A survey was conducted on 37 people so find out the colours that they like. It was found that 20 people like red, 22 people like
1 answer:
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Answer:
The percent increase in the employment from the year to year
is
.
Step-by-step explanation:
Given:
Employment in the year
million.
Employment in the year
million.
To find: The percent increase in the employment.
Solution: We have,
Employment in the year
million.
Employment in the year
million.
Increase in employment million.
Percent increase
Percent increase
Hence, the percent increase in the employment from the year to year
is
.
Answer:
(-∞, -2), (-2, -0.618), and (1.618, 3)
Step-by-step explanation:
The red plus (+) signs indicate the regions in which the function is concave up, and the red negative (-) signs indicate the regions in which the function is concave down.
Note that the sign of the concavity changes at an inflection point.
Let's examine the intervals given.
(-∞, -2): Yes, concave up.
(-∞, -1.17): No. Concave up in (-∞, -2) but concave down in (-2, -1.17).
(-2, 0): No. Concave down in (-2, -1.17) but increasing in (-1.17, 0.0).
(-1.17, 0.689): Yes. Concave up.
(-0.618, 1.618): No. Concave up in (-0.618, 0.689) but concave down in (0.689, 1.618).
(0, 3): No. Concave up in (0, 0.689), concave down in (0.689, 2.481), and concave up in (2.481, 3).
(2.481, ∞): Yes. Concave up.
The three intervals that are concave up are (-∞, -2), (-1.17, -0.689), and (2.481, ∞).
