a classroom is arranged with 10 seats in the front row 12 seats in the middle row and 18 seats in the back row the teacher randomly assigned seats to students as they enter the classroom what is the probability of the first student who enter the classroom will be assigned a seat in the middle row?​

Answers

Answer 1

Answer:

3/10

Step-by-step explanation:

12/40 = 3/10


Related Questions

HELP ASAP
Select the correct answer.
What is the complete factorization of 36y2 - 1?

Answers

Answer:

(6−1)(6+1)

Step-by-step explanation:

9514 1404 393

Answer:

  B.  (6y +1)(6y -1)

Step-by-step explanation:

The factorization of the difference of squares is ...

  a² -b² = (a +b)(a -b)

Your expression is the difference of the squares ...

  (6y)² -1²

so the factorization is ...

  36y² - 1 = (6y +1)(6y -1) . . . . . matches choice B

PLEASE HELP I NEED HELP ASAP PLEASE
Use the information given to write the equation for the quadratic function.
a. The x-intercepts are (-4, 0) and (3,0), and the parabola opens down.
b. The vertex is (-8, -2), and the parabola opens up.

Answers

Answer:

y = -x² - x/22 + 6/11

Step-by-step explanation:

Standard form, is y = ax² + bx + c

We need to use standard form (though we could use vertex form, but it is easier to do standard form)

Substitute the x and y values that they give into y = ax² + bx + c

Because the parabola passes through...

(-4, 0), then 0 = (-4)²a + (-4)b + c

(3, 0), then 0 = 9a + 3b + c

(-8, -2), then -2 = 64a - 8b + c

So, we get this system:

16a − 4b + c = 0

9a + 3b + c = 0

64a − 8b + c = −2

Because you are learning about parabolas, I am assuming that you can solve a system, but the answers are:

a = -x²/22

b = -x/22

c = 6/11

So, the equation of the parabola is:

y = -x²/22 - x/22 + 6/11

I hope this helps! Feel free to ask any questions!

WILL GIVE BRAINLIEST!
Find two consecutive even integers such that four times the first equals three times the second. (Enter your answers as a comma-separated list.)

Answers

Answer:

This is complicated

Step-by-step explanation:

UHM

Without using a calculator, choose the statement that best describes the value of \sqrt{105}
105

square root of, 105, end square root.
Choose 1 answer:

Answers

Answer:

The square root of 105 is about 10.

Step-by-step explanation:

You can find the nearest perfect root, 100, and you will have 10. Because the answer is a little more than 10, you can presume that the answer to this equation is a little more than 10.

PLEASE HELP

What statement best describes the relation ship in the graph below


A. The relationship is a function because of all the y -values are positive

B. The relationship is not a function because the graph does not pass through the point (0,0)

C. The relationship is a function because each x -value has exactly one corresponding y -value

Answers

The answer is b hope it helps

Tiffany has a balance of -89.44 in her checking account. She deposits $95.00. what is her new balance ​

Answers

Answer:

5.56

Step-by-step explanation:

Tiffany has $5.56 in her account

Nicholas drinks 8 ounces of milk for every 5 cookies he eats. If he eats 20
cook, how many ounces of milk does he drink?

Answers

Answer:

I believe its 32oz because if hes dri king 8oz every 5 cookies and he ate 20 cookies he ate 4 times the first 5 cookies so you would multiply 8x4=32oz of milk

Answer:

32oz

Step-by-step explanation:

24 times *blank* =6

Someone please answer this I need help

Answers

Answer:

0.25

Step-by-step explanation:

0.25 x 24 = 6

The price of a computer after discount was $850. If the discount was 25%, what was the original price of the computer?

