If three pounds of bananas cost $4.50 find the cost of 10 pounds of bananas
2 answers:
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Answer: C.
Step-by-step explanation:
1. You have the following division:
(As you can see, to find the conjugate of 4-3i you must change the sign between the terms).
2. To solve this division, you must multiply the numerator and the denominator by the conjugate of the denominator, as following:
3. Keeping on mind that , you have:
4. Simplifying:
5. The result is:
Answer:
- A: 9.03
- B: 2 years
- C: 2012, negative
Step-by-step explanation:
A. For x = 18, y ≈ 9.03 . . . . homicides per 100,000
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B. The curve has a maximum at about x ≈ 2.003, about 2 years after 1990.
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C. The model produces negative numbers for x > 22. It will not be valid after 2012.
