1. What is the slope of a line that is perpendicular to the line represented by the equation 3x + 4y = 12? A. 3/4
B. -4/3
C. 4/3
D. -3/4

C

Step-by-step explanation:

Given a line with slope m then the slope of a line perpendicular to it is

= -

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

3x + 4y = 12 ( subtract 3x from both sides )

4y = - 3x + 12 ( divide terms by 4 )

y = - x + 3 ← in slope- intercept form

with slope m = -

Then

= - = → C

the fist one is not equalvalent but i think th second one isand the third isnt definetly or the last one is i think. hope this !

step-by-step explanation:

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,