A graph titled Scenario A, Swimmer's Distance to time has time (seconds) on the x-axis, and distance (meters) on the y-axis. Points are at (5, 10), (10, 18), (15, 28), (20, 36), and (25, 47). A 2-column table with 5 rows titled Scenario B, 100 meters time to swimmer's height. Column 1 is labeled height t (inches) with entries 67, 69, 70, 70, 72. Column 2 is labeled Time (seconds) with entries 52.34, 55.76, 54.6, 53.11, 54.03. Compare these two scenarios.

Which scenario, A or B, represents a function?

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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step-by-step explanation:

659

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct