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RideAnS [48]
3 years ago
13

Cell phone company X charges $15 for 120 minutes.Cell phone Company Y charges $25.95 for 300minutes.Which company has the lowest

students to teacher ratio?
Mathematics
1 answer:
katen-ka-za [31]3 years ago
3 0
First of all cell phone company to student to teacher ratio?


company X would be best for less minutes. but company Y would be best for more minutes.
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I’ll give the bralyist to the first correct answer
ArbitrLikvidat [17]

Answer:

The answer is 2

From the function when the input is 2 the output is -7. The inverse reverses the order so the input will be -7 and the output will be 2.

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Which type of equation can be used to model the data in the table below?
leva [86]
X| 2|4|6jsososodidididjfjfifififififofioff
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What point is located at (-3, 3)?
Shalnov [3]

Answer: Point A

Step-by-step explanation: Because the line x goes first and then line y goes .And Point A on the line x is on the negative 3 and on line y it is on positive 3

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3 years ago
Read 2 more answers
Which expressions are equivalent to each other?
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B and D if you multiply 13 by z it would be 13z and you can add 5 and 8 because they have the same variable equaling 13z
3 0
3 years ago
11. A quiz has 10 multiple choice questions with 3 choices for each question. Answer the following for someone who randomly choo
11111nata11111 [884]

The required probability for
a. 0.2058
b. 0.98  
c.0.016

<h3>
What is probability?</h3>

Probability can be defined as the ration of favorable outcomes to the total number of events.

Let use binomial distribution.
Probability answering a question correctly=1/3 =0.33
Probability of not answering a question correctly
=1–1/3
=2/3
a) Out of 10 probability of answering 4 correctly

=10c4 x (0.33)^4 x (0.66)^6

Upon simplification, 0.2058

b) Find the probability for getting at least 2 correct answers
= 1 - { 10c8 x (0.33)^8 x (0.66)^2+ 10c9 x (0.33)^9 x (0.66)^1 + (0.33)^10}
= 0.98

c).Find the probability for getting 2 or 3 incorrect answers.


10c8 x (0.33)^8 x (0.66)^2 + 10c7 x (0.33)^7 X (0.66)^3
=0.002 + 0.014

= 0.016

Thus the required probabilities are: 0.2058, 0.98 , 0.016

Learn more about probability here:

brainly.com/question/14290572

#SPJ1


4 0
2 years ago
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