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Vika [28.1K]
3 years ago
14

Evaluate 5z − xy when x= 5, y= 6, and z=11

Mathematics
1 answer:
user100 [1]3 years ago
4 0
Answer:25


The work is shown in the picture below.
Hope it helps :)

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The proportion of students who own a cell phone on college campuses across the country has increased tremendously over the past
pickupchik [31]

Answer:

Binomial, with p = 0.9, n = 15

Step-by-step explanation:

For each student, there are only two possible outcomes, either they own a cellphone, or they do not. The probability of a student in the sample owning a cellphone is independent of whether other students own a cellphone or not. This means that we use the binomial probability distribution to solve this question.

Binomial probability distribution:

Probability of exactly x sucesses on n repeated trials, with p probability.

90% of students now own a cell phone.

This means that p = 0.9

Fifteen students are to be selected at random from a large university.

This means that n = 15

What is the appropriate distribution for X?

Binomial, with p = 0.9, n = 15

7 0
3 years ago
For a field trip, a bus company charges a flat fee plus an additional fee per student. for 25 students, the total cost is 132.50
pochemuha
The answer is y=5x+7.5
8 0
3 years ago
Read 2 more answers
at union middle school , 99 girls or 33% of the girl , play basketball.how many girls attend union middle school?
kolezko [41]

Answer:

300 girls

Step-by-step explanation:

100% represents the whole school

To calculate this amount divide 99 by 33% to find 1% and multiply by 100

school population = \frac{99}{33} × 100 = 3 × 100 = 300



5 0
3 years ago
Divide 25kg in a ratio of 2:3:5
balandron [24]
2 + 3 + 5 = 10

25 ÷ 10 = 2.5

2.5 × 2 = 5
2.5 × 3 = 7.5
2.5 × 5 = 12.5

5 : 7.5 : 12.5
8 0
3 years ago
Ricky walked a total of 4 3/4
Helga [31]

Answer:

19

Step-by-step explanation:

Is he stop every 1/4 mile you get 19

There are 4 1/4 miles in every mile. 4x4(Equation of total 1/4th's in 4 miles) is 16. Add 3 more 1/4th's to get 19

Hope this helps!

7 0
3 years ago
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