All of these answers are wrong....
Answer:
Step-by-step explanation:
X-4
Two Angles are Supplementary when they add up to 180 degrees. Notice that together they make a straight angle. But the angles don't have to be together.
Answer:
x = 12 or 
Step-by-step explanation:
Find the length of x for one side of the triangle first. To do this, use the Pythagorean Theorem which states: a² + b² = c² or in this case c² - a² = b². c² is 45 and a² is 3*3 or 9. Subtract 45-9 to get 36. Find the square root of 36 to get 6. The opposite side is also going to have a missing side length of 6 so add 6+6 to get 12 as x.
Hope it helps!
Answer:
√10
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5
Step-by-step explanation:
√(2/5) has a radical in the denominator. We want to eliminate that radical. To do this, multiply both √2 and √5 by √5:
√2·√5
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5
This simplifies to
√10
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5