Confused so can someone help

Mathematics

2 answers:

Soloha48 [4]3 years ago

8 0

The correct answer to this would be graph a.

Shkiper50 [21]3 years ago

8 0

For this case we must indicate the graph corresponding to the following inequality:

$y$

As it is observed that equality is not included, we can discard options C and D. We are left with the graphs of the dotted border line.

Graphic A:

We evaluate in the inequality the point $(0,0)$

$0$

The inequality is met.

Thus, the inequality is represented in graph A.

Answer:

Option A

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An engineer needs to determine the distance across a river without swimming to the other side. The engineer notices a tree on th

nasty-shy [4]

Answer:

Step-by-step explanation:

The engineer can use a clinometer to measure the angle of elevation of the top of the tree. Let the height of the tree be represented by x, the she could determine the distance across the river, d, by applying the trigonometric function.

Tan θ = $\frac{opposite}{adjacent}$

= $\frac{x}{d}$

the the distance, d = x ÷ Tan θ

Assume the angle of elevation of the top of the tree is $30^{o}$ , and the height of the tree is 10 m, then the distance, d, across the river would be;