Answer:
the length is 7 or 3 the width is 3 or 7
Step-by-step explanation:
7 x 3 = 21
Answer:
The correct answer is B. 144
Answer:
229.23 feet.
Step-by-step explanation:
The pictorial representation of the problem is attached herewith.
Our goal is to determine the height, h of the tree in the right triangle given.
In Triangle BOH

Similarly, In Triangle BOL

Equating the Value of h

Since we have found the value of x, we can now determine the height, h of the tree.

The height of the tree is 229.23 feet.
F(x^2) = x^2 - 3
5f(x^2) = 5x^2 - 15 = 2x - 8
Placing all the terms on the left side, we get:
5x^2 - 2x - 7 = 0 which factorises to
(5x - 7)(x + 1) = 0
So, x = 7/5 or x = -1
But x is non-negative, so x = 7/5 = 1 2/5
C is the answer.