Answers

Answer:

21.25

Step-by-step explanation:

I just smart

ggzfbkbhbjkfbjklgcvbvbnxvcbnvcvbc will give brainliest

Answers

Answer:

I had fun doing it. Just calculate the volume of each shape and follow the path Volume of pyramid = (Area of base x height)/3

Okabsnshjajjaanajajjajmakajs I don’t know sorry

Como se puede influir de manera tractiva en otros niños menores de 14 años para tomar medidas bioseguridad en tiempos de pandemia

Answers

Step-by-step explanation:

La medida más importante es la difusión de información. Es necesario tener información sobre las prácticas de bioseguridad en tiempos de pandemia accesible a los jóvenes, ya sea en la escuela, en internet, en las redes sociales, a través de anuncios televisivos de celebridades con los que los jóvenes se identifican.

Es necesario que la pandemia sea vista como un problema de salud muy grave y que debe ser tomado en serio por todas las personas independientemente de su edad, los jóvenes deben comprender la gravedad del problema que enfrenta el mundo y adaptarse a este período que el Cuanto mayor sea la conservación, más rápido terminará.

5.
Write an equation of a line with the given slope and y-intercept.
m = (1)/(4), b = -(3)/(4)

A. y= 4x - (3)/(4)

B. y= (1)/(4)x - (3)/(4)

C. y= (1)/(4)x + (3)/(4)

D. y= -(3)/(4)x + (1)/(4)

Answers

Answer:

B. y= (1/4)x-3/4

The equation of a straight line it is found by using

Y= mx + c

Where m is the gradient

and c is the y intercept

Answer:

C. y= (1)/(4)x + (3)/(4)

Step-by-step explanation:

Equation of a line is y=mx+b  

where m is the slope and b is the y-intercept.

y= (1)x + (4)

so

the equation of this line would be,

y = x + 4

y=x+4

Calculate the slope of the line that passes through (2,5) and (12, 10). Reduce answer to lowest terms if necessary.

Answers

Answer:

1/2

Step-by-step explanation:

Slope equation:

y2 - y1

--------

x2 - x1

-----------------------------------------------------------------------------------------------------------------

10 - 5         5.        1

--------  =    ---- =  ------

12 - 2         10       2

Hope this helps!

Answer:1/2 Step-by-step explanation:

I will mark you BRAINLIEST for the correct answer

Answers

Answer:

8:56 which simplified would be 1:7

Step-by-step explanation:

Val rented a bicycle while she was on vacation. She paid a flat rental fee of $55.00, plus $8.50
each day. The total cost was $123. Write an equation you can use to find the number of days she
rented the bicycle.

Answers

55 + 8.50d = 123

55 for rental
8.50d for each day she pays 8.50 so add the d and then equal sign and 123.

Answer:

$55 + $8.50 (x) = $123

:))

If x=6 and y=−4, evaluate the following expression:10−4xy​

Answers

Answer:

106

Step-by-step explanation:

Substitute x = 6, y = - 4 into the expression

10 - 4xy

= 10 - 4 × 6 × - 4

= 10 - 24 × - 4

= 10 - (- 96)

= 10 + 96

= 106

Help needed thanx!!!!

Answers

Answer:

all quadrilaterals have 4 sides

Pls mark as brainliest

Answer:

C

Step-by-step explanation:

Because all quadrilaterals have four sides. Like for example a square and a parallelogram both have 4 sides.

find the value of c(5)
c(n)=10+2n​

Answers

Answer:

c = 10/n + 2

Step-by-step explanation:

please help how do solve this

Answers

What is the question??

Help me please please






Answers

When dividing same numbers with different exponents (they’re both 10 so this works different than if they were different numbers) you subtract the top exponent by the bottom exponent. So 15-4=11 ultimately making the solution 10^11. Hope this helps :)

What is the hypotenuse?

Answers

Answer:

Step-by-step explanation:

DF, which is also the longest side.


Given f(x) = 7|x + 4] - 3. Name the slope and vertex.

