Mathematics High School

What’s the probability?

Answers

Answer 1

Answer:

[tex]\frac{1}{8}[/tex]

Step-by-step explanation:

The probability for a flip on either side of the coin is always 50% or [tex]\frac{1}{2}[/tex]

So to get the probability for the three flips just do:

[tex](\frac{1}{2}) ^{3}[/tex] or [tex]\frac{1}{2}[/tex] × [tex]\frac{1}{2}[/tex] × [tex]\frac{1}{2}[/tex]

Either way you solve it the answer is [tex]\frac{1}{8}[/tex]

Related Questions

What is the 4th equivalent fraction to 1/2?

Answers

Step-by-step explanation:

For example, 2/4 and 3/6 both are equal to ½.

...

Equivalent Fractions Chart.

Unit Fraction Equivalent Fractions

1/2 2/4, 3/6, 4/8..

1/3 2/6, 3/9, 4/12..

1/4 2/8, 3/12, 4/16..

1/5 2/10, 3/15, 4/20,

Answer:

500/1000

Step-by-step explanation:

if you happen to simplify you will get 1/2. hope it helps.good day

qué número entero está entre -2 y 5

Answers

Answer:

1.5

Step-by-step explanation:

-2,-1,0,1,2,3,4,5

Le quitamos un número hasta llegar al medio. En el medio hay dos números, el 1 y el 2. Pues tenemos que buscar el promedio de los dos (1+2=3 y 3÷2=1.5).

1) Matthew can run of a mile in of an hour. What is the unit rate?

Answers

Brrnrb ururrururjbbrejejrjrjjrjrjjrjr rjjrjrjrjr

Find the smallest side of CDE?

Answers

Answer:

Step-by-step explanation:

The smallest side is opposite the smallest angle.

The smallest side is CE

Last year, Mr. Ledger used 18 donuts during the lessons. This year, he used 22 donuts. Place points on the graph to show how many donuts are left at the end of last year's lesson and this year's lesson.

Answers

Answer:

(22,2) and (18,6)

Step-by-step explanation:

Heyyyy so the equation is y=24-x

So let's do 24-x to get y

24-18=6

Same thing

24-22=2

I also did this on Khan so yeah its right :D

Mary typically walks 28 yards south on Pine Street and 45 yards east on Maple Avenue in order to get to school. How much shorter would his walk be if she took the shortcut shown below PLSSSS HELPPPP

Answers

B- 20 yards
Step-by-step explanation:
First you have to find the hypotenuse by finding the square root of 28 squares plus 45 squared which equals 53 yards. Next you have to add the two legs of the right triangle so we can subtract the shortcut length from that. So you have to do 28 plus 45 which equals 73 yards. 73 minus 53 is 20. So the answer is 20 yards.

HELPPPPPPPPPPPPPP!!!!!!!!!!!!!!!!!

Answers

the answer is A : m=-1

Answer:

Step-by-step explanation:

Plzz help me plzz no links i really need help. will mark braiiniest

Answers

Answer:

Step-by-step explanation:

I hope this helps you :)

Answer:

thx for the points

Step-by-step explanation:

please help 20 points

Answers

She can drive 571.4 miles with 22.8 gallons of gas

What is Common denominator of 1/6 and 3/4? 30, 48, 20, or 64?

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

Find the value of v (velocity) and V (volume) from the following equations.

a) v = u + at
Where u = 40, a = - 6, t = 4

( PLEASE HELP FAST)

Answers

Answer:

16m/s

Step-by-step explanation:

Given data

u = 40,

a = - 6,

t = 4

Let us substitute into the given expresssion to find v

v = u + at

v = 40+ -6*4

v= 40+ (-24)

v= 40-24

v= 16m/s

pls help thank you:)

Answers

Answer:

|2x-5|<3

Step-by-step explanation:

.............

what is 47 ounces converted to pints and ounces

Answers

2.9375 Pints

and 47 ounces is, well... 47 ounces

Please Help Jane has 10 cards Jane is going to make a row containing four cards how many unique ways can she ordered the row

Answers

it will be 151200 is the anwser

There will be a total of 5040 unique ways to make arrangements of 4 cards out of 10 so option (A) will be correct.

What are permutation and combination?

When the order of the arrangements counts, a permutation is a numerical approach that establishes the total number of alternative arrangements in a collection.

The number of alternative configurations in a collection of things when the order of the selection is irrelevant is determined by combination.

Given the 4 cards arrangement out of 10

npr = n! /(n-r)!

Here n = 10 , r = 4

10p4 = 10! /(10-4)!

10p4 = 10 × 9 × 8 × 7 × 6! /6!

10p4 = 5040

So there will be a total of 5040 ways to arrange the cards.

For more about permutation and combination,

https://brainly.com/question/13387529

#SPJ5

Could someone help me with these 2 questions

Answers

Answer:

Q5: S.A = 216 cm²

Q6: S.A = 254 cm²

Step-by-step explanation:

Q5:

Surface area of a cube = 6a²

a = 6 cm

Plug in the value of a

Surface area of the cube = 6(6²)

= 6(36)

S.A = 216 cm²

Q6:

Given:

Length (L) = 9 cm

Width (W) = 4 cm

Height (H) = 7 cm

Required:

Surface area

Solution:

Surface area of the rectangular prism = 2(LW + LH + HW)

Plug in the values

S.A = 2(9*4 + 9*7 + 7*4)

= 2(36 + 63 + 28)

= 2(127)

S.A = 254 cm²

Steven wants to buy a new video game. He needs at least $48. He has $26.00 saved. His brother said he would pay him $5 an hour to help him with his
homework. Which inequality can be used to determine the amount of hours, h, Steven must help his brother so that he has enough money for video game?

48 - 26h > 5
В.
5h + 26 2 48
С
26h + 5 2 48
D
26 +5h48

Answers

i think that the answer is C

Help!

An airplane takes off at an angle of 15 degrees with the ground. To the nearest 10 feet, how far has the airplane flown when it has covered a horizontal distance of 1800 feet?

Answers

Answer:

1738.67 feet

Step-by-step explanation:

Imagine a right angles triangle, with the base length of 1800ft and the angle between the base and the hypotenuse to be 15 degrees.

Now, we have to calculate the hypotenuse length, using trigonometric ratios

The ratio that links adjacent side and hypotenuse is cos

So, write an equation:

cos(15) = Adjacent/Hypotenuse = 1800/H

Rearrange to solve.

H = cos(15) x 1800 = 1738.67

This is the distance flown by the aeroplane .

Hope this helps

What is the area of

28
105
38.5
49

Answers

Answer:

105

Step-by-step explanation:

11×14= 154

7×7= 49

154-49= 105

Answer:

105 is ur answer!

you're welcome lol

Which quadratic function is represented by the graph?

f(x) = 0.5(x + 3)(x − 1)
f(x) = 0.5(x − 3)(x + 1)
f(x) = 2(x + 3)(x − 1)
f(x) = 2 (x − 3)(x + 1)

Answers

Answer:

f(x) = 0.5(x + 3)(x − 1)

Alex has six candy bars he wants to cut into fifths. How many 1/5 size pieces will he have

Answers

Answer:

30 pieces.

Step-by-step explanation:

According to the word problem, Alex wants to cut all six of his candy bars into fifths.

5/5 = one whole candy bar.

If there will 5 pieces for every candy bar, we can multiply 5 by 6.

5 x 6 = 30.

There will be 30 of the 1/5 size pieces.

help? its from khan academy

Answers

Answer:

the answer is y=3x+3

Step-by-step explanation:

Answer: 3x+3

Step-by-step explanation:

Find the mx+b

B= 3, starting point on y-axis

M = 3, find rise over run.

Permutations acellus How many ways can 4 books be arranged on a shelf if there are 8 books to chose from? Note: nPr = n! —— (n-r)!

Answers

Answer:

1680 ways

Step-by-step explanation:

From the question,

nPr = n!/(n-r)!.................. Equation 1

Where, n = Total number of books to chose from, r = number of books to be arranged in the shelf.

Given: n = 8 books, r = 4 books.

Substitute into equation 1

8P4 = 8!/(8-4)!

8P4 = 8!/4!

8P4 = (8×7×6×5×4!)/4!

8P4 = 1680 ways.

Hence the number of ways 4 books can be arranged in a shelf if there are 8 books to chose from is 1680 ways

Help please thank youuu

Answers

Answer:

Step-by-step explanation:

A traffic light is green for 2 minutes, red for 40 seconds, and yellow for 10 seconds. When a car approaches the light, what is
the probability that it is not red?

Answers

here total second=170 second

probability that is not red=

[tex] \frac{12}{284} [/tex]

Step-by-step explanation:

i think that is the portability that is not red

The probability that the light is not red is 13/17

How to determine the probability?

The given parameters are:

Green = 2 minutes

Red = 40 seconds

Yellow = 10 seconds

Express green as seconds

Green = 120 seconds

The probability that the light is red is:

P(Red) =Red/Total

This gives

P(Red) = 40/(120 + 40 + 10)

Divide

P(Red) = 4/17

The probability that it is not red is:

P(Not Red) = 1 - P(Red)

This gives

P(Not Red) = 1 - 4/17

Subtract

P(Not Red) = 13/17

Hence, the probability that the light is not red is 13/17

Answers

Answer:

Due to the difference in the interest rate and the quarterly compounding, Joshua will have $212.24 more than Josiah.

Step-by-step explanation:

Giving the following information:

Joshua:

Initial investment (PV)= $750

Interest rate (i)= 0.0341/4= 0.008525

Number of periods (n)= 18*4= 72 quarters

Josiah:

Initial investment (PV)= $750

Interest rate (i)= 0.0285

Number of periods (n)= 18 years

To calculate the future value of each one, we need to use the following formula:

FV= PV*(1 + i)^n

Joshua:

FV= 750*(1.008525^72)

FV= $1,381.98

Josiah:

FV= 750*(1.0285^18)

FV= $1,169.74

Due to the difference in the interest rate and the quarterly compounding, Joshua will have $212.24 more than Josiah.

Answer:

delta math says answer is 100

Step-by-step explanation:

Plot the square root of 9 on a number line

Answers

the answer would be 3. because 3•3=9, square root of 9= 3

What is the surface area of the prism?

40 POINTS!!!!

Answers

Answer: Surface Area: 180

Step-by-step explanation:

V = w·h·l

V = 3 · 4 · 15 = 180

Answer: 180

Please help due soon!!

Answers

Answer:

200.96 ft^2

Step-by-step explanation:

The area of a circle is pi * r^2

This means that the area of that circle is pi * 8^2

8^2 * pi = 64 * 3.14 = 200.96

Learning math. The Core Plus Mathematics Project (CPMP) is an innovative approach to teaching mathematics that engages students in group investigations and mathematical modeling. After field tests in 36 high schools over a three-year period, researchers compared the performances of CPMP students with those taught using a traditional curriculum. In one test, students had to solve applied algebra problems using calculators. Scores for 320 CPMP students were compared with those of a control group of 273 students in a traditional math program. Computer software was used to create a confidence interval for the difference in mean scores (Journal for Research in Mathematics Education, 31, no. 3, 2000).
Conf. level: 95%

Variable: µ(CPMP) — µ(Ctrl)

Interval: (5.573, 11.427)

a) What is the margin of error for this confidence interval?

b) If we had created a 98% confidence interval, would the margin of error be larger or smaller?

c) Explain what the calculated interval means in this context.

d) Does this result suggest that students who learn mathematics with CPMP will have significantly higher mean scores in applied algebra than those in traditional programs? Explain.

Answers

Answer:

D is the answer

Step-by-step explanation:

1. A triangle has two angles that measure 52 degrees and 31 degrees.
What is the measurement of the third angle?

Answers

Answer:

86 degrees

Step-by-step explanation:

Interior degrees of a triangle always add up to 180 degrees

What you would do is add the first two (52+31 = 84)

Subtract this number from 180 to get your remaining degrees

86 degrees

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