Mathematics High School

Please help!

Use the quadratic formula to solve 2x^2=5x+6. Leave your answer in radical form. Show all of your work!

Answers

Answer 1

Answer:

roots are [(5 - [tex]\sqrt{73}[/tex]) / 4] and [(5 + [tex]\sqrt{73}[/tex]) / 4]

Step-by-step explanation:

[-b ± √b² - (4ac)] ÷2a

2x² - 5x - 6 = 0

a = 2

b = -5

c = -6

[5 ± √5² - 4(2)(-6)] ÷ 2(2)

[5 ± √25 - (-48)] ÷ 4

[5 ± √73] ÷ 4

Related Questions

Someone help me out with this need a quick respond

Answers

to get the perimeter of a circle you need to use the formula 2xpix r
so 2x 3.1416 x 2= 12.56
so the third one counting from left to right

geometry question will give brainly!!

Answers

central angle measure

Question 14
The function sin) = 2n - 5 represents the value of the nth term in a sequence. What is the sum of the 1st and 6th terms of the sequence?

Answers

Answer:

4

Step-by-step explanation:

Using the nth term formula

a₁ = 2(1) - 5 = 2 - 5 = - 3

a₆ = 2(6) - 5 = 12 - 5 = 7

Then

a₁ + a₆ = - 3 + 7 = 4


Last year, an organization spent $500 on food for an event 100 people attende
This year, they plan for 120 people to attend the event. Food costs the same per
person as it did last year. From last year to this year, what is the percent change in
the money the organization spends on food? Show your work.

Answers

Hello!
Since 120 is bigger than 100, the money spent will increase. 120 / 100 = 1.20, so it’s a 20% increase in expenses as my final answer. Hope this helped ☺️

WORTH 30!!!
Find the value of tan theta, if cos theta= 4/5; 0< theta < 90​

Answers

Answer:

I'm almost positive that A and D are wrong but please don't kill me if I'm wrong

Step-by-step explanation:

A cab company charges $4 per cab ride, plus an additional $3 per mile driven. How long is a cab ride that costs $22?​

Answers

Answer:

6 miles

Step-by-step explanation:

Flat fee is $4

Per mile is $3

Equation :

4 + 3m = 22

subtract 4 from both sides

3m = 18

divide each side by 3

m = 6

The ride is 6 miles.

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Find the the measure of missing angle

Answers

The missing angle is 50. 40 + 90 = 130. 180 - 130 = 50.

Answer:

The missing angle is 50

Step-by-step explanation:

40 + 90 + x = 180

x = 180 - 90 - 40

x = 50

The missing angle is 50.

thenks and mark me brainliest :))

URGENT HELP!!!!!!!!!!!!!!!!!


Please don’t link any files!!

Answers

Answer:

C

Step-by-step explanation:

There are 5 Frogs that jumped between 50 to 100. We don't know if any jumped 60

Answer:

C is the answer by default

Transform the following equation into a 2 step equation using DCMAM:
5(3 + 9) − 2 = 15 − 2( − 5)

Answers

15+9- 2 =22-20 (-25)

dont want to go to summer school would be so thankful to anyone who could help me with this math problem

Answers

Looks like you going to summer school

John is watching a baseball game. So far, 6 out of 8 batters have gotten a hit. What is the
experimental probability that the next batter will get a hit?

Answers

Answer: 3/4 or 75% chance of him getting a hit

HELPPPPPPPP I HAVE 5 MINS LEFT

Answers

Answer:

c

Step-by-step explanation:

Would you rather be reincarnated as a sea creature or an airborne creature?

Answers

Answer:

Airborne

Step-by-step explanation:

Answer:

I would rather be incarnated as a suldreen, the proper name for a moonlark, which are a beautiful bird with silver or blue feathers arranged in a sweeping, peacock-like train, long legs like a crane, and a neck similar to a swan's.

Please solve ASAP please

Answers

Answer:

$40

Step-by-step explanation:

It's very simple, 0.1 * 150 = 15. Then add $25 by 15. 25 + 15 = 40.

En un estacionamiento cobran $12.00 la hora y $3.00 por 1/4 de hora ¿Cuánto debo pagar si estacione mi coche a las 11.15am y los saque a las 3.00pm
Ayuda plis doy coronita.

Answers

Answer:

$45

Step-by-step explanation:

De 11.00am a 3.00pm hay 4 horas de diferencia.

Eso seria 12x4=$48

Pero necesitamos restarle 1/4 de hora, por lo que se estaciono a las 11.15am y no a las 11.00am

1/4 de hora o 15min= $3.00

48-3=45

2 – 5 + 4 – 6 – 2 + 12
11
-5
5
1

Answers

Answer:

C. 5

Step-by-step explanation:

2 - 5 + 4 - 6 - 2 + 12

2 + 4 + 12 - 5 - 6 - 2

18 - 5 - 6 - 2

18 - 13

5

5 is your answer queen

A person invested $650 in an account growing at a rate allowing the money to double
every 13 years. How long, to the nearest tenth of a year would it take for the value of
the account to reach $1, 620?

Answers

Answer:

17.1

Step-by-step explanation:

because i did it lol

mr davis collected donations for charity. the amounts given by each donor is listed below. what is the range? 50, 52, 64, 32, 22, 80, 48, 30, 60​

Answers

Answer:

10

Step-by-step explanation:

10
Step to step answer

Please answer this math question for me

Answers

Answer:35 51 98

Step-by-step explanation:

Answer:

Hello! Thanks for posting the question again!

Anyways here are the answers...

d = 35 because its a vertical angle

e = 51 because its a vertical angle

Now to find f we have to add these up then subtract by 360 then ÷ by 2 so 51 + 51 + 35 + 35 = 172 360 - 172 = 188 188 ÷ 2 = 94 so f = 94


Four times the sum of a number and 18 is at least -22

Answers

Answer:

x=7

Step-by-step explanation:

3x+4=18+x

2x=14

Set number equal to "x".

Find the volume of a 1 km3 body of water in m3, and select the correct units.

Answers

Answer:

1,000,000,000 [tex]m^3[/tex]

Step-by-step explanation:

1 kilometer is equal to 1000 meters, and 1 [tex]km^3[/tex] is 1 km * 1 km * 1 km

Therefore,

1000m * 1000m * 1000m = 1,000,000,000 [tex]m^3[/tex]

Hope this answer helped! :)

please show your work.[tex]Simplify: −2x + (9x − 4)[/tex]

Answers

Answer:

7x - 4

Step-by-step explanation:

-2x + (9x - 4)

-2x + 9x -4

9x - 2x = 7x

7x - 4

Brainliest

Which expression is equivalent to 3x - (2x + 4) + 5?
x+1
x + 9
5x + 9
5x + 1

Answers

Answer:

x + 1

Step-by-step explanation:

3x - (2x + 4) + 5

3x - 2x - 4 + 5

x - 4 + 5

x + 1

Regina owns a book store. She sold 87, 94, 91, and 84 books on the first 4 days of this week. Regina wants to have a mean of 90 books sold after 5 days NEED IT FAST

Answers

Answer:

If Regina wants a mean of 90, she needs to sell 94 books on the 5th day.

Can someone help brainllest and 20 points

Answers

Answer:

10a+5

Step-by-step explanation:

10(a+.05)

Distribute the 10

(10*a)+(10*.5)

Multiply

10a+5

You have a job interview that is 330 miles away. If your average driving speed is 55 miles per hour, how long will it take you to get there? Show your work. Check your answer.

Answers

Answer: 6 hours

Explanation: You divide 330 miles by 55 mph.

Please help me with this homework show me how you get it and the answer

Answers

Answer:

25.12 in³

Step-by-step explanation:

v = (1/3)πr²h

Plug in the givens

v = (1/3)(3.14)(4/2)²(6)

v = (1/3)(3.14)(4)(6)

v = 25.12

Answer:

the volume is 25.12. that's the correct answer

C=-7/15 and x=2/5 c-4x write your answer in simplest form

Answers

9514 1404 393

Answer:

  -31/15

Step-by-step explanation:

Put the numbers in the expression and do the arithmetic.

  [tex]c-4x=-\dfrac{7}{15}-4\cdot\dfrac{2}{5}=-\left(\dfrac{7}{15}+\dfrac{8}{5}\right)\\\\=-\left(\dfrac{7}{15}+\dfrac{24}{15}\right)=\boxed{-\dfrac{31}{15}}[/tex]

__

Your graphing calculator can probably help with this.

A spinner with three sectors labeled A,B, and C is spun, and a coin is flipped. Let H stand for heads and T for tails. What is the sample space for the experiment?

Answers

Answer:

the answer is 1/8

Step-by-step explanation:

8(39 + 11)
a (8 +39) * (8 + 11) = 893
b. (8 x 39) * (8 x 11) = 27456
C. (8 +39) + (8 + 11) = 66
d. (8 x 39) + (8 x 11) = 400

Answers

Answer:

option D is the correct answer

D is the correct answer
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