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a technician can test video player chips at the rate of -3t^2+15t+5 chips per hour (for 0 is less than or equal to t and t is less than or equal to 6), where t is the number of hours after 9: 00 am. how many chips can be tested between 11: 00 a. m. to 3: 00 p. m.? (assume t=0 for 9: 00 a. m.)

the answer is c)8

step-by-step explanaction:

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

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step-by-step explanation: