A bag contains:


4 blue marbles


2 green marbles


1 red marble


A marble is chosen at random from the bag and not replaced. Then, a second marble is chosen from the bag. What is the probability that the first marble was red and the second marble was green?

Answer:

1+18-11+16

Step-by-step explanation:

if the elevator went up it will be plus but if the elevator came down it will be minus and then you will get 1+18 because it went up and then it go down 11 floor and it will be 1+18-11 and then it went up again 16 floor so the last answer will be 1+18-11+16

Answer:

2.743 x 10 6

Step-by-step explanation:

Answer:

2.743 x 10^6

Step-by-step explanation:

300

1:1

1*300:1*300

300:300

Whenever the two numbers in a ratio are the same it means that they're equal. Hope this helps :)

Answer:

1: y=(3x/2)-4  2 :y=(-x/13)+(15/13) 3: y = 13x+55

Step-by-step explanation:

1:

Begin by finding slope

m = (y2-1)/(x2-1)

(-7-(-4)/(-2-0) = 3/2

next use point slope form

y-y1 = m(x-x1) (you can pick any point to use, I will use (0,-4)

y-(-4) = 3/2(x-0)

y+4 = 3x/2

y=(3x/2)-4

2:

The slope of the line y=13x+2 is 13

Take the opposite sign and reciprocal of 13 to get the slope of the line perpendicular; in this case it's -1/13

Next, just like in problem 1, use point slope form.

y-1 = (-1/13)(x-2)

y-1 = (-x/13)+(2/13)   (convert 1 to 13/13 for like terms and bring over to the left side)

y=(-x/13)+(15/13)

3:

the intercept will be $55 since it's the initial amount

you know that you deposit some amount every week so set this up as an equation

$133 = m(6)+$55     (the amount deposited every week times 6 +the initial $55 will equal $133)

solving for m gets you $13

so the equation is y = 13x+55

plug in 6 for x to check; 13x6 + 55 = 133

hope this helps

Answer:

53

Step-by-step explanation:

first put it in least to greatest

42,42,53,60,78

the middle value is the median

Answer:

what function

we cant see a problem

Step-by-step explanation:

Answer:

3 [tex]\frac{8}{9}[/tex]

Step-by-step explanation:

Answer:

the following 3 are correct statements

A scuba diver is 25 feet below sea level.

An airplane descends 25 feet.

Sala has a $25 debt

Answer:

y = 11t + 8

Step-by-step explanation:

Since the starting fee is 8 dollars and the additional costs are 11 dollars per ticket, you can write the equation as:

y = 11t + 8

Where "t" represents the amount of tickets bought.

Answer: 4

Step-by-step explanation:

from point (0,-4), it goes up 4 and over 1, ending at point (1,0)

Answer:

4

Step-by-step explanation:

count the amount of spaces(or lines) to where the second point is(4) and the go right (1) 4/1 simplified is 4.

plz mark brainiest =)

Answer:

The answer is x=2, so one solution

Answer:

one solution

Step-by-step explanation:

The two lines only intersect one time.

Answer:

union

Step-by-step explanation:

because yes

Answer:

Sarah had $31.80 and she owed 6 friends money.So she owes each friend $5.30.

Hope i helped please mark brainliest

Answer Triangle ABC is dilated by a scale factor of 4 to from triangle A’B’C. The coordinate of vertex A’ are

Step-by-step explanation:

Answer:

Simplify each side of the equation as much as possible. ...

Collect all the variable terms on one side of the equation. ...

Collect all the constant terms on the other side of the equation. ...

Make the coefficient of the variable term to equal to 1. ...

Check the solution.

Step-by-step explanation:

Answer:

2 for the second box and 162for the third box

Step-by-step explanation:

can i get brainliest

Answer:

Look at step-by-step explanation.

Step-by-step explanation:

First write everything in terms of sin and cos:

(sinx)(sinx/cosx) + (sinx)/(sinx/cosx) = (1/cosx)

Then simplify the expression where you can:

(sin^2)/(cosx) + (cosx) = (1/cosx)

Next find a common denominator and add the two numbers on the left side of the equation:

(sin^2)/(cosx) + (cos^2x)/(cos^2x) = (1/cosx)

((sin2^x)+(cos2^x)/(cosx)) = (1/cos)

Finally, use the identity, sin2^x + cos2^x = 1, to simply to numerator:

(1/cosx) = (1/cosx)

Answer:

The answer is A -3 is greater than y and y is less than 3

Step-by-step explanation:

I'm not really sure how to solve these either, but if you type the equations into desmos graphing calculator just make sure the highlighted area in desmos is the same as the points on your question and it will be correct.

Answer:

y=k/x

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

y=−2x+2

Answer:

a) (5,3)

Step-by-step explanation:

For the X coordinate, 1+4=5

For the y coordinate 8-5=3

Answer:

B. y=1/3x+4

Step-by-step explanation:

The graph shows a line with a slope of -3. Perpendicular slopes is the reciprocal with a different sign (positive or negative). The perpendicular of -3 is 1/3, and B. is the only option with this slope.

Answer:

B. y=1/3x+4

Step-by-step explanation:

Answer:

Maximum of 50 persons

Step-by-step explanation:

Straight line equation

let the total prices be y

and the number of persons be x

1.  Brenda's Bridal Catering charges

the expression for the charges is

y=mx+c

y=18x+300---------------1

2.  Sarah's Complete Catering charges

the expression for the charges is

y=mx+c

y=15x+450---------------2

equating 1 and 2 we can then solve for the number of guest as

18x+300=15x+450

18x-15x=450-300

3x=150

divide both sides by 3

x=150/3

x=50

x<=50

Therefore she can invite a maximum of 50 persons

Answer:

A. 1/cos(2x)

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

on edge

Answer:

C

Step-by-step explanation:

just is lol please make me brainliest

Answer:

Yes, they do have the same value

Step-by-step explanation:

4(5)=20

15+5= 20

Answer: Yes

Step-by-step explanation: 15+5 is 20, and 4(5) is also 20, so 20=20

Answer:

Correct: Option a. negative reciprocals

Step-by-step explanation:

Perpendicular lines are defined as those who intersect at an angle of 90°.

There is an easy way to find out if two equations of lines correspond to perpendicular lines or not.

If line 1 is

y=m1x+b1

And line 2 is:

y=m2x+b2

The condition for the lines to be perpendicular is that:

m1*m2=-1

Solving for m2:

[tex]\displaystyle m2 = -\frac{1}{m1}[/tex]

As seen, both slopes are negative reciprocals.

Correct: Option a. negative reciprocals