Consider the function f(x)=−2/3x+5 . what is f(1/2) ?

5 1/3

Step-by-step explanation:

f(1/2) means the value of f(x) when x = 1/2.

So we substitute for x:-

f(1/2) = 2/3(1/2) + 5

= 2/6 + 5

= 5 1/3 (answer)

2/5

Step-by-step explanation:

1/2 you would fill in for X the rest you would just cancel out and then divided 5 and 2 and you get a decimal and then turn into a fraction

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

there is no points to select.

step-by-step explanation: