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19 votes
What is the value of this expression when g=-3.5?

8 - 12g-51
A.
20
B.
10
O
C. 6
OD.
-4

User Mikdore
by
4.3k points

1 Answer

4 votes

Answer:

The value of the expression 8 - I2g - 5I is -4 D

Explanation:

The absolute value always gives a positive value IaI = a and I-aI = a

Let us solve the question

∵ The expression is 8 - I2g - 5I

∵ The value of g is g = -3.5

→ To find the value of the expression substitute g by -3.5

∵ 8 - I2g - 5I = 8 - I2(-3.5) - 5I

∴ 8 - I2g - 5I = 8 - I-7 - 5I

∴ 8 - I2g - 5I = 8 - I-12I

→ By using the rule above

I-12I = 12

∴ 8 - I2g - 5I = 8 - 12

8 - I2g - 5I = -4

The value of the expression 8 - I2g - 5I is -4

User Nodon
by
5.5k points