Which of the following describes a variable?
a. the length of the track
b. how much the car weighs
c. the highest temperature today
d. a height of 5 feet
apex !

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step-by-step explanation:

the answer will be the last one

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c