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qaws [65]
3 years ago
8

JKLM is a rhombus with an area of 75 square metres. Plz help with mark brainiest !!

Mathematics
1 answer:
Evgesh-ka [11]3 years ago
8 0

Answer:

OJ=5 m

Step-by-step explanation:

Area of rhombus=1/2 d1 *d2

75=1/2*15*d2

75*2/15=d2

10=d2

Therefore, d2=6

d2=10

JL=10

2OJ=10 [ Diagonals of rhombus bisect each other perpendicularly]

OJ=5 m

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Calculating the variance requires finding the product of 21 and 22%. To make this easier we convert 22% into it's decimal form and construct the equation. To back check this answer we can use 10% of 21 voters which equals 2.1% then double that amount to reach 4.2%, knowing that we now have a close approximation of the variance we can eliminate answers a, b, and d, leaving c as the only logical choice.

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3 years ago
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Answer:

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