Answer:
The Exterior Angle of a Triangle Formula states that the measure of an exterior angle is equal to the sum of its remote interior angles. Therefore, r + 58 = 130 which means r = 72°.
Answer:
option 1
Step-by-step explanation:
÷ 
• leave the first fraction
• change division to multiplication
• turn the second fraction 'upside down'
=
×
( cancel 5 and 10 by 5 )
=
× 
= 
Answer:
8
Step-by-step explanation:
Use the pythagorean theorem. The hypotenuse (c) is 10, and one of the sides, let's say (b), is 6. Therefore, we need to solve for a and plug and chug. Let's do that:


Now let's plug in what we know:

Therefore, a = x = 8
Answer:
(4,0)
Step-by-step explanation:
The equation of the line is y = (-1/2)x - 2. At the x-intercept, y = 0. Setting y = (-1/2)x - 2 to zero, we get (1/2)x = 2, and thus x = 4.