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Ierofanga [76]
3 years ago
8

 A student has a​ one-dollar bill, a​ five-dollar bill, and a​ ten-dollar bill in a box. The student selects a bill from the box

48 times and selects the one dash dollar bill 11 times. What formula should be used to calculate the experimental​ probability? What is the experimental probability of selecting the one dash dollar ​bill? What is the theoretical probability of selecting the one dash dollar ​bill?
Mathematics
1 answer:
viva [34]3 years ago
4 0

Answer:

r/n

22.91%

33.33%

Step-by-step explanation:

To calculate the experimental probability, we must divide the number of times the event occurred by the total number of events, that is:

r / n

r = 11, n = 48

11/48 = 0.2291

In other words, the experimental probability is 22.91%

for the theoretical probability it would be the quantity that there is of that object among the total quantity of objects, in this case it would be:

1/3 = 0.3333

that is, the probability is 33.33%

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Karen is typing a 4,000 word essay. She can type at about 30 words per minute. If she types for 45 minutes on Monday and 55 minu
horrorfan [7]

Answer:The number of words that she would still have to type to finish her essay is 1000

Step-by-step explanation:

Karen is typing a 4,000 word essay. She can type at about 30 words per minute. This means that if her rate remains constant, the total number of minutes that it will take her to finish would be

4000/30 = 133.33 minutes.

If she types for 45 minutes on Monday, it means that the total number of words that she typed on Monday would be

45 × 30 = 1350 words

If she types for 55 minutes on Tuesday, it means that the total number of words that she typed on Tuesday would be

55 × 30 = 1650 words

Total number of words typed on Monday and Tuesday would be

1350 + 1650 = 3000 words

The number of words that she would still have to type to finish her essay would be

4000 - 3000 = 1000 words

8 0
2 years ago
18.2 divided by 18 what’s the answer??
Softa [21]
18.2 divided by 18 is 1.011
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3 years ago
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What does the ordered pair (2,3) represent?<br> A is scratched out
Leno4ka [110]

Answer:

i think its C

Step-by-step explanation:

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The length of a diagonal of a square is 12cm.find its perimeter​
levacccp [35]

Answer:

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Which of the following trigonometric ratios are correct?
den301095 [7]

Hi there! In this problem, you should have the knowledge of three basic Trigonometric Ratio.

  • sinA = opposite/hypotenuse
  • cosA = adjacent/hypotenuse
  • tanA = opposite/adjacent

Now that we know three basic ratio. Let's check each choices!

  • sin50° = d/c

This choice is wrong because we focus on the 50° angle. When we focus on 50°, sin50° should be d/x and not d/c.

  • sin50° = c/x

This choice is also wrong because in ratio, it's cos50° that adjacent/hypotenuse.

  • tan50° = d/c

This choice is correct! As ratio states, tanA = opposite/adjacent.

  • tan50° = x/c

This choice is wrong. x/c is a reciprocal of cosine which is 1/cos. We call the reciprocal of cosine as secant or sec in short.

  • cos50° = x/d

This choice is wrong as x/d is a reciprocal of sine which is 1/sin. We call the reciprocal of sine as cosecant or cosec/csc in short.

  • cos50° = c/x

This choice is right by the ratio. Nothing really much to explain since we follow by ratio that is defined.

Answer

  • tan50° = d/c
  • cos50° = c/x

Questions can be asked through comment.

Furthermore, tan also has its reciprocal form itself which is called cotangent also known as cot in short.

Hope this helps, and Happy Learning! :)

8 0
3 years ago
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