There are 2 green marbles, 7 blue marbles, 3 red marbles, and 4 teal marbles in a jar. If two marbles are selected and not replaced, what is the probability of selecting a blue marble and a teal marble?

Answer:

73

Step-by-step explanation:

Answer:

C. a = 3

b = 7

c = -20

Step-by-step explanation:

x = -b+/- (sq) b^2 - 4ac.

Well the way to plug the numbers in is by using this equation: Ax^2 + Bx + C = 0

S if you use your equation : 3x^2 = 20 - 7x

First you have to move everything to one side.

So it'll look like this:

3x^2 = 20 - 7x

-20      -20

3x^2 - 20 = -7x

+7x  +7x

3x^2 - 20 + 7x = 0

don't forget that... Ax^2 +Bx+ C= 0

3 = A

7 = B

-20 = C

Answer: y=13

Step-by-step explanation:

y=13

Step-by-step explanation:

given that,

x=5

to find,

y=2x+3, when x=5

substitute 5 in the place of "x" we get,

y=2×5+3

according to BODMAS rule( bracket of division multiplication addition and subtraction) first we have to multiply 5 with 2 and then add the product with 3 we get,

y=10+3

y=13

Answer:

Graph

Step-by-step explanation:

The simplest way to graph a linear equation is to make an x, y chart.

Plug in values for x ( 3 values for x works ), then find the y values and graph the cordinates.

Another way to graph the above line is to identify the slope and the y-intercept. Because the function is in slope-intercept form, we can readily see both ( slope intercept form is y= mx + b where m= slope and b= y-intercept )!  So b= 75 and m= 15. So to graph the y-intercept, it is ( 0, b ) and just count the slope from that point!

Final answer:

To graph the equation y = 15x + 75, start by plotting the y-intercept (0,75). Then move 15 units up and 1 to the right from the intercept. Connect the points to create the graph.

Explanation:

To graph the equation y = 15x + 75, you need to recognize it as the linear equation in slope-intercept form, y = mx + b. In this equation, m (slope) is 15 and b (y-intercept) is 75.

Start by plotting the y-intercept which is at the point (0, 75) on the y-axis. Then, from that initial point, use the slope or 'rise over run,' to find the next points. Given the slope is 15 (or 15/1), you will go up 15 units and right 1 unit from the intercept to plot your next point. Continue this process until you have enough points to produce a straight line.

By connecting these plotted points, you create the graph of y = 15x + 75.

Learn more about Graphing Linear Equations

brainly.com/question/28732353

#SPJ2

Answer:

5.5 but to have half a balloon is impossible so we should say 4 just for the case of it

Step-by-step explanation:

We know that there are 8 people and 44 balloons, they want to be shared equally, "equally" is a term for division, so we divide.

44 / 8

==> 5.5

Of course there is no such thing as a half balloon, so if we were to ask how many everyone would get, it would be 4 at most.