A tree casts a 16 foot shadow on level ground. A forestry student uses a clinometer to determine that the sun is at a 70 degree angle of elevation. What is the height of the tree to the nearest whole foot?

312312

step-by-step explanation:

two data sets with the same median will not have the same varaibility

step-by-step explanation:

13.46

step-by-step explanation:

16.80 x .20 = 13.46

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