Need some help with math hw

x = 20

scalene triangle

Step-by-step explanation:

(4x - 5) + (3x + 5) + 40 = 180

7x + 40 = 180

7x = 140

x = 20

(4(20) - 5) = 75

(3(30) + 5) = 65

40

scalene triangle has all unequal angle measures

X= 20

Step-by-step explanation:

3x+5+4x-5+40=180

7x+40=180

7x=140

x=20

d. all of the above

step-by-step explanation:

let f (x ) is a function and c be a positive real number,   the graph of the function g (x ) = f (cx ) is represented as follows.

when, c > 1,   the function compresses it in the x - direction.

when, 0 < c < 1, the function stretches it.

the function is g ( x ) = (9x )2.

the heighest power of x in g ( x ) = (9x )2 is 2, so the parent function is square function.

the equation of parent function is f ( x ) = x 2 .

the function is g ( x ) = (9x )2 and the parent function is f ( x ) = x 2 .

so, the functions f and g have the following relationship.

g ( x ) = f ( 9x ).

compare the function g ( x ) = f ( 9x ) with g (x ) = f (cx ).

c = 9 ( > 1 ).

so, the function g (x ) = (9x )2 compresses it in the x - direction.

step-by-step explanation: