Mathematics College

Sections 10.1-10.3 Review
A bag contains 1 green, 4 red and 5 yellow balls. Two balls are selected at
random. Find the probability if there is no replacement of P(1 red and 2 yellow).

Answers

Answer 1

Answer:

20/45

6/45

Step-by-step explanation:

A bag contains 1 green, 4 red, and 5 yellow balls. Two balls are selected at random. Find P( 1 red and 1 yellow) and P(2 red).

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

# of red/yellow pairs: 4*5 = 20

# of random pairs: 10C2 = 45

P(1red & 1yellow) = 20/45

# of red pairs: 4C2 = 6

# of random pairs = 45

P(2 red) = 6/45

Related Questions

37 1/2 is what percent of 5

Answers

Answer:

750%

Step-by-step explanation:

We know that 100% of 5 is 5,

200% of 5 is 10,

300% of 5 is 15,

400% of 5 is 20,

500% of 5 is 25,

600% of 5 is 30,

700% of 5 is 35,

800% of 5 is 40.

So 37 1/2 percent of 5 must be between 700 and 800 percent of 5. We also know that 2.5 is 50% of 5, and 35 + 2.5 = 37.5. So 37 1/2 is 750% of 5

Twice a number is 17




Write it as an equation

Answers

The answer would be
~2*x=17~

Hope this helps

Have a great day/night

5 3/4 x 2 1/6 ayuda por favor​

Answers

Respuesta: 12 11/24

Espero que esto te ayude!

I need help plz plz ​

Answers

it is 1/3 have a great day !!

Answer:

I know what the answer is

Step-by-step explanation:

The answer is 3. You can tell because 5 times 3 is 15

6 times 3 is 18

7 times 3 is 21

8 times 3 is 24

During her last basketball game, Carmen made 14 field goals out of 30 attempts. What
percent of field goals did she make?

Answers

46.6%..............................

Answer:

46.6666667

Step-by-step explanation:

14/30=0.46666667

*100=46.6666667

round to 46.7%

. If you walk around a circular path TWICE, and the circle has a diameter of 100 m, how far did you walk in TOTAL?

Answers

The total distance traveled was 638.3m.

How to calculate the distance traveled?

To calculate the perimeter of a circle we perform the following operations:

We must keep in mind that the radius of a circle is equal to half the diameter, so the radius of this circle is 100m divided by 2.

100m ÷ 2 = 50m

So the radius of this circle is 50m.

Subsequently, to find the perimeter of the circle we apply the following formula:

2 × π × radius of the circle = perimeter of the circle.

2 × 3.14 × 50 = 314.15m

According to this operation, the distance traveled in one lap would be 314.15m. So in two turns it would be:

314.15m × 2 = 638.3m

Learn more about diameter in: https://brainly.com/question/9762612

In a football league, 4 coaches are needed for every 38 players. If 84 players sign up for softball, how many coaches are needed?

Answers

9


8.842 but the answer would have to be rounded because you can’t have .842 coaches... the answers 9!!!!

In the equation, y= 4x - 3 the y-intercept is 4 true or false

Answers

Answer:

False

Step-by-step explanation:

Slope intercept form is y=mx+b where x is our slope and b is our y value. Thefore, 3 is our y value not 4.

Please help me for brainliest.

Answers

Answer:

Step-by-step explanation:

D

Answer:

D

Step-by-step explanation:

Let's look at the statement.

7y = 14x  and  y = 2x does have infinitely many solutions. Why? Because the first equation can be rearranged to look like the second one. If you divide 7y and 14x by 7, you end up with y = 2x. Look familiar? This means the set of equations has infinitely many solutions.

you drive a car 45 miles at spd r (mph). on return trip, spd is 3/4 r. the round trip took 1 hr 45 min. find avg speed

Answers

Answer:

the agv speed is 223

Step-by-step explanation:

Answer:

51.42 avg mph

Step-by-step explanation:

45+45 = 90 miles total for 1 3/4 hours

90/.75 = 51.42 avg mph

Billy skated 100 meters in 400 seconds. Find the unit rate.

