Answer:
The tree is 14 ft. tall.
Step-by-step explanation:
Height of the building/ Height of the tree = Shadow of building/ Shadow of tree
30/x = 75/35 Cross multiply
75x = (30)(35)
75x = 1050
x = 1050/75
x = 14
The 'i' should go in front of the square root, not inside it.
So the answer should be 
--------------
The way they wrote the expression
is bit misleading as it might imply that the 'i' is under the square root. However the square root ends after the "5". It might be better to say
so there is clearer separation. But sticking the "i" in front is also a valid option.
side note: the plus minus part is already handled so there's no need to worry about that.
Answer:
StartRoot 58 EndRoot cm
THE ANSWER IS D
Step-by-step explanation:
Do -104 negitiive 8 times.then you will have it.