Answer:
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Suppose we know that the birth weight of babies is Normally distributed with a mean 3500g and a standard deviation of 500g. What
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Answer:
A.) x=90°
Step-by-step explanation:
Note:
The triangle shown is an isosceles triangle, which means that it has 2 congruent sides (as shown by the small intersecting lines), and this also means that it has two congruent angles.
We are given an angle measure adjacent to one of the missing angles. These two form supplementary angles, which means that they're sum is equal to 180°, or a straight line. So, to find:
y is the unknown angle. Solve for y:
y is 45°. Since this and the other angle are congruent, add:
Note:
Triangles angles will always add up to a total of 180°.
To find the missing angle x°, use:
These are the angles in a triangle. Substitute any known values and solve:
The missing angle x° is 90°.
:Done