Help plz:)))I’ll mark u Brainliest

ft

Step-by-step explanation:

We know that the height of the object and the height of the shadow it casts are proportional. Therefore, if we let the length of the tree be , we can set up the following proportion to solve for it:

Solving for , we get:

(Cross-Products Property)

(Simplify)

(Divide both sides of the equation by 8 to get rid of 's coefficient)

(Simplify)

Therefore, the tree is ft tall. Hope this helps!

13

step-by-step explanation:

169-1=168

168-3=165

165-5=160

160-7=153

153-9=144

144-11=133

133-13=120

120-15=105

105-17=88

88-19=69

69-21=48

48-23=25

25-25=0

since it took 13times to completely subtract it hence its square root is 13

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