What is the answer and steps to 3 divided by 2/5

2 answers:

5 0

3 divided by 2/5

you do the reciprocal of 2/5 which is now 5/2

after that you multiply 3 times the 5/2

multiply the numerators which is 3 x 5 and get 15

then multiply the denominators which is 1 x 2

you are left with 15/2 after and if you want a decimal it is 7.5

il63 [147K]3 years ago

4 0

3 divided by 2/5 is 15/2

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F(z) = (z - 5)(2x + 7) (73 = 3) has zeros at x = -3.5, x=3/7 , x=5 What is the sign of f on the interval 3/7 < x <5?

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<h3>Answer: Negative</h3>

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Explanation:

3/7 = 0.42857 approximately

Pick a number between that value and 5, not including either endpoint. Let's say we pick x = 2

Plug x = 2 into the f(x) function

f(x) = (x - 5)(2x + 7)(7x-3)

f(2) = (2 - 5)(2*2 + 7)(7*2-3)

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