Answer:
22 grams
Step-by-step explanation:
loses 50% of it's mass per 22 years
so after 22 years the mass would be 44 grams
22 years later would leave 50% of 44 grams = 22 grams
X=-3/5
3
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5
X=-3/5 would be the answer
A is the best answer…
Work:
-10x-(-4y) will equal -10x+4y the minus minus will cancel out
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Well, both sides are equal to 1, so I'm thinking "="
Answer:
- 4x² + 6xy - y²
Step-by-step explanation:
8x² + 3xy + 4y² - 12x² + 3xy - 5y² ← collect like terms
= (8x² - 12x² ) + (3xy + 3xy) + (4y² - 5y²)
= - 4x² + 6xy - y²
