Check the picture below.

so, if we add all the arcs provided, we have a total of 153° + 60° + 53°, which gives us 270°.

keeping in mind that a circle has a total of 360°, the shaded region has to be a sum of 360° - 270°, or 90°.

now, notice the tickmarks on those angles in the graph above, meaning those two angles are twins, and 90°/2 is 45°, so each of those twins is 45°.

arcYW = 60° + 45°.

8 0

4 years ago

What is an equation for the line perpendicular to y = 3x – 1 that passes through (-9, -2)?

FinnZ [79.3K]

Answer:

y = -1/3x - 5

Step-by-step explanation:

Perpendicular lines have negative reciprocal slopes, so the line is:

y = -1/3x + b

Finding the value of b, using the given point (-9, -2)

-2 = -1/3*(-9) + b
-2 = 3 + b
b = -2 - 3
b = -5

The line is

y = -1/3x - 5

3 0

3 years ago

40 POINTS answer correctly

Alexxx [7]

Since the denominator is the number on the bottom, we need to find a common denominator for a and 5a^2. Since a*5a is 5a^2, we have a common denominator - 5a^2! For the fractions, that means that since a*5a=5a^2, we have to multiply -7 by 5a to get -35a/5a^2-9/5a^2=(-35a-9)/5a^2

7 0

3 years ago

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