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3 years ago

Work out the value of 1. 7/2 -a ² 2. 3x-8 = 19

Mathematics

2 answers:

Zanzabum3 years ago

8 0

Answer:

1. -45 1/2.

2. x = 9.

Step-by-step explanation:

a/b - a^b when a = 7 and b = 2

= 7/2 - 7^2

= 7/2 - 49

= -91/2

= -45 1/2.

3x - 8 = 19

3x = 19 + 8 = 27

x = 9.

ratelena [41]3 years ago

3 0

Yes it is very easy, but

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