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 :)

Help me please :(((((

Answers

727727 is your answer :)

Help babyyyy I need itttt

Answers

Answer:

4

Step-by-step explanation:

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.)

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 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

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

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

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

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.

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

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

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

Please and thanks DUE IN 5min

Answers

Answer:

3 and 1/4

Step-by-step explanation:

Here is a easy one if you are low on points

Answers

Answer:

11x -21= 180

11x=201

18.2727273

Step-by-step explanation:

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

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

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.

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

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

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

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.

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

Answers

Answer:

The correct answer is,

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

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

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

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.

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.

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

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 :)

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

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