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Dima020 [189]
2 years ago
14

PLEASE HELP ME. PLEASE.

Mathematics
2 answers:
vitfil [10]2 years ago
8 0

Answer:

A, B and C are correct

Step-by-step explanation:

(-a)(b)=-ab

(-a)(-b)=ab

\sf A) \quad 3(-18)(5)=3(-90)=-270

\sf B) \quad (-7)(-3)(10)=7 \cdot 3 (10)=21(10)=210

\sf C) \quad (4)(-25)(-10)=(4)(25 \cdot 10)=(4)(250)=1000

\sf D) \quad (-3)(-5)(8)=(3 \cdot 5)(8)=(15)(8)=120

\sf E) \quad (-10)(-10)(-10)=(10 \cdot 10)(-10)=(100)(-10)=-1000

Gnesinka [82]2 years ago
4 0

Answer:

See below ~

Step-by-step explanation:

A)

  • 3(-18)(5)
  • -90(3)
  • -270
  • Correct

B)

  • (-7)(-3)(10)
  • 21(10)
  • 210
  • Correct

C)

  • (4)(-25)(-10)
  • 250(4)
  • 1,000
  • Correct

D)

  • (-3)(-5)(8)
  • 15(8)
  • 120 ≠ -120
  • Incorrect

E)

  • (-10)(-10)(-10)
  • 100(-10)
  • -1,000 ≠ -10,000
  • Incorrect
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