Answer:
A shopkeeper marks:
$200 * 1.4 = $280
Step-by-step explanation:
With a discount of 25%:
$280 * 0.75 = $210
The diagram shows that the triangles on the graph had similar ratios, as such their vertical heights to their horizontal are equivalent.
Option D is correct.
<h3>What is the slope of a graph?</h3>
The slope of a graph determines the steepness of the graph and it is the difference between two points on the y-coordinate(rise) and the difference between two points on the x-coordinate(run).



From the diagram attached, we can see that the triangles on the graph had similar ratios, as such their vertical heights(y-coordinates) to their horizontal (x-coordinates) are equivalent.
Learn more about the slope of a graph here:
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1/3+3
Ab=1
-b^²=-9
B=3
A=1/3
a+b=1/3+3
Mark brainliest please
Answer:
60
Step-by-step explanation:
We are given

Firstly, we will simplify left side
and we will check whether it is equal to right side
Left side:
Let's assume y left side expression

now, we can take cos on both sides

we can simplify it

Right side:
Let's assume y left side expression

Multiply both sides by -1

now, we can take cos on both sides

we can simplify it


we can see that
both sides cos(y) value is different
so, this is FALSE.........Answer