A company that makes hair-care products had 3,000 people try a new shampoo. Of the 3,000 people, 18 had a mild allergic reacti
on. What percent of the people had a mild allergic reaction?
2 answers:
Answer:
0.6% people had a mild allergic reaction to the shampoo.
Step-by-step explanation:
To find out the percentage of the people who got the mild allergic reaction, we are going to divide the number of people (18) who got the allergic reaction and divide it by total number of people who tried the shampoo (3000) and multiply it by 100.
= * 100
=0.006 * 100
= 0.6%
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ANSWER
The vertex is (1,-3)
EXPLANATION
The given parabola has equation:
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We complete the square to get,
The vertex is of the parabola is (1,-3)