Mathematics, 24.08.2019 06:10 chaseashley24
5. joan asked 30 randomly selected adult restaurant customers about their choice of beverages. 18 customers said coffee is their favorite beverage. if the restaurant serves 200 adult customers per day, estimate the number who will choose coffee to drink.
a. 100
b. 110
c. 120
d. 130
6. you are surveying students to find out their opinion of the quality of food served in the school cafeteria. you decide to poll only those students who buy hot lunch on a particular day. is your sample random? explain
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Mathematics, 21.06.2019 13:00
Given (1+cosx)/(sinx) + (sinx)/(1+cosx) =4, find a numerical value of one trigonometric function of x. a. tanx=2 b. sinx=2 c. tanx=1/2 d. sinx=1/2
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Mathematics, 21.06.2019 17:00
Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.
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Mathematics, 21.06.2019 18:30
The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.
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Mathematics, 21.06.2019 20:20
Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?
Answers: 1
5. joan asked 30 randomly selected adult restaurant customers about their choice of beverages. 18 cu...
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