Answer:
The angles opposite each other when two lines cross. They are always equal. In this example a° and b° are vertical angles.
A snowboarder descends a 1200-foot hill in 3 minutes. What is the mean change in elevation per minute? (400 is not correct!)
1 answer:
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Given:
In a right angle triangle, the measure of exterior angle is .
The measure of opposite interior angle is .
To find:
The value of x.
Solution:
Exterior angle theorem: In a triangle the measure of an exterior angle is equal to the measure of sum of two interior angles.
Using exterior angle theorem, we get
Isolate the variable x.
The value of x is 15. So, the measure of the exterior angle is:
Therefore, the value of x is 15 and the measure of the exterior angle is 151 degrees.
Answer:
Step-by-step explanation:
To factor the equation, break it into two binomials which multiply to make the equation. To write these binomials (x+a)(x+b), find factors which multiply to 30 and add to -13 for a and b.
30: 1, 2, 3, 5, 6, 10, 15, 30
-3+-10 = -13