A function g(x) is defined as shown. G(x) = StartLayout enlarged left-brace 1st Row 1st column 2 + 3 x, 2nd column 0 less-than-or-equal-to x less-than 4 2nd Row 1st column 0.5 x + 10, 2nd column 4 less-than-or-equal-to x less-than 8 3rd Row 1st column 16, 2nd column x greater-than-or-equal-to 8 EndLayout What is the value of g(4)? 10 12 14 16

The correct answer is 4.

Step-by-step explanation:

The function g is defined as

g(x) =

We need to compute the value of the function at 4. This is done by putting the value of x as 4.

∴ g(4) = 0.5 × 4 + 10 = 12 as x = 4

Thus the value of the function g at the value 4 is given by 12.

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.