Answer: b) -0.625
<u>Step-by-step explanation:</u>
The formula for the z-score is:

3y+4+3y-y=-6
6y-y+4=-6
5y+4=-6
5y=-10
y=-2
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Answer:
Isosceles trapezoid
Step-by-step explanation:
-An isosceles trapezoid is also sometimes called a convex quadrilateral.
-It properties include:
- A line of symmetry can often bisects a pair of opposite sides.
- It has to obtuse alternating with each other after which a pair of acute angles alternate with each other i.e 80°, 80°,100°,100°
- It has a trapezoidal shape which by definition has a two pair of parallel sides.
- The angles on it's base or ceiling are equal hence the name Isosceles Trapezoid.
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