Answer is in the file below
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Answer:
positive
Step-by-step explanation:
r = - 18
multiply both sides by 3 to eliminate the fraction
3 × 6 = - r ⇒ 18 = - r ⇒ r = - 18
Sqrt(20) = sqrt( 4*5) = 2 root(5)
Mark brainliest please
Hope this helps you
Answer:
5 x 75 = 375w (5 bulbs added up) 1.5 x 375 = 562.5w (running for an hour and a half) 562.5/1000 x 10 = 5.525 cents. 1 Kwh is 1000w running for 1 hour.
Step-by-step explanation: