Janelle’s hair was 16.8 cm at the beginning of the school year. at the end of the year, the length of her hair had increased by 2.5%. how much did her hair grow during the year?

The hair grow at the end of year (17.22 cm - 16.8 cm) = 0.42 cm

Step-by-step explanation:

Given in the question as:

The height of hair of Janelle's at the beginning of school = 16.8 cm

The length of hair increased by 2.5%

Let the length of hair after increment = x

So, x = 16.8 cm + 2.5 % of 16.8 cm

Or, x = 16.8 cm × ( 1 + )

Or, x = 16.8 cm × (

∴  x = 17.22 cm

 Answer

answer: 590

step-by-step explanation:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

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