Which one of the following statements is true of perpendicular lines?

a. they intersect to form an acute angle.
b. they intersect at one point.
c. they intersect to form an obtuse angle.
d. they never intersect.

How do i find the missing angle measure in a polygon

The table below shows the function f. determine the value of f(3) that will lead to an average rate of change of 19 over the interval [3, 5]. a. 32 b. -32 c. 25 d. -25

Find the directions in which the function increases and decreases most rapidly at upper p 0p0. then find the derivatives of the function in these directions. f(x,y)equals=x squared plus xy plus y squaredx2+xy+y2, upper p 0p0left parenthesis 1 comma negative 4 right parenthesis