Answer:
<h2>x < - 2</h2>
Step-by-step explanation:

First subtract 7x from both sides of the inequality
That's

<u>Add 10 to both sides of the inequality</u>

<u>Divide both sides by - 15</u>

Since the denominator is negative the sign will change
We have the final answer as
<h3>x < - 2</h3>
Hope this helps you
Answer:
The length of the shadow is decreasing 8 metres per second.
Step-by-step explanation:
In the attached figure, we draw the situation of the bear approaching the tree.
We can use the Tales to make some calculations.
The proportion between the height of the bear (h) and his shadow (S) is equal to the proportion between the height of the flashlight (H) and the sum of the distance of the bear (d) and the bear shadow.
This can be written as:

If we clear S we have:

We know that the distance is a function of time and it is reduced, as the bear approaches the tree, as a rate of 6 m/s.
We can express then the rate of variation of the shadow S as:

The length of the shadow is decreasing 8 metres per second.
Answer:37.5
Step-by-step explanation:
5*750/100 =37.5
Answer: A. x + (4x - 85) = 90
In this case, the two angles are complementary. This means they add up to 90°. Therefore, the equation is x + (4x - 85) = 90.
Answer:

Step-by-step explanation:
The arithmetic sequence is given as: 
We are told that the 10 numbers add up to 100.


We know that the nth term of an arithmetic sequence

Therefore, the second number
