Atree casts a 38 foot shadow at the same time a boy casts a 9 foot shadow. if the boy is 5.5 feet tall, how tall is the tree?

23.2 ft

Step-by-step explanation:

The comparison is height to shadow, so the ratios can be written as height/shadow. One ratio represents the tree while the other represents the boy. The unknown value is the height of the tree, so x will fall in the numerator.  

Find the cross products, set them equal, and simplify.

x/38=5.5/9

9⋅x=38⋅5.5

9x=209

Divide both sides by 9 to isolate the variable x.  

x=23.2

step-by-step explanation:

. your answer will contain x - and y -terms. (1 point) x ( ¿¿ 2 − 7 ) 2 +( y 2 − 9 ) 2 √ ¿ 12. what is the distance from the directrix (the crocodile river) to the point ( x , y )? write this equation. your answer will contain a y -term.

a. -0.3 > -0.33