Answers

Answer:

1/4 m/s

Step-by-step explanation:

rate = meters/ seconds = 100/400 = 1/4

Answer:

0.25 meters per second

Step-by-step explanation:

100 meters÷400/ 400 seconds ÷400

=0.25 meters/ 1 second

0.25 meters per second

During a sale the price of a digital camera is reduced by $63 from the original price of 180 by what percentage is the price of the camera reduced

Answers

Answer:

63/180 = 0.35 = 35%

Step-by-step explanation:

^

35%
Step-by-step explanation:
63/180=0.35
move the decimal over 2 spaces 35%

3a + 4b = 5a - 4b solve the problem

Answers

Answer:

a=4b and b=1/4a

Step-by-step explanation:

Answer:

False

Step-by-step explanation:

3a + 4b is the answer because there are no like terms to add

5a - 4b is the answer because there are no like terms to subtract.

Making it false because 3a + 4b = 3a + 4b not 5a - 4b

Solve. 7/3x+1/3x=4+5/3x The value of x is

Answers

the value of x is 4.

Answer:

The answer is x = 4

Step-by-step explanation:

Solve for  x  by simplifying both sides of the equation, then isolating the variable.

~Hoped this helped~

I see you have a rob lox pfp

I play rob lox too :] whats ur user??

Select the correct answer from each drop-down menu.

Brian has started to invest in the stock market. What does he need to know about reporting dividend income on his tax return?

A taxpayer’s dividend income is reported on Form
. The taxpayer must enter this amount in the
section of a tax return. After all deductions have been subtracted, the amount of taxes due will be calculated based on the
.

Answers

Im not sure about the second one but the first one is 1099-DIV and the last one is taxable income. I can tell you the second one is NOT deductions haha

Answer:

1099-DIV

Income

Taxable Income

Step-by-step explanation:

Plato

un numero entero y racional

Answers

Answer:

Los números racionales son aquellos números que pueden ser expresados como una relación entre dos enteros. Por ejemplo, las fracciones 1/3 y –1111/8 ambas son números racionales. Todos los enteros están incluídos en los números racionales, ya que cualquier entero z puede ser escrito como la relación z /1.

Step-by-step explanation:

5 less than a number is under 20

Answers

Answer:

Number = 24

Step-by-step explanation

it is the smallest possible number

Answer:

20>x-5

Step-by-step explanation:

What is the purpose of the viewing and focussing system of the camera?

Answers

Answer: to get a better picture.

Step-by-step explanation:

A cyclist is riding a bicycle whose wheels have a diameter of 2.1 feet. Suppose the wheels turn at a rate of 260 revolutions per minute. (a) Find the angular speed of the wheels in radians per minute. (b) Find the speed of the cyclist in feet per minute. Do not round any intermediate computations, and round your answer to the nearest whole number.

Answers

Answer:

a.1633rad/min

b.1715feet/min

Step-by-step explanation:

We are given that

Diameter of wheel, d=2.1 feet

Radius of wheel, r=[tex]\frac{d}{2}=\frac{2.1}{2}[/tex]feet

Rate=260 rev/min

a. We have to find the angular speed of the wheel in rad/min

1 rev=[tex]2\pi[/tex]radian

Where [tex]\pi=3.14[/tex]

Using the value

Angular speed=[tex]260\times 2\times 3.14/min[/tex]

Angular speed,[tex]\omega=1633rad/min[/tex]

(b)

Speed=[tex]r\omega[/tex]

Using the formula

Speed of  the cyclist=[tex]\frac{2.1}{2}\times 1633[/tex]feet/min

Speed of  the cyclist=1714.65[tex]\approx 1715[/tex]feet/min

In a sample of 1000 cases, the mean of a certain test is 14 and the standard deviation is 2.5. Assume the distribution to be normal. The top 20% of the students will score how many points above the mean

Answers

Answer:

The top 20% of the students will score at least 2.1 points above the mean.

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

The mean of a certain test is 14 and the standard deviation is 2.5.

This means that [tex]\mu = 14, \sigma = 2.5[/tex]

The top 20% of the students will score how many points above the mean

Their score is the 100 - 20 = 80th percentile, which is X when Z has a pvalue of 0.8. So X when Z = 0.84.

