Answer:
Step-by-step explanation:
8x + 6y = 48.....reduces to 4x + 3y = 24
2x - 3y = -6
4x + 3y = 24
-------------------add
6x = 18
x = 18/6
x = 3
2x - 3y = -6
2(3) - 3y = -6
6 - 3y = -6
-3y = -6 - 6
-3y = -12
y = -12/-3
y = 4
solution is : (3,4)
the ordered pair (3,4) lies in quadrant I
the x coordinate of the solution is 3
the y coordinate of the solution is 4
The measure of the angle of elevation from the ground to the top of the ladder is 68.73 degrees
<h3>Angle of elevation and depression</h3>
These method is used to determine the side and angles of a triangle
From the question given, we have the following parameters
Base of the building = 7feet (Adjacent side)
Height of the building = 18 feet (Opposite side)
Required
angle of elevation of the building
Using the SOH CAH TOA identity
tanФ = opp/adj
tanФ = 18/7
Ф = 68.73 degrees
Hence the measure of the angle of elevation from the ground to the top of the ladder is 68.73 degrees
Learn more on angle of elevation here: brainly.com/question/88158
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Slope is the steepness of a line while the y-intercept is the point where the line crosses the y-axis.
Answer:
Well if the angle is drawn to scale you can use a protractor.
But if it’s not you need to divide the known length by the sine of its opposite angle.
So find the sine of the angle opposite to the known length.
