All categories

3 years ago

A bag contains 2 green, 9 brown, 7 yellow, and 4 blue marbles.

Mathematics

1 answer:

Oxana [17]3 years ago

4 0

Step-by-step explanation:

Given data

2 green,

9 brown,

7 yellow, and

4 blue marbles.

Sample space S = 2+9+7+4= 22

The probability of picking a ball without replacement

Probability of picking each ball

Pr(green) = 2/22= 1/11

Pr(brown ) = 9/21

Pr(yellow) = 7/20

Pr(blue) = 4/19

Probability of picking yellow then another yellow

P(yellow, then yellow)

=(7/22)*(6/21)= 42/462

=1/11

A. 1/11

You might be interested in

Help me answer please

fiasKO [112]

Answer:

Step-by-step explanation:

b=4x+1 h=x+1 A=175

A=bh

Substitute: 175=(4x+1)(x+1)

Expand: 175=4x^2+5x+1

Subtract 175

4x^2+5x-174=0

Solve w/quadratic formula

(-5 <u>+</u> sqrt(25+2784))/8

Simplify: x=6 or -29/4

Distance is positive, so x=6

4x+1=4*6+1=25

6 0

3 years ago

If you increase your bicycle speed by 5.6 miles per hour, the speed will be 17.9 miles per hour. What is your bicycle speed now?

Andru [333]

Answer:

12.3 mph

Step-by-step explanation:

17.9 - 5.6 = 12.3

7 0

3 years ago

Read 2 more answers

Solve for x.

Daniel [21]

Answer:

$x=-\frac{9}{4} \\ or \:\\x = -2\frac{1}{4}$

Step-by-step explanation:

$-2 (x + 1/4)+1=5\\\\-2\left(x+\frac{1}{4}\right)+1=5\\\\\mathrm{Subtract\:}1\mathrm{\:from\:both\:sides}\\\\-2\left(x+\frac{1}{4}\right)+1-1=5-1\\\\Simplify\\-2\left(x+\frac{1}{4}\right)=4\\\\\mathrm{Divide\:both\:sides\:by\:}-2\\\frac{-2\left(x+\frac{1}{4}\right)}{-2}=\frac{4}{-2}\\\\Simplify\\x+\frac{1}{4}=-2\\\\\mathrm{Subtract\:}\frac{1}{4}\mathrm{\:from\:both\:sides}\\\\x+\frac{1}{4}-\frac{1}{4}=-2-\frac{1}{4}\\\\Simplify\\x=-\frac{9}{4}\\\\x = -2\frac{1}{4}$

4 0

3 years ago

I need it by tmr<br> ill give brainliest thx

Zina [86]

Answer:

21. B. Graph Z

23. A. neither function nor relation

24. D. relation only

Step-by-step explanation:

21. Graph Z is the only graph which does not pass the vertical line test

23. The graph does not pass the vertical line test, AND it is not merely given x and y points like a relation. It is graphed as a squiggly line with no given x and y points, therefore you could not make a relation from it either.

24. There is an x value of -4 twice, meaning the set does not pass the vertical line test, HOWEVER, it is a given collection of x and y values, making it a relation.

I would appreciate brainliest, have an amazing day

8 0

3 years ago

Gene stated that finding

statuscvo [17]

Answer:

Yes, he is correct, just divide any number by 4 and you'll get 25% of that number.

Step-by-step explanation:

3 0

3 years ago