Which one??? I need help

d: 6

Step-by-step explanation:

When it says f(9), it means that the x value will be 9. You'll notice the function you're giving says f(x) = x/9 + 5.

Plug it in.

f(9) = 9/9 + 5

f(9) = 1+5

f(9) = 6

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1  

his first public project he is asked to create a small scale drawing. the garden is a right triangle with base 25m and height 30m. are you trying to solve for the last side/hypotenuse? the irrational form of the answer would be 5\sqrt{61}