According to the Rational Root Theorem, -2/5 is a potential rational root of which function? ) = 4x4.72#*#25 O Foxo = 9x47x+10 OF) = 10x - 729 Fox) = 25x4.72​

Option (4)

Step-by-step explanation:

Option (1)

f(x) = 4x⁴- 7x²+ x + 25

Possible rational roots will be,

For the given function,

Possible rational roots =

                                      =

Therefore, is not the possible root.

Option (2)

f(x) = 9x⁴- 7x²+ x + 10

Possible rational roots =

Therefore, is not the possible root.

Option (3)

f(x) = 10x⁴- 7x²+ x + 9

Possible rational roots =

Therefore, is not the possible root.

Option (4)

f(x) = 25x⁴- 7x²+ x + 4

Possible rational roots =

                                      =

Therefore, is the possible rational root.

Option (4) will be the answer.

7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation: