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1 answer:
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Answer:
- y = 32.1x +779.9
- 1165 cases in 2010
Step-by-step explanation:
A suitable statistics calculator can tell you the coefficients of the linear regression equation. In the attached, we put the given x- and y-values into a table and asked for the best fit equation. Rounded to tenths, the equation is ...
y = 32.1x +779.9
The year 2010 is 12 years after 1998, so we can find the desired projection using x=12.
y = 32.1×12 +779.9 = 385.2 +779.9 = 1165.1
The number of cases is projected to be 1165 in 2010.
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Answer:
a) The measure of the reference angle is 45°
Step-by-step explanation:
Reference angle:
= 45°
ANSWER
C) 5.1 units
EXPLANATION
The coordinates of A are (5,2).
If this point is translated 1 unit to the left and 5 units down to create point A'.
Then A' has coordinates
The distance between A and A' is calculated using the distance formula,
We round to the nearest tenth to obtain,
The measurement that is closed to the distance is 5.1 units
C) 5.1 units
EXPLANATION
The coordinates of A are (5,2).
If this point is translated 1 unit to the left and 5 units down to create point A'.
Then A' has coordinates
The distance between A and A' is calculated using the distance formula,
We round to the nearest tenth to obtain,
The measurement that is closed to the distance is 5.1 units