Answer:
(a) 4 seconds
Step-by-step explanation:
The given point (4, 0) on the parabola tells you the answer to the question: the coin was in the air 4 seconds before its height is 0. It is no longer in the air at that point.
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<em>Additional comment</em>
In order to match the rest of the problem statement, the first given x-intercept must be (-2, 0).
Answer no entiendo estas cosas supongo que 0.3
Step-by-step explanation:
Answer:
15 bottles are left
Step-by-step explanation:
we say:
20 bottles
- 5 bottles
15 bottles
Answer:
$33
Step-by-step explanation:
60x/100 = 20
Cross multiplying 100 and 20
60x= 2000
Make x subject of formula
X = 2000/60 = 33
Hence original price is $33
Unknown side length of two similar triangles can be found out by scale factor and any of the side lengths.
Step-by-step explanation:
The similarity is one of the criteria of triangles. Two triangles are similar when their respective sides are in similar ratio or proportion. In layman’s term, it can be understood as a condition in which two triangles have similar shapes but not similar sizes.
If ΔABC is similar toΔ XYZ, then their respective sides would be in proportion to each other.
This means AB/XY=AC/XZ=BC/YZ
This common ratio is often termed as “scale factor”
Hence any sides length can be found out if either of the terms (i.e. scale factor, side ) is given.