Evaluate the expression 7a² - 3b³ when a) a= 4, b= -2 b) a= -8, b=5
1 answer:
Answer
Step-by-step explanation:
7a²-3b²
Replace a=4, b=2
7*4²-3*2²
= 112-12
= 100 first answer
7a²-3b²
Replace a=8, b=5
7*8²-3*5²
448-75
= 373 second answer
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Answer:
A'(-4,-3)
Step-by-step explanation:
use formula of reflection over y axis
(x,y)=(-x,y)
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Step One: Find 20% of 156
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Step Two: Find the price of tickets
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Final Answer: $15.60 per ticket
Hope this helps!