Answers

Answer:

The slope-intercept form y = mx + b allows us to write equations if the ... 3 4. 4 6. 5 8. Which function corresponds with the table? A) f(x) = x + 2. B) ... 0 -7. 1 -4. 2 -1. 3 2. 4 5. Which equation corresponds to the function described in the table? ... 23) A parabola with vertex (h, k)

Step-by-step explanation:

what percent is 50% of 50% of x

Answers

Answer:

um the best i can say is 25% if thats the only info you give

Step-by-step explanation:

Answer:

It's 25%                                                            

Step-by-step explanation:

Solve y =-2x
y = 3x + 5
by using substitution method

Answers

Answer:

y = -2x

y = 3x + 5

<=> 3x + 5 = -2x

y = -2x

<=> 5x = -5

y = -2x

<=> x = -1

y = -2x

<=> x = -1

y = (-2)(-1) = 2

so (x; y) = (-1; 2)

I need help on 3-4 and body know? And I need an explanation.

Answers

Answer:

a 90

b 90

a 8x+40

b 4y-36

c -6n-3

d 7x+7

e -10x+30

f 4/1x+2/1

Alright, this is a lot.

This start with the first question (3)

Find the product of 5(18) and 5(18) = 90

To get that is 5(18) = (5 x 18 = 90)

So now we have to do the math for both A and B and find out which one is 90

A 5(10+8) : 10 + 8 = 18 so (a) = 5(18)
B 5(20-2) : 20 - 2 = 18 also well

I think (a) would be your best bet. For question (3)

Alright question 4

(a) = 8x + 40
(b) = 4y - 36
(c) = -6n - 18
(d) = 7x + 7
(e) = 30-10x
(f) = 4x + 2

Hope this helps in any way. Tell me if It's right

Emily is training for a 10K race. On day one, she runs for 20 minutes. On day two, she runs for 30 minutes. On day three, she runs for 40 minutes. If this pattern continues, how many minutes will she run on day 12?

Answers

It should be 130 as from day one to day two and to day three it goes up by 10 so 12*10+10

PLEASE HELP WILL MARK BRAINLIEST!
Steve uses an app that shows him how many Kilometers he has run to prepare for a marathon. The app store said he ran 6.436 Kilometers. He wants to post online how many miles he ran. Steve ran_______miles.

Answers

Your answer would be 3 miles! I hope this helps, have a great day!

HEY, I NEED HELP. QUICK. IM GETTING GROUNDED IF I DONT GET THIS DONE,,,, CHECKING IN ON YOU, HOW ARE YOU? HAVE YOU DRANK WATER? REMEMBER, YOU ARE PERFECT. WHAT OTHERS SAY SHOULDNT MATTER. I KNOW WHAT PEOPLE SAY ABOUT YOU WILL HURT. BUT, THEIR OPINION IS TERRIBLE. YOU ARE VALID AND BEAUTIFUL. I LOVE YOU. HAVE A GOOD DAY. ❤️

Answers

Answer:

0, -2 i think :p

Step-by-step explanation:

Because i say so

Answer:

(2,-3)

Step-by-step explanation:

Aside from the solution below, you can also do this without needing a coordinate plane.

When you need to move right, you know that you will be only dealing with the x-axis, so the -3 will stay the same, untouched, (x, -3)

From now on, simply add +7 to -5 and you get (2,-3)

PLEASE HELP ME!!!

This is a survey of 200 people.
Bird:32
Cat:56
Dog:66
Rabbit:19
Other: 27

What is the probability that a person says that their first pet was a cat?


Out of 500 people, how many would you expect to say a cat was their first pet?

What is the probability that a person says that their first pet was a bird?

WHOEVER ANSWERS ALL CORRECT GETS BRAINLIEST!!!

Answers

Answer:

probability first pet was a cat:  56/200 or 28%

out of 500, 240 would say a cat was first pet (28% of 500)

probability first pet was a bird:  32/200 or 16%

Step-by-step explanation:

10 points worth please help!

Answers

You need 20 teaspoons of red paint
I’ve attached my work...
Hope it helps!
Your answer is 20
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