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ivanzaharov [21]
3 years ago
5

Evaluate the expression a²-2b when a=5 and b = 3​

Mathematics
1 answer:
frez [133]3 years ago
7 0
Answer : 19
5^2-2(3)
25-6
19
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Need some help please would really be greatful
Gnesinka [82]

Answer:

x = 100°

Step-by-step explanation:

Actually the drawing is very inaccurate, so it is a regular pentagon, otherwise x would be 60° and none of the answers would fit.

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Here n = 5, so the sum of all angles is (5-2) * 180° = 540°

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The Answer is $360

8x20=160       160x1.50=<u>240</u>

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