A quadrilateral with vertices at A(4.-4), B(4, -16), C(12, -16), and D(12,-4) has been dilated with a center at the origin. The image of D, point D', has coordinates (36, -12). What is the scale factor of the dilation? 1/9 1/3 3 9​

it costs $20 to interview each person for a survey. find the cost to obtain a +- 3% margin of error.

step-by-step explanation:

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answer4 to the second power is 16

and 4 to the third power is 64,

1

x = 1

step-by-step explanation:

0 ÷ x = 0

0 ÷ 1 = 0

55.44 inches

step-by-step explanation:

part a. assuming a perfectly linear relationship, we can find the slope from the first two data points.

slope = m = (change in rainfall)/(change in years)

= (61.80 -62.33)/(2005 -2004) = -0.53/1 = -0.53

then the point-slope form of the equation of the line can be written as

y = m(x -h) +k . . . . . m = -0.53, (h, k) = (0, 62.33)

y = -0.53x +62.33 . . . x = years after 2004

part b. in 2017, x = 2017 -2004 = 13. then the predicted rainfall is

y = -0.53·13 +62.33 = 55.44 . . inches

the predicted rainfall in 2017 is 55.44 in.