Mathematics College

There are 22 students in your class. Your teacher is going to choose 2 students at random for a prize. What is the probability that it will be you and your best friend that is in the class?
A. 36
B. 70
C. 1/462
D. 6(4X+3Y-2)
E. 18.75
F. 23.36
G. 2.54
H. 36.3
I. 6(4X-3Y+2)

Answers

Answer 1

Answer:

C)  1 / 462

Step-by-step explanation:

22 x 21 = 462

Related Questions

guys i need help on this problem I'm stuck

Answers

Answer:

y=mx+b is slope intercept form

Step-by-step explanation:

letter B :)

The answer is y = mx + b
m is the slope and b is the y-intercept


The second one Thank you

Answers

11 days for the second question

Can someone help me please

Answers

Answer:

"I can find the maximum or minimum by looking at the factored expression of a quadratic function by reading off its roots and taking the arithmetic average of them to obtain the [tex]x[/tex]-coordinate of the quadratic function, and then substituting that value into the function."

Step-by-step explanation:

Because of the symmetry of quadratics (which is the case here because we have two factors of degree 1, so we are dealing with a polynomial of degree 2, which is a fancy way of saying that something is a quadratic), the [tex]x[/tex]-coordinate of the extremum (a fancy way of saying maximum or minimum) is the (arithmetic) average of the two roots.

In the factored form of a quadratic function, we can immediately read the roots: 3 and 7. Another way to see that is to solve [tex](x-3)(x-7)=0[/tex], which gives [tex]x-3=0 \vee x-7=0[/tex] (the 'V' stands for 'or'). We can take the average of the two roots to get the [tex]x[/tex]-coordinate of the minimum point of the graph (which, in this case, is [tex]x=\frac{3+7}{2} = \frac{10}{2} = 5[/tex]).

Having the [tex]x[/tex]-coordinate of the extremum, we can substitute this value into the function to obtain the maximum or minimum point of the graph, because that will give the [tex]y[/tex]-coordinate of the extremum.

What is the multiplier for a decrease of 38%?

Answers

Answer:

Step-by-step explanation:

times .62

Whole page for 81! Good luck!

Answers

Answer:

Prime number: A prime number has factor of only 1 and itself.

Ex: 3: 1 and 3 are the only ways to compose 3.

A whole number that has factors other than 1 and itself is called a composite number.

Ex: 8: the factors of 8 include 1,2,4,8

Circle 5,7,2,19,3,11

Box 18,20,22,16,15,30,26,38,45,10,21,6,14

To determine the prime factorization of a number, you must break down a number into its factors. (im not sure?)

Continute until all of the factors are (im not sure)

Prime factorization is written exponential form (im not quite sure)

30= 2x3x5

30= 2^1 3^1 5^1

24=2 × 2 × 2 × 3

24= 2^3 x 3

sorry idrk if they are all right

A hotel has two different ice machines that fill buckets of ice independently of each other. Let A represent the amount of ice in a bucket filled by machine A, and let B represent the amount of ice in a bucket filled by machine B. Which of the following choices explains the meaning of independent random variables in context?

Answers

C.) The independence of the two ice machines means that knowing how much one machine fills does not help us predict how much the other fills.

there are 38 students involved in planning the homecoming parade of these students 15 are boys and 23 are girls if two members are selected to lead the parade what is the probability that both are girls

​

Answers

Answer:

about 65%

I already answered this

You take a 325 milligram dosage of ibuprofen. During each subsequent hour, the amount of medication in
your bloodstream decreases by about 29% each hour

Answers

Answer:

oka so now what

Step-by-step explanation:

A movie theater charges $12.00 for adults and $4.50 for children under the age of ten. A group of adults and children went to the movies and spent $75.00 on 10 tickets. How many adults and how many children went to the move?

Answers

Answer:

4 Adults and 6 Children went to the movies.

Step-by-step explanation:

(Children) $4.50 x 6 = $27.00

(Adults) $12.00 x 4 = $48.00

$48.00 + $27.00 = $75.00

which is more, 6 miles or 31,678 feet ?

Answers

6 miles as 31678 feet is 5 miles

Answer: 6miles

Step-by-step explanation: 6miles = 31680ft so 31680>31678

13. How much money will 8820 Vield in investa
+ 5%. for 3 years and compounded
continuosly and semiannually and determine
which eams more?

Answers

9514 1404 393

Answer:

10,247.38 from continuous compounding10,228.50 from semiannual compoundingcontinuous compounding earns more

Step-by-step explanation:

The formula for the account balance from continuously compounded interest at annual rate r for t years is ...

  A = Pe^(rt) . . . . P = principal invested

  A = 8820e^(0.05·3) ≈ 10,247.38 . . . continuous compounding

__

The formula for the account balance from interest compounded semiannually at annual rate r for t years is ...

  A = P(1 +r/2)^(2t)

  A = 8820(1 +.05/2)^(2·3) ≈ 10,228.50 . . . semiannual compounding

Continuous compounding earns more.

ackson is given the expression below to simplify. Which expression is equivalent to Jackson’s expression?9x−4+4x+5x+19

Answers

Ahttps://edpuzzle.com/assignments/600b1eec3f257f4235835f31/watchvhttps://edpuzzle.com/assignments/600b1eec3f257f42358idskdkeidjiwfjefwbfdbfkiwdhf

by-step explanation:

Answer:

3(6x+5)

Step-by-step explanation:

So first I opened my device

Then, I went to brainly

Next, I asked the question

Finally, i came back here to put the answer i found

                          *Perfect explanation*

what is the me big of fraction​

Answers

Answer:

me big of fraction? what is that? :(

Step-by-step explanation:

Help Ratios Picture added!!

Answers

Answer:
25

Explanation:
A : B
4 : 5
20 : 25
Multiply the sides by 5

plz help my friend plz and thank you

Answers

The answer is prob c

Answer:

8.7 ≈ 9

Step-by-step explanation:

2πr = 55, so r = 55/(2*3.14) ≈ 8.7579...

it takes 120 drops of water to fill a teaspoon write the prime fractorization
of 120 using exponents ​

Answers

Answer:

120 = 2³×3×5

Step-by-step explanation:

Answer these questions please:

What step did the error come in?

What did they do wrong ?

Answers

Answer:

Step 1,                 4=3(d+1)-5   should be 4=3d+3-5

Step-by-step explanation:

I need help with this if you get it right I will mark you

Answers

interior angle sum of a triangle is 180, so 180=38+26+2n
180=64+2n
116=2n
58=n
the answer is c

Which product is less than 5/8

Answers

Answer:

7/10 * 5/8 is less than 5/8 because 7/10 * 5/8= 0.4375. And 5/8=0.625

Step-by-step explanation:

Answer:

4/8

I don't really have an explanation-

I need to write fractions as mixed numbers 36/6 20/10 15/8 13/6​

Answers

36/6 = 6

20/10 = 2

15/8 = 1 7/8

13/6 = 2 1/6

Hope this helped!

Answer:

6, 2, 8 7/8, 2 1/3

Step-by-step explanation:

36/6 represents a division: 36 divided by 6

answer: 6

20/10 also division: 20 divided by 10

answer: 2

15/8 also division (long division...) 15 divided by 8

you will have a remainder (that will become your numerator)

the decimal of that division is 1.875 as a fraction that is a mixed number:

8 AND 875/1000  but!! you are not done yet (that fraction has to be simplified)

If you divide the fractional portion by the greatest common factor (125) you can simplify your fraction to 8 7/8

13/6 is 13 divided by 6 = 2 with a remainder of 2 = 2 2/6 simplified = 2 1/3

Which step should be performed first when simplifying 25−(14−8)+3×2 ?

Answers

Step-by-step explanation:

the operation of addition first, then multiplication; whereas student 2 ... When performing arithmetic operations there can be only one correct answer

Answer what you can. You don’t have to show your work but please do.

Answers

Answer:

I'll help with the first 2

(  12/4x7-18=

12/4=3

3x4=12

12-18= -6  )

(  8[tex]{2}[/tex] - 22/2x7=

8x2=16

22/2=11

11x7=77

16-77= -61  )

Step-by-step explanation:

PEMDAS

P-(  ) Parenthesis

E- Ex[tex]x^{2}[/tex]  (Exsample-2[tex]{2}[/tex] = 2x2=4 )

M=Multiplication X

D-Division

A-Add +

S-Subtraction

Plz help what the answers :')

Answers

Answer:

X=87.5 and the equation is 0.40/x=35

Step-by-step explanation:

what is the lowest common multiple of 3 , 4 and 2

Answers

12 is the answer
Explanation:

In A QRS, ZRTQ - STR.
R
S
Which relationship proves that ZQRS is a right angle?

Answers

Answer:

A

Step-by-step explanation:

hhjjjjkkkdaa vhjkkjddgj hjkjcgh

2. Three fourth of the students and an additional 18 students at the school purchased a spirit shirt during the last fundraiser. If 336 shirts were ordered, how many students are there in the school?​

Answers

Step-by-step explanation:

The correct answer is 237

Answer:257

Step-by-step explanation:

Josh bought 2 pairs of $15 jeans. He also bought three shirts that were $10 each minus a $1 clearance
discount on each shirt. Finally he made a stop to get cookies for his party. The cookies cost $3 per dozen and
he needed 6 dozen. Which expression represents Josh's purchases? What was Josh's total money spent?

Answers

Answer:

Answer: $75 Equation: (15×2)+3(10-1)+(3×6)=75

Step-by-step explanation:

PLSSS HELP ASAP I BEG WILL MARK BRAINLIEST

Answers

Answer:

The awsner is C

Step-by-step explanation:

C is the awnser

Ratio 7/11 two other ways

Answers

Answer:

Isn't it 7:11 and 7 to 11

Step-by-step explanation:

comparing their candy haul. If Sullivan got s number of pieces and Carter got 2s,
what does that tell you about the relationship between the amount of candy they
each had?

Answers

Answer:

.....

Step-by-step explanation:

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