What is the value of this expression when g=-3.5? 8 – 12g-51 A. 20 B. 10 O C. 6 OD. -4

Question

What is the value of this expression when g=-3.5?
8 – 12g-51
A.
20
B.
10
O
C. 6
OD.
-4

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Sapo 4 years 2021-08-21T16:14:46+00:00 1 Answers 21 views 0

Answers ( )

  1. minhkhang
    0
    2021-08-21T16:15:55+00:00
    Reply

    Answer:

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

    Step-by-step 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

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