x^2y^5)^3

Answers

Answer:

The correct answer is,

[tex] {8x}^{6y {}^{5} } [/tex]

the range of the quedractic function is {y|y

Answers

well I have no idea what that means but I hope you find your answer

Answer: The question is incomplete, Hope I could've helped.

Please and thanks DUE IN 5min

Answers

Answer:

3 and 1/4

Step-by-step explanation:

Urgent help need it plz​

Answers

Answer:

angle 1 = 51

angle 2 = 34

angle 3 = 95

angle 4 = 38

angle 5 = 47

angle 6 = 74

angle 7 = 59

Step-by-step explanation:

a straight line is 180 degree, so to find angle 1, subtract 129 by 180.

angle 2 is found by adding angle 1 and 95 then subtract that by 180.

angle 3 and 95 are opposite angles, so they are the same

for angle 4, add angle three and 47 then subtract that by 180

angle 5 is 47, they are opposite

angle 7, subtract 121 by 180

angle 6, you add angle 5 and 7, and subtract that by 180

they already answered! but good luck :)

Here is a easy one if you are low on points

Answers

Answer:

11x -21= 180

11x=201

18.2727273

Step-by-step explanation:

Please help! I'll mark brainliest!! :)

Answers

Answer:

Area =  201  1/4 yard^2

Or in decimal form: 201.25 yard^2

Step-by-step explanation:

First convert the mixed numbers into improper fractions or even decimal form  so it is easier to operate with them:

Base = 11  1/2 yards = 23/2 yards = 11.5 yards

Height = 17 1/2 yards =  35/2 yards = 17.5 yards

Use the formula for the area of a parallelogram:

Area = Base x Height

which in our case give:

Area = 23/2 x 35/2 = 805/4 yard^2 = 201  1/4 yard^2

Or in decimal form: 201.25 yard^2

How do you live a normal average life?

Answers

Answer:

by being normal UvU

Step-by-step explanation:

Common sense

"Normal isn't a thing because you are living your own life, it's your choice to make" -MikuHatsunepink

I know this is old, but someone's answer was deleted so I put this here

need help asap please

Answers

Answer:

[tex]\displaystyle no[/tex]

Step-by-step explanation:

The triangle on the right is shorter than the triangle on the left, plus you an clearly see that we do not have enough information as proof that we cannot use this theorem.

I am joyous to assist you at any time.

If y=1.8x, then k is equal to...
Is there no solution?

Answers

Answer:

There no solution, because there have no k in this equation.

write an equivalent expression in standard
form and collect like terms.
2x - (x + 8) - 4

Answers

Answer:

3x-12 because you distribute and then collect like terms

Simplify the following expression 5^-3

Answers

Answer 1/25 or decimal 0.008

Step-by-step explanation:

Answer:

0.008

Step-by-step explanation:

helo

Need help ( 8th grade math)

Answers

It would be -3/1. This is because you find where it crosses the Y axis which is at 4. Then you go down three and over one to give you the next even point. Which going down to the right means it’s negative. Hope this helps! Please mark branlist if possible!!

Slope=Rise/Run

=y2-y1/x2-x1

Take any two co-ordinates

-2-4/2-0

-6/2

-3

Rewrite as a simplified fraction. 0.51 = ?
the one is repeating btw​

Answers

Answer:

17/33

Step-by-step explanation:

100 x = 51.51

100 x − x = 51.51 − 0.51

99 x = 51

divide both sides by 99 to get  x  as a fraction.

x=51/99

=17/33

Answer:

23/45

Step-by-step explanation:

This is directly from Khan academy itself as I got this question too.

(The red marker is the incorrect answer I put in before.)

Other Questions
1. What field of social science is being studied if a historian is examining how a wheel maker trades his product with others within his community?GeographyEconomicsPolitical ScienceArcheology A rock is thrown upwards from the edge of a 52foot cliff and eventually falls to the ground. The graph below shows the height ,y, of the rock from the ground after x seconds. For which interval is the rocks height always increasing ? Can anyone help me with these two problems. Ill mark you as a brainliest. someone help pls jasndjfhajewodjwadknamkfwjdw Write as an equation: After withdrawing $7 from a checking account, Carla's balance was $89.A. w7=89B. 7w=89C. w+89=7D. w=897 TRUE OR FLASE The Battle of Fort Moultrie allowed the British to get a foothold in South Carolina ? * I will give brainlist Mya bought 8 slices of bread for $2.40 at her local grocery store. How much would apackage with 12 slices cost at the price per slice?Work Space The Circle and CircleTester have been created, but they have errors. The public and private settings for variables and methods are not all correct. Your job is to go through and fix them. You will need to make edits in both files to get them working correctly, but once complete, your output should match the output below. Sample Output: Circle with a radius of 5.0 The diameter is 10.0 The perimeter is 31.41592653589793 CIRCLE.JAVA public class Circle { public double radius;private Circle(double myRadius) { radius = myRadius; private void setRadius(int myRadius){ radius = myRadius; } private double getDiameter() { return radius*2; } public double getRadius() { return radius; } private double getPerimeter() { return Math.PI*getDiameter(); } private String toString() { return "Circle with a radius of " + radius; } } CIRCLE TESTER.JAVA public class CircleTester { public static void main(String[] args) { Circle circ = new Circle(10); circ.radius = 5; System.out.println(circ); System.out.println("The diameter is " + circ.getDiameter()); System.out.println("The perimeter is " + circ.getPerimeter()) } } Help plsssssssss?????? *Calcium, oxygen, and neon are allO.elementsO.mixtures.O.compounds.O.ions. Plz help due today i really need help with this plz help meeeeeee A car is traveling at 120 km/h (75 mph). When applied the braking system can stop the car with a deceleration rate of 9.0 m/s2. The typical reaction time for an alert driver is 0.8 s versus 3 s for a sleepy driver. Assuming a typical car length of 5 m, calculate the number of additional car lengths approximately it takes the sleepy driver to stop compared to the alert driver. Group of answer choices Besides The United States, What other countries claimed territory on the continent of North America? use the following words and use them in a sentence. 1. melancholy 2. forbidden 3. decree 4. emigrate 5. capitulate 6. restrictions 7. prohibit 8. sacrifices Your friend Nathan is asking you a lot of questions. Answer using an indirect object pronoun.ModleTu as dj tlphon Delphine?Non, je ne lui ai pas encore tlphon.1. On va prter nos B.D. Tao et Franck? Oui,2.Est-ce que le prof va envoyer un e-mail avec tous les devoirs Paul et moi? What is the number one food crop that isnt harvested by combines? please help and u get a cookie Proceed through meiosis to anaphase I. Which chromosomes went up and which went down? Up: Down: Please help, I really need this. Is Fiber a Nutrient or Food Group?