Which describes independent events?A) Selecting two tickets by choosing a raffle ticket at random from a jar and disposing of the first ticket before selecting the second ticket.

B) Selecting a blue and green balloon by choosing one string at a time at random from a clown's hand, handing the first choice to your brother.

C) Rolling two ones in a row using a standard die.

D) Getting 5 multiple choice questions correct if you select at random from each of the possible answers, never repeating an answer choice.

Answers

Answer 1

Answer: C.

All of the other answers are dependent because once the first action is complete, the sample from which you are selecting the second item is different from the first...

for example, A,

If you draw the first ticket out of, say, 25 total tickets, there is a 1/25 chance you will get that ticket. If you dispose of it and then draw a second ticket, there are now 24 total tickets so there is a 1/24 chance of getting that ticket.

C is independent because the dice itself doesn't change when you roll it again... there is a 1/6 chance of getting a one each separate time you roll.

hope that helped!

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1.(1 pt)Which pair is a base and corresponding height for the triangle?A.b = 16 units and h = 9.6 unitsB.b = 20 units and h = 16 unitsC.b = 20 units and h = 9.6 unitsD.b = 20 units and h = 12 units2.(1 pt)What is the area of the triangle?A.208 in2B.192 in2C.104 in2D.96 in23.(1 pt)What is the area of the triangle? A.42.14 cm²B.35.28 cm²C.21.07 cm²D.17.64 cm²4.(1 pt)The county animal park is shaped like a triangle. Two perpendicular sides of the park measure 2.3 miles and 3.4 miles. What is the area of the animal park?A.3.91 mi²B.5.7 mi²C.7.82 mi²D.11.4 mi²5.(1 pt)What is the area of a triangle with a base of 4.6 cm and a height of 7.8 cm?A.12.4 cm²B.17.94 cm²C.24.8 cm²D.35.88 cm²
I need help to solve this
What is the sum of 5/30+4/6

What is a ratio for 75/100???

Answers

75:100 I'm guessing.

75/100=3/4

Therefore, the ratio is 3:4

HOPE THIS HELPS!!!!!!!!!!

In a chess match, a win counts as 1 point, a draw counts as 0.5 point, and a loss counts as 0 points. After 21 games between the two players, the winner was 8 points ahead of the loser. How many points did the winner have?PLS HELP

Answers

Answer:

14.5

Step-by-step explanation:

First, let's confirm that total points = total number of games played.

Suppose, if any one of the player wins all the games, then,

total points = 21(1) + 0 = 21 = total number of games

Suppose, all the games end in draw. Then,

21(0.5) + 21(0.5) = 21(0.5 + 0.5) = 21(1) = 21 = total number of games

Suppose, if one player wins in 10 games and the remaining 11 games end in draw, then,

10(1) + 11(0.5 + 0.5) = 10 + 11 = 21 = total number of games

So, in all cases, total points = total number of games played

Now, let x be the points that the loser has.

So, the winner's points should be x + 8.

Total number of games played = 21

Since, total points = total number of games played,

x + (x + 8) = 21

2x + 8 = 21

2x = 21 - 8 = 13

x = 6.5

Winner's points = x + 8 = 6.5 + 8 = 14.5.

Determine whether the polynomial is a difference of squares and if it is, factor it.y2 − 25
A. Is not a difference of squares
B. Is a difference of squares: (y − 5)2
C. Is a difference of squares: (y + 5)(y − 5)
D. Is a difference of squares: (y + 5)2

Answers

Answer:

Option: C is the correct answer.

C. Is a difference of squares: (y + 5)(y − 5).

Step-by-step explanation:

We are given a polynomial expression in terms of the variable y as follows:

$y^2-25$

Now this expression could also be written as:

$y^2-25=y^2-5^2$

This means that the expression is a difference of squares.

Also, we know that:

$a^2-b^2=(a+b)(a-b)$

Here,

$a=y\ and\ b=5$

Hence,

$y^2-25=(y+5)(y-5)$

the answer is C
y² - 25
= y² - 5²
= (y + 5)(y - 5) which is a difference of two squares

Greatest common factor of 24 and 38

Answers

Answer:

Step-by-step explanation:

Since the only way you can get 38 by multipling 2 times 19 or 1 times 38 the GCF wil have to be 2 this works with 24 as weel (2 times 12) Hope this helps :)

it is two because you cant divide thirty eight by anything but two hope this helps and have a great day

First person to answer this question get 11 points! What are all the possible ways to classify the following shape ?

A. polygon, quadrilateral, parallelogram,
B. quadrilateral, parallelogram, rectangle
C.polygon, quadrilateral, parallellogram

Answers

polygon means many sided

quadrilateral means 4 sides
parellelogram means 2 pairs of parrelel sides
rectangle=parellelogram with 4 right angles

so thea snwer is A,B,C or all of them

if you need to pick one only, I would pick B because it has the name RECTANGLE specifically stated so the answer is ABC or if you must pick one then the naswer is B

20.8KGs equals 20L, what is 10.5 kgs in litres

Answers

y = k x

20.8 kg = 20L
10.5 kg = ?L

Independent variable (y) : 20.8 kg
Dependent variable (x) : 20L

Find k, or a number that will be multiplied to the dependent variable to produce the independent variable.

20.8 kg = k (20L)
20.8 kg ÷ 20L = k
k = 1.04

Use k to find the dependent variable in the second set of items.

10.5 kg = (1.04) x
10.5 kg ÷ 1.04 = x

The answer would be:
10.1L

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Ms. Peterson wrote the expression below on the chalkboard for her class. She asked the students to write an equivalent expression using no more than oneset of parentheses. 4(3x+5y+2z)+ 3(x-z)• Tom wrote 12x+20y+8z • Jenna wrote 5 (3x+4y+z)• Chris wrote 15x+20y-5zWhich, if any, of the three students wrote an expression that is equivalent to Ms. Peterson’s expression?