Answer:
a = 14
Step-by-step explanation:
The mean is the sum of the values divided by the number of values.

Answer: 13/21
Step-by-step explanation:
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Answer:
Rectangle or square
Step-by-step explanation:
The diagonals are perpendicular bisectors of each other. C) All four angles of the parallelogram are right angles. Congruent diagonals eliminates the rhombus. This leaves the rectangle or the square.
The answer is 240.5 hope you get the question
Answer:
<u>Answer</u><u>:</u><u> </u><u>D</u>

• first factorise out 10:

• then find factors of the quadratic equation in the bracket: