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Monica [59]
3 years ago
12

To demonstrate probabilities, a mathematics teacher had students draw marbles from a bag which contained 9 yellow marbles and 8

blue marbles. During class, the bag was dropped and 2 yellow marbles and 2 blue marbles were lost. Tell whether the loss of marbles changes the probability of drawing a blue marble from the bag. If so, was the probability increase or decreased? Support your answer by calculating the probability for each situation
​
Mathematics
1 answer:
kolbaska11 [484]3 years ago
7 0

Answer:

The loss of marbles did not change the probability.

Step-by-step explanation:

This is because the loss was even you lost 2 marbles from both category which keeps them equal similar to when you set two equations equal to one another and then you subtract 2 from each side the sides are still equal.

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The Great Pyramid in Giza, Egypt, is a square pyramid. The dimensions of the pyramid at the time of its completion are shown in
Ann [662]
Hey there look like you need some help.
If I give you the correct answer mark me brainleist

First you would find the area of the square:        230*230= 52,900Next you would find the area of one on the triangles:        230*187=43,010 * 1/2=  21,505Then you would multiply the area of the one triangle by four:       21,505*4= 86,020Finally, you would add the area of the square to the combined area of the triangles:        86,020+ 52,900=138,920

7 0
4 years ago
Someone help please
vekshin1

Steps to finding the line in the diagram with the format 'ax + by = c

1. Find the slope

  • To find the slope, we need any two points on the line --> (0,4) and (3,0)

                  Slope = \frac{y2-y1}{x2-x1} =\frac{4-0}{0-3} =-\frac{4}{3}

2. Set up, with any one point on the line and the slope, in point-slope form

   

        (y-y0)=m(x-x0)\\(y-4)=-\frac{4}{3} (x-0)\\y-4 = -\frac{4}{3} x\\\frac{4}{3}x+y = 4

<u>Answer</u>: \frac{4}{3}x+y = 4

Hope that helps!

5 0
2 years ago
Read 2 more answers
N ∆ABC, if sin A = and tan A = , then what is cos A?
leva [86]

Answer:hello :

tanA = sinA/cosA

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Step-by-step explanation:

8 0
3 years ago
Help! <br> Find the value of X and simplify completely.
Svetach [21]

Answer:

x = 8√5

Step-by-step explanation:

In the figure attached, there are three right angle triangles.

So, by Pythagoras theorem,

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and (16 + 4)² = x² + z²

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Now we put the value of z² from equation 1 to equation 3

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Now we put the value of y² from equation 4 to equation 2

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x² = 320

x = 8√5

Therefore x = 8√5 will be the answer.

8 0
3 years ago
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dsp73

Answer:

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