Their score is:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]0.84 = \frac{X - 14}{2.5}[/tex]

[tex]X - 14 = 0.84*2.5[/tex]

[tex]X = 16.1[/tex]

16.1 - 14 = 2.1

The top 20% of the students will score at least 2.1 points above the mean.

HELP ME PLZZZZZZ
ALL OF THEM
thx for the help :)

Answers

1. 9/4

2.67/8

3.17/6

4.9/2

5.16/3

6.127/12

7.37/4

8.31/6

9.40/6

10.73/7

11.34/3

12.41/2

a) 9/4
b)67/8
c)17/6
d)9/2
e)16/3
f)127/12
g)37/4
h)41/6
i)47/6
j)73/7
k)34/3
l)41/2

5/6 of 7 what is it. oopoo​

Answers

Answer:

5 5/6

Step-by-step explanation:

5/6 x 7 = 35/6 = 5 5/6

f(x) = -x - 4
g(x) = 2x^2 + 4x + 11
Find: (f*g)(x)

Answers

Answer:

f(x)*g(x)  =   [tex]-2x^{3} - 12x^{2} - 27x - 44[/tex]

Step-by-step explanation:

I am assuming that * means multiplication

(f*g)(x) = f(x)*g(x)

So, f(x)*g(x)  =  (-x-4)([tex]2x^{2} + 4x + 11[/tex]) = [tex]-2x^{3} - 4x^{2} - 11x - 8x^{2} - 16x - 44[/tex]

                                                       =  [tex]-2x^{3} - 12x^{2} - 27x - 44[/tex]

If MN = x+4 and DE = 3x-2, find x. (More info in pic)

Answers

Answer:  D) 10

============================================================

Explanation:

I'm assuming points M and N are midpoints of segments FD and FE respectively. If that's the case, then segment DE is twice as long compared to segment MN. We consider MN to be a midsegment.

So,

DE = 2*(MN)

3x-2 = 2*(x+4)

3x-2 = 2x+8

3x-2x = 8+2

x = 10

ANSWER NEEDED QUICKLY, RIGHT ANSWER WILL RECEIVE BRAINLIEST ♦️

The distance between two cities on a map is 7.4 centimeters. The map uses
a scale in which 1 centimenter is 15 kilometers. What is the actual distance
between these two cities in kilometers?

Answers

111km

the ratio is 1:15 so you do 7.4×15

It is what my friend say

PLEASE HELP ASAP 390I290WJKEFDMSFJFSDFSD

Answers

Answer:

sure with wat? there is nothing and which subject is it math im  really good at math

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation:

Which hill is steeper?

A. A hill that rises 2 feet for every 10 feet of run

B. A hill that rises 2 feet for every 15 feet of run

Answers

Answer:

B. A hill that rises 2 feet for every 15 feet of run.

Step-by-step explanation:

The two must have COPs. We'll narrow them down.

For A, we divide 10 by 2.

[tex]\frac{10}{2} = 5.[/tex]

For B, we divide 15 by 2.

[tex]\frac{15}{2} = 7.5.[/tex]

B has the larger number, so it is B.

Answer:

b because the 2 feet 15 feet long and it is bigger than a the 2 feet and 10 feet long is the smallest so the hill that is steeper is b

Step-by-step explanation:

step one look at the answer choice

step two see which one is bigger

step three then find the smallest

step four put which one is steeper

Margaret earned a scored of 38/40 on her test. What is the decimal expansion of the score she received

Answers

Answer:

0.95

Step-by-step explanation:

38/40=0.95

The answer to this question

Answers

Answer:

30

Step-by-step explanation:

16+ 24 * 5 / 10 = 30

answer is 30 because 6+2 is first which is 8 and the. you continue through the equation with x and then division and addition and subtraction

The cost of seeing a movie was
$12 last year. This year a movie
ticket is $15. What is the percent of
increase from last year to this year?

Answers

there was a 25% increase in the price
Answer:
25%
Explanation:
15-12=3
3•4=12
4:12 = 1:4
1:4= 25:100
25%

If you have any questions just ask
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