A telephone pole is tied to a stake with a cable that is exactly 10 feet away from the
based of the pole. The cable creates an
angle of elevation of 68º. If the cable
reaches the very top of the pole then
approximately how tall is the telephone
pole?
a) 10.75 feet
b) 24.75 feet
C) 26.69 feet
d) 40.40 feet

a 10.75 .

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct

the answer is a) y= 2 csc [0.5 (x+pi/2)]-1

step-by-step explanation: