HARD QUADRATICS!!!! A quadratic of the form $-2x^2 + bx + c$ has roots of $x = 3 + \sqrt{5}$ and $x = 3 - \sqrt{5}.$ The graph of $y = -2x^2 + bx + c$ is a parabola. Find the vertex of this parabola.

Answers

Answer 1

Answer:

hold up this will take a min to work out

Step-by-step explanation:


Related Questions

4x^3(5x) = what,
will mark brainliest

Answers

Answer:

the answer is 20x^4

Step-by-step explanation:

too long to explain, simple answewr

Plz help
What is the y- intercept of f(x)=(1/4)^x

Answers

The answer is A (0,1).

To find the x intercept, set the x to equal 0 in the equation. When there is an exponent of 0, the base number will be 1. Therefore, the coordinates are (0,1)
(1/4)^0 = 1 so the intercept is (0, 1)

Lauren, Shannon, and Maddie all work at a restaurant. Lauren earned $11.00 less than 3 times the amount Maddie earned. ShWhich equation below correctly represents the situation above?annon earned $9.00 more than 2 times the amount Maddie earned. If Lauren and Shannon both earned the same amount of money, how much money, m, did Maddie earn?

Answers

Music us enter a memento ---L'ordinateur

Salim wants to purchase tickets from a vendor to watch a tennis match. The vendor charges a one-time service fee for processing the purchase of the tickets. The equation T = 15n +12 represents the total amount T, in dollars, Salim will pay for n tickets. What does 12 represent in the equation?

Answers

Given:

The equation [tex]T=15n+12[/tex] represents the total amount T, in dollars, Salim will pay for n tickets.

To find:

What does 12 represent in the equation?

Solution:

The vendor charges a one-time service fee for processing the purchase of the tickets.

We have, the equation

[tex]T=15n+12[/tex]

Here, 15 is the coefficient of n and 12 is constant.

If n is number of tickets then 15 must be the price of each ticket.

12 is free from variable and it is fixed. So, it represents one-time service fee for processing the purchase of the tickets.

Therefore, 12 represents that one-time service fee for processing the purchase of the tickets is $12.

If f(x) = 2x^2-4x-3
and g)-2x^2-16. find f(x) + g(X)


4X^24X +13
4XN2-4x-13
4X- 19
4X^2- 4x -19

Answers

Answer:

-4x - 19

General Formulas and Concepts:

Algebra I

Combining Like Terms

Step-by-step explanation:

Step 1: Define

f(x) = 2x² - 4x - 3

g(x) = -2x² - 16

Step 2: Find f(x) + g(x)

Substitute:                              f(x) + g(x) = 2x² - 4x - 3 - 2x² - 16Combine like terms (x²):        f(x) + g(x) = -4x - 3 - 16Combine like terms (Z):         f(x) + g(x) = -4x - 19

Let f(x) = 5x-7 and g(x) = 2x-3. Find f(x)+g(x)

Answers

Answer:

7x - 10

Step-by-step explanation:

f(x)= 5x - 7

g(x)= 2x - 3

f(x) + g(x)

= 5x - 7 + 2x - 3

= 7x - 10

The sum of f(x) and g(x) is 7x - 10.

To find the sum of f(x) and g(x), you simply need to add the two functions:

f(x) + g(x) = (5x - 7) + (2x - 3)

Now, combine like terms:

f(x) + g(x) = 5x + 2x - 7 - 3

f(x) + g(x) = 7x - 10

Therefore, the sum of f(x) and g(x) is 7x - 10.

Learn more about functions here:

https://brainly.com/question/21145944?

#SPJ2

I’m timed!! Please help me!!
Which statement is true?
А. The function f(x) tan(x) is an odd function because $(-) = -f(x).
В.The function f(1) = tan(t) is an even function because its graph is symmetric about the origin.
C. The function f(t) tan(r) is an odd function because its graph is symmetric about the y-axis.
D.The function f(t) tan(x) is an even function because f(-1) =

Answers

Answer:

We conclude that the function f(x) tan(x) is an odd function because f(-x) = -f(x).

Hence, option (A) is true.  

Step-by-step explanation:

We know that if function is even, then f(-x) = f(x)We know that if the function is odd, then f(-x) = -f(x)

We also know that

tan x = sin x / cos x

so

f(-x) = sin (-x) / cos (-x)

       = -sin (x) / cos (x)

       = -tan (x)

       = -f(x)

Thus, tan (x) is an odd function.

Therefore, we conclude that the function f(x) tan(x) is an odd function because f(-x) = -f(x).

Hence, option (A) is true.  

Answer:a

Step-by-step explanation:

plato

how do i write a linear equation and graph it

Answers

y= mx+b
b= y intercept
mx= slope
slope= rise/run

How many different axes of symmetry does this parallelogram have?
A. 0
B. 1
C. 2
D. 4

Answers

Answer:

B. 1

Step-by-step explanation:

Given parallelogram has only one axis of symmetry.

what is the answer?
x+y=15
-2x+5y=-2​

Answers

multiply the first equation by 2

2x + 2y =30

now we’ll add the second equation to the first equation

2x + 2y =30
-2x+5y= -2

7y=28

divide by 7

y=4

now plug y back into the first equation

x + 4 = 15

subtract 4

x=11

Your class earned $110.00 Saturday afternoon by washing cars to raise money for a class trip. This is 14 of the money needed for the trip. What is the total amount needed?


A~ $114 B~ $27.50


C~ $106 D~ $440

Answers

Answer

D. 440

Step-by-step explanation:

you had me confused so I had to go in my mathmetics book it was 1/4 not 14 thats what had me confused

-3/4-5/8=
This is a simple math problem
But it’s to hard for me
And I really need help
Not from someone who doesn’t know the answer

Answers

-11/8 because you turn the first one into -6/8 and then subtract to get -11/8

ASAP HELP ME

Find the area of the parallelogram

Answers

It’s 45, the answer is right on the screen

(3, 6) and (-2,5)


find the slope

Answers

Slope = 1/5 = 0.2.

You're welcome

1
Write the following equation in standard form:
y+4=
(x – 12)
3
PLEASE HELP MEE

Answers

Answer:

y-3x=-32

Step-by-step explanation:

y+4=3x-36

y-3x=-40

System of equations
2x+4y=8
X=3y-6

Answers

2x + 4y = 8
x = 3y - 6

2x + 4y = 8
2 * ( 3y - 6 ) + 4y = 8
6y + 12 + 4y = 8
8y = 8 - 12
8y = - 4
y = -4 / 8
y = -1 / 2

I need help plz
This is hard p.s this is 7th grade

Answers

it would be 2!
I hope this helps!!
2 jajahacqtuauahgacwfwuwijqvwgw

“I am a good student” is an example of a positive self-talk statement.
true or false
It doesn’t matter how much sleep you get before the night of a big test.
true or false

Answers

Answer:

true

Step-by-step explanation:

Answer:The first one is true and the second one is false

Step-by-step explanation:

Lin bought x grams of sugar. Jada bought 3⁄4 more than that. what is the equation that will represents the relationship between the amount of sugar that Lin bought, x, and the amount of sugar that Jada bought, y.

Answers

Answer:

y = 7/4x

Step-by-step explanation:

Lin bought x grams of sugar.

Jada bought 3⁄4 more than  Lin bought.

The equation:

y = x + 3/4x ⇒ y = 7/4x

Which of the following shows the length of the third side, in inches, of the triangle below? (1 point)

A right triangle is shown. One side of the triangle is labeled as 25 inches. The height of the triangle is labeled as 15 inches.
20 inches
Square root of 850 inches
Square root of 10 inches
40 inches

Answers

Answer:

20

Step-by-step explanation:

A computer salesman makes $10 per hour and 0.5% commission on what he sales. If he works for 40 hours this week, and he sales $4,500 of computers, how much will he make total?

Answers

Answer:

Total income earn = $422.5

Step-by-step explanation:

Given:

Earning per hour work = $10

Total hour = 40

Commission = 0.5% on sales

Total sales = $4,500

Find:

Total income earn

Computation:

Income from hour work = $10 x 40

Income from hour work = $400

Total commission = 0.5% x sales

Total commission = 0.5% x $4,500

Total commission = $22.5

Total income earn = $400 + $22.5

Total income earn = $422.5

What’s the value of k ?

Answers

Hello!

[tex]\large\boxed{k = 10^{o}}[/tex]

When given two interior angles and an exterior angle, the sum of the two interior angles is equal to the sum of the exterior angle. Therefore:

m∠YZX + m∠ZXY ≅ m∠MYZ

(4k + 5)° + (6k + 10)° = 115°

Combine like terms:

10k + 15 = 115°

Subtract 15 from both sides:

10k = 100°

Divide both sides by 10:

k = 10°

Answer:

k=10

Step-by-step explanation:

First you would find the missing angle at the top this would be 65 degrees, this means that the 2 other missing angles must total to 115 degrees.

Second you would set the equations equal to 115

4k+5+6k+10=115

Then you would combine the like terms

10k+15=115

next you would subtract the 15 from both sides

10k=100

then you divide by 10

k=10

Please help :( 20 points + Brainiest to the best answer :)

Answers

Answer/Step-by-step explanation:

Part A and B:

B to A   0.5 + -1.5 = -2 or I-2I Distance = 2

B to x    0.5 + 0 = 0.5 Distance = 0.5

x to A    0 + - 1.5 = -1.5 or I-1.5I Distance = 1.5

select all which are equivalent to:
5^1/3 x 25^1/3

Answers

Note:

You missed adding the answer options.

But, I am solving the given expression to determine its equivalent so that you could get an idea and could easily determine all the options which would be equivalent to the result we would get.

Answer:

[tex]5^{\frac{1}{3}}\:\times 25^{\frac{1}{3}}=5[/tex]

Step-by-step explanation:

Given the expression

[tex]5^{\frac{1}{3}}\times \:25^{\frac{1}{3}}[/tex]

[tex]\mathrm{Apply\:exponent\:rule}:\quad \:a^mb^m=\left(ab\right)^m[/tex]

[tex]5^{\frac{1}{3}}\times \:25^{\frac{1}{3}}=\left(5\times \:25\right)^{\frac{1}{3}}[/tex]

               [tex]=125^{\frac{1}{3}}[/tex]

[tex]\mathrm{Factor\:the\:number:\:}\:125=5^3[/tex]

               [tex]=\left(5^3\right)^{\frac{1}{3}}[/tex]

[tex]\mathrm{Apply\:exponent\:rule}:\quad \left(a^b\right)^c=a^{bc}[/tex]

               [tex]=\left(5^3\right)^{\frac{1}{3}}=5^{3\times \frac{1}{3}}=5[/tex]

Thus,

[tex]5^{\frac{1}{3}}\:\times 25^{\frac{1}{3}}=5[/tex]

A builder buys 26.5 acres of land to develop a new community of homes and parks. Part 1 out of 2 The builder plans to use 0.25 of the land for a park. How many acres will he use for the park?

Answers

Answer:

6.625 acres

Step-by-step explanation:

What we know:

A builder brought 26.5 acres of land to develop a community.

A fourth of that land will be used to make a park.

1/4 * 53/2

LCM of 4 and 2 is 4

1/4 * 106/4

106/16 = 53/8 = 6.625 or 6 5/8 acres will be used for a park

Answer:

6.625 acres

Step-by-step explanation:

26.5 * 0.25 = 6.625

Someone please help me I’m struggling rn

Answers

Answer:

HAVE A GOOD DAY !! YAYAYA

(I NEED THIS DONE ASAP PLEASE) Lena wants to plant a new lawn, but she knows that it’s not safe to run a mower on a hill with a slope ratio steeper than 1 to 3 (Δy = 1, Δx = 3). She has two hills in her yard. Hill A rises 4 feet and has a horizontal distance of 85 feet. Hill B rises 75 feet and has a horizontal distance of 200 feet. On which hill(s) can Lena safely plant her lawn? Justify your reasoning clearly

Answers

Answer:

Hill A

Step-by-step explanation:

Steepness of hill A:

4/85 < 1/3

Steepness of hill B:

75/200 = 3/8 > 1/3

The hill A is less sloped so it is safer to lawn plant

In which quadrant is point C located

Answers

Answer:

Quadrant 4

Step-by-step explanation:

On each of Maggie’s bird-watching trips, she has seen at least 36 birds. If she has taken 3 of these trips each year over the past 15 years, at least how many birds has Maggie seen?

Answers

Answer:

Maggie has seen at least 1620 birds.

Step-by-step explanation:

Ok since Maggie sees 36 birds each trip that means she sees 108 birds every year since she takes 3 trips each year. 36×3=108

If she has been doing this for 15 years she has seen at least 1620 birds because 108×15=1620

The difference of a number x and 3 is at most -2

Answers

Answer:

x is a number "the difference of" means subtract

therefore the "difference between 3 and a number " would be 3-x=-2

3-5= -2

Step-by-step explanation:

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