The probability of a fair coin landing heads-up in one toss is 1/2.If a coin is
tossed 20 times, how many times would the coin be expected to land heads-
up?
20
1
10
2

The Probability Of A Fair Coin Landing Heads-up In One Toss Is 1/2.If A Coin Istossed 20 Times, How Many

Answers

Answer 1

Answer:

10/20 because then it's still a 50 50 chance so the answer it 10

Answer 2
The answer is 10 as there is 50%-50% chance of both; probability of getting heads or tails is 1/2

Related Questions

Kayla has a weekly budget of $640. She works at a clothing store and makes $220 per week, plus 20% commission on the merchandise she sells to her customers.


Which of the following is the correct interpretation of the solution?

A. Kayla can sell $2,100 or less to reach her weekly budget
B. Kayla needs to sell $2,100 or more to reach her weekly budget
C. Kayla needs to sell more than $2,100 to reach her weekly budget
D. Kayla can sell less than $2,100 to reach her weekly budget

Answers

Answer:

i think it would be C, im not sure though

Step-by-step explanation:

Please help me. Can you help me do A,B,C,D,E, and F please

Answers

Answer:

KGHKWGJRWGJHWG

Step-by-step explanation:

A window manufacturer claims that the seals break on only 4% of its windows. What is the probability that, in a sample of 10 windows, no seals will break?

Answers

Answer:

0.96

Step-by-step explanation:

Total samples of window = 10smaples

Total seal break = 4% of 10

Total seal break = 0.04 * 10

Total seal break = 0.4

THis means that no seal will be break on 96% of the window i.e 9.6 windows

The probability that, in a sample of 10 windows, no seals will break is expressed

as;

Pr(no seal will break) = 9.6/10

Pr(no seal will break)  = 0.96

Hence the probability that no seals will break is 0.96

help!! -4x=36 and pls show the work! thank youu

Answers

Answer:

x=-9

Step-by-step explanation:

x=36/-4=-9

Answer:

-9

Step-by-step explanation:

-4x=36

36/-4=-9

x = -9

-4(-9)=36

If 900 people were​ surveyed, how many gave this​ answer?

Answers

Answer:

well not all would do it would be approx 856 people but I dont really know what u mean

i would assume 900, but you did not say what answer they gave, so i'm kinda confused by your question.

Which statement best describes the relationship between the lengths of the sides of the triangle shown below?

A. r squared is equal to t squared minus s squared.
B. The square root of t is equal to r plus s.
C. s squared equals t squared plus r.
D. s plus t is equal to r squared.

Answers

Answer:

the answer is c

Step-by-step explanation:

The relationship between the lengths of the sides of the triangle is as follows: r² =  t² - s².

What is the right triangle?

A right triangle is defined as a triangle in which one angle is a right angle or two sides are perpendicular.

The right triangle is given in the question, as shown

As per the given figure, the right triangle has

The hypotenuse = t

Let, perpendicular = r and base = s

According to Pythagoras's theorem,

In a right-angled triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

So, perpendicular²+base²=hypotenuse²

⇒ r² + s² =  t²

This can be rewritten as

⇒ r² =  t² - s²

Hence, the correct answer would be an option (A).

Learn more about the right triangle here:

brainly.com/question/6322314

#SPJ2

Which of the values in the set {1, 2, 3, 4} is a solution to the equation 3x + 3 = 15? (4 points) a 1 b 2 c 3 d 4

Answers

Answer:

3

Step-by-step explanation:

Answer: The answer is 4

Step-by-step explanation:
the x is equal to an exponent. Since 3x4 equals 12, and 12+3 equals 15

Which set of ordered pairs represents y as a function of ?
A {(2,5), (3, 1), (2, 1), (4,7)
B {(3, 2), (4,3), (5,2), (2,6)}
C {(1, 3), (3,5), (2,5), (1,6)}
D {(4,7), (4, 6), (4,4). (4,1)}

Answers

B......................

May someone help me with this :) it’s easy

Answers

Answer:

b) 35/100

c) 0.35

Step-by-step explanation:

2)

[][][][][][][]

Answer:

3. [tex]\frac{20}{100}[/tex] and [tex]\frac{1}{5}[/tex]

Step-by-step explanation:

Someone already answered b, c, and 2 so here's the third answer :)

10:50 is a ratio, which can be rewritten as [tex]\frac{10}{50}[/tex]

To write an equivalent fraction, we can either multiply or divide.

Multiplying both the numerator and denominator by 2 gets us [tex]\frac{20}{100}[/tex].

Dividing both the numerator and denominator by 10 gets us [tex]\frac{1}{5}[/tex].

Hope this helps!

There are 8 teams playing in the tournament. Each team is scheduled to play every other team once. How many games will be played during the tournament?


A. 15

B. 21

C. 28

D. 36

Plz help me! who ansers this good I will giv 50 points!!!! I will vote you brainlest

Answers

The answer is 36 because all 8 teams play 4 games each.

Answer:

36 i did the quiz!

earth takes 6 seconds to travel 114 miles around the sun. How fast does the earth travel around the sun in miles per second

Answers

Answer: 19

Step-by-Step explanation:

So I am assuming that you should divide 114 divided by 6 which will leave you with the answer of 19.

Sarah is planning for a children's party. She wants to provide each child with a party bag containing 3 items, a whistle, a ball and a tube of sweets. Whistles are sold in packs of 5, balls in packs of 3 and sweets in packs of 6, she doesn't want any single items left over, even if it means she has too many party bags. What are the minimum party bags she can make and how many packs of each item does she need to buy?

Answers

w, b, s are the packs of whistles, balls, sweets, respectively.

I NEED HELP AGAIN PLEASE HELP MEEEE

Answers

Answer:

The answer for this proportion is 6/10 ft

HELP ME FIND THE GCF

What is the greatest common factor (GCF) of the numerator and denominator
of the rational expression below?
5x - 20/ x^2-2x-8

Answers

Answer: Look below =3

The greatest common factor of numerator and denominator is (x-4).

PLEASE HELP ANSWER ASAP I WILL GIVE BRAINLIEST

Mr. Peery has saved $150 to buy an iPhone 12. With his cell phone plan he can buy a new iPhone 12 for $200. If he can only save $10 a week how many weeks will it take for him to get enough money to buy the phone?


Create an equation for the problem here. Don't put any spaces.



How many weeks will it take?

Answers

Answer:

Let number of weeks be x

10x = 200-150

x=50/10

x=5

Thus it would take him 5 weeks to buy himself a iPhone12

Hope it helps

Wesley drives 12 miles to work every day. During his drive to work he sees 18 billboards. Which ratio shows miles driven to billboards seen by Wesley?

Answers

Answer:

2:3

Step-by-step explanation:

divide both by 6.

Someone please help (10 points each)

Answers

Answer:

80

Step-by-step explanation:

Answer:

x is 80 because it is equal to the other side.

Step-by-step explanation:

PLZZZ HELP I WILL GIVE BRIANLY
What is the equation of the additive relationship represented by this table?


Enter your answer by filling in the box using an integer.


x y
9 5
12 8

Answers

Answer:

x-4=y

Step-by-step explanation:

9-4=5

12-4=8

Answer:

9,5

step-by-step explanation:

sewing a border of ribbon onto her rectangular picnic blanket. The long side of the blanket is 70cm and the short side is 40cm. How much ribbon will she need?

Answers

Answer:

[tex]220[/tex] cm

Step-by-step explanation:

We need to find the perimeter of the rectangular blanket in this case because a border is being sewn onto the blanket. The perimeter of a rectangle can be calculated by multiplying the sum of the rectangle's length and width by 2. As an algebraic expression, that would be [tex]2(l+w)[/tex], where [tex]l[/tex] is the rectangle's length and [tex]w[/tex] is the rectangle's width. We are given that [tex]l=70[/tex] and [tex]w=40[/tex]. Therefore, [tex]2(70+40)=2*110=220[/tex] cm of ribbon will be needed. Hope this helps!

What is the average rate of change of f(x) = 1/4x²-4 over the interval from 0 to 3? ​

Answers

Answer:

no answer there is no answer from the choice

WHAT WOULD THIS BEEEE!!

Answers

the answer is d :) have a good day

Can someone please help me with this questions

Answers

Answer:

a-4

Step-by-step explanation:

b-diagramm

c-1100mn

Surface area of a cushion

Answers

Answer:

need measurments

Step-by-step explanation:


What is 15% of 700?

Answers

Answer- 105
700/100 and the multiply 15

12)
4
24
4
36
6
find the scale factor

Answers

Answer:

2

Step-by-step explanation:

4, 24, and 36 are divisible by 4, but there is a 6 and 6 is not divisible by 4. However, all the numbers are divisible by 2.

Would it be better to have a higher interest rate on a loan or on an investment? Explain.

Answers

Answer:

When a company borrows money it is better to have a low interest rate. The lower the interest rate, the less amount of money the company has to pay back as interest on the loan.

Step-by-step explanation:

Is it better to have a higher interest rate when a company borrows money or to have a lower interest rate?

Find the value of x and the value of the given angle using the picture below?

Answers

Answer:

I think it is 81x

Step-by-step explanation:

It look the same as angle B which is 121 degree. 81x +40 = 121 degree.

it’s 81x. sorry if i’m wrong!

show work please i will give brailiest show work pls
2 - 1 + 5 x 4 x 11


14 ÷ 2 -1 + 3


3 x 8 x 2 – 42 + 5

Answers

1. 2-1+5x4x11
5x4=20
2-1+20x11
20x11=220
2-1+220
2-1=1
1+220=221

2. 14/2-1+3
14/2=7
7-1+3
7-1=6
6+3=9

3. 3x8x2-42+5
3x8=24
24x2-42+5
24x2=48
48-42+5
48-42=6
6+5=11

Scott can you help I am confused... Naviah buys at least 8 but no more than 12 gallons of gas each week. The price of gas ranged from 2.25 to 2.50 per gallon each week. Write a compound inequality to model all of the possibilities amount of money (m) Naviah spends on gas each week.

Answers

Answer:

Amount of money Naviah spends each week  is ranged from 18 to 30

( 18 ≤ m ≤ 30 )

Step-by-step explanation:

Let Naviah buys gas each week = x gallons

As given,

Naviah buys at least 8 but no more than 12 gallons of gas each week.

⇒8 ≤ x ≤ 12

Now,

Let the price of gas each week  = p

As given,

The price of gas ranged from 2.25 to 2.50 per gallon each week.

⇒2.25 ≤ y ≤ 2.50

Now,

Amount of money spend (m) = (Total gas buy)(Price of gas)

                                              = xy

⇒ m = xy

Now,

we have

8 ≤ x ≤ 12 and 2.25 ≤ y ≤ 2.50

Multiply both the inequality , we get

8×2.25 ≤ x.y ≤ 12×2.50

⇒18 ≤ xy ≤ 30

⇒18 ≤ m ≤ 30

∴ we get

Amount of money Naviah spends each week  is ranged from 18 to 30.

Find two integers whose sum is 2 and product is -3

Answers

Answer:

x = -1 and y = 3     x = 3 and y = -1

Step-by-step explanation:

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