Answer:
<h3>"
-9x+16"</h3>
Step-by-step explanation:
(-3x + 7) + (-6x + 9)
<em>SIMPLIFY</em><em>:</em>
<em>=</em><em>-</em><em>3</em><em>x</em><em>+</em><em>7</em><em>+</em><em>-</em><em>6</em><em>x</em><em>+</em><em>9</em><em> </em>(add)
<em>ANSWER</em><em>:</em>
<em>=</em><u><em>-</em><em>9</em><em>x</em><em>+</em><em>1</em><em>6</em></u>
The total mass of the living things on the farm is 588 kg.
<h2><u>Mass calculation</u></h2>
Since on a farm there was a cow, 2 sheep and 3 chickens, to determine what is the total mass of the 1 cow, the 2 sheep, the 3 chickens, and the 1 farmer on the farm, the following calculation must be performed :
- (6.2 x 10) + (4 x 10 x 10) + (2 x 6 x 10) + (3 x 2 x 1) = X
- 62 + 400 + 120 + 6 = X
- 588 = X
Therefore, the total mass of the living things on the farm is 588 kg.
Learn more about mass calculation in brainly.com/question/14695611
<u>Given:</u>
The angle of elevation from the point on the ground to the top of the tree is 34° and the point is 25 feet from the base of the tree.
We need to determine the height of the tree.
<u>Height of the tree:</u>
Let the height of the tree be h.
The height of the tree can be determined using the trigonometric ratio.
Thus, we have;

Substituting the values, we get;

Multiplying both sides by 25, we have;



Rounding off to the nearest tenth of a foot, we get;

Thus, the height of the tree is 16.9 feet.
Hence, Option B is the correct answer.
Answer:
Step-by-step explanation: