Given
MINING A mine produces 42.5 tons of coal per hour.
Find out the how much coal will the mine produce in 9.5 hours.
To proof
As given in the question
A mine produces 42.5 tons of coal per hour i.e in the 1 hour mine produces the 42.5 tons .
Let us assume that the coal produce in the 9.5 hours be x.
than the equation becomes
x = 9.5 × 42.5
x = 403 . 75 tons
403 . 75 tons coal will the mine produces in the 9.5 hours.
Hence proved
If the points are
collinear, then that would mean that the points lie on the same line when joined
to each other. In order to confirm this, the distances between the points must
sum up to the length of the line.<span>
AB + BC = AC
7 + 4 ? 9
11 ≠ 9
<span>Since they do not sum up, therefore, the points are not
collinear.</span></span>
corresponding angles are equal
x=123°
<span>1=<span>ln<span>(<span>x+4</span>)</span></span></span><span><span>ln<span>(<span>x+4</span>)</span></span>=1</span><span><span>ln<span>(<span>x+4</span>)</span></span>=1</span><span><span>e<span>ln<span>(<span>x+4</span>)</span></span></span>=<span>e1</span></span><span><span>x+4</span>=<span>e1</span></span><span><span>x+4</span>=2.718282</span><span><span><span>x+4</span>−4</span>=<span>2.718282−4</span></span><span>
x=<span>−<span>1.281718</span></span></span>
Answer: D
Step-by-step explanation:
16 + 2 - 4 = 14
