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BlackZzzverrR [31]
2 years ago
13

A jar contains 21 brown and 19 blue marbles. A marble is drawn at random. What is the theoretical probability of drawing a blue

marble? P(blue) = 63.3% P(blue) = 47.5% P(blue) = 2.5% P(blue) = 19% P(blue) = 52.5%
Mathematics
1 answer:
Greeley [361]2 years ago
5 0

Answer:

The answer would be the 1st one.

Step-by-step explanation:

When you use a percentage calculator or look it up, you can shay 40 as a percent of 19 and the answer will be 47.5%. You could also divide and get your answer that way as well.

Hope that helps! If you get it wrong, please tell me so I could check my work.  Have a great rest of your day :)!

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Write the equation of the circle graphed below
Norma-Jean [14]

Answer:

The equation of the circle is

(x + 2)² + (y + 2)² = 9

Centered at (-2, -2), with radius of 3 units.

Step-by-step explanation:

The general equation of a circle is given as

(x - h)² + (y - k)² = r²

Where (h, k) is the center of the circle, and r is the radius.

Looking at the graph, the center is the red dot. It corresponds to -2 on the y-axis, and -2 on the x-axis. So, the center (h, k) is (-2, -2).

The radius is the distance from the center of the circle to the edge of the circle. The red dot is the edge of the circle, there are 3 lines that represent 3 units, so we have a radius of 3 units.

Using these in the general equation, we have

[x - (-2)]² + [y - (-2)]² = 3²

(x + 2)² + (y + 2)² = 9

And this is the equation.

6 0
3 years ago
the brand name of a certain chain of coffee shops has a 53% recognition rate in the town of coffleton. An executive from the com
Degger [83]
This problem can be solve using the Binomial Distribution, it is a recurrence conveyance of the conceivable number of effective results in a given number of trials in each of which there is a similar likelihood of accomplishment.

Let be X: coffleton residents recognize the brand name 

n = 10 

p = 0.53

q = 0.47 

P(X = 4) = 

(10)
 
(4)*(0.53^4)*(0.47^6) = <span>0.00340</span>
7 0
3 years ago
Hi please help......​
Scrat [10]

Answer:

9/20

Step-by-step explanation:

45%=45/100

hope this helps

7 0
2 years ago
GET 15 POINTS NOWWWWWWWWW!!!!
anzhelika [568]
Slope = 2/5 ; Passes through (-4, -7) ; Point-slope form

point-slope form : y-y₁=m(x-x₁)

Simply plug everything in :)

Remember !! m=slope

y - (-7) = 2/3(x - (-4))

Simplify.

y + 7 = 2/3(x + 4)

*Some teachers want this simplified more so here's the simplest answer : 

y + 7 = 2/3x + 8/3 *

~Hope I helped!~
3 0
3 years ago
How I can answer this question, NO LINKS, if you answer correctly I'll give u brainliest!
allochka39001 [22]

Answer:

y = -8/3 x - 11

Step-by-step explanation:

3 0
2 years ago
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