lorenzo rides his bike at a rate of 5 yards per second. about how many miles per hour can lorenzo ride his bike
1 answer:
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Answer:
- 23
Step-by-step explanation:
We could do this the long way and expand the whole product or note that the terms arise from the product of the a³ and a terms and the product of the a² and a² terms, that is
4a³ × 3a = 12
+ 5a² × - 7a² = - 35
Summing gives
12 - 35
= - 23
with coefficient - 23