Im in class and i really need an 20 pts & what is the mean? 0, 10, 40, 40, 40, 50, 50, 50, 60, 60

40

Step-by-step explanation:

you add all the numbers up then divide by how many numbers there are

The mean is 40

Step-by-step explanation:

The mean is where you add all the numbers together and then divide by the number of numbers

mean =(0+ 10+ 40+ 40+ 40+ 50+ 50+ 50+ 60+ 60)/ 10

          = 400/10

          =40

the answer is b.

step-by-step explanation:

by the trigonometric ratio tangent, tangent equals opposite divided by adjacent.

therefore, tan(50) equals ac/3

multiply each side by 3 to get: ac=3tan(50)

the answer is b.

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

happy to

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