Answer:
<h3>(-4, 1)</h3>
Step-by-step explanation:
-x-3=y, therefore x = -y-3
-3x - 8y = 4
Find the value of y
Substitute the x in -3x - 8y = 4 with -y-3
We get
-3·(-y-3) - 8y = 4
3y + 9 - 8y = 4
-5y = 4-9
-5y = -5
<h3>y = 1</h3>
_______________
Find the value of x
x = -y-3
x = -1-3
<h3>x = -4</h3>
_______________
Answer (x, y) =
<h3>(-4, 1)</h3>
_____________________
#IndonesianPride - kexcvi
The rate of change in this situation is 3 to 1. Every hour you spend running you are able to advance three miles. 2 hours = 6 miles 3 hours = 9 miles 4 hours = Mindblown+ 12 miles.
Hope this Helps! :)
║Triangular Prism A║
We have to find the area of the triangle. We have 5 and 13.
5÷13=65÷2=32.5
Now multiply that by the height, 2.
32.5×2=65
The volume of triangular prism A is 65 cm³.
║Triangular Prism B║
We have to find the area of the triangle. We have 10 and 6 this time.
6×10=60
60÷2=30
Now multiply it by its height.
30×3.7
111
The volume of the triangular prism is 111 m³.
Answer:
x = 36°n + 7° OR x = 90°n + 37.5° for any integer n
Step-by-step explanation:
Since cos(x) = sin(90°-x), we have
sin(7x-20°) = sin(90°-(3x+40°)) = sin( 50° - 3x )
sin( x ) = sin( y ) implies either:
x = 360° n + y
or
x = 360°n + 180° - y
Generally sin(x) = sin(y) ⇒ x = 180°n + (-1)ⁿ y
First case:
7x - 20° = 360°n + 50° - 3x
10x = 360°n + 70°
x = 36°n + 7°
Second case:
7x - 20° = 360°n + 180° - ( 50°-3x )
7x - 20° = 360°n + 180° - 50° + 3x
7x - 20° = 360°n + 130° + 3x
4x - 20° = 360°n + 130°
4x = 360°n + 150°
x = 90°n + 37.5°
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