Rewrite the statements as a single biconditional statement. If an angle is obtuse, then it has a measure 90º between 180º.
If an angle has a measure between 90º and 180º, then it is obtuse.

An angle is an obtuse angle if and only if it does not measure between 90º and 180º.

An angle has a measure between 90º and 180º if and only if it is obtuse.

An obtuse angle has a measure between 90º and 180º if and only if it is an angle.

An obtuse angle is an angle if and only if it has a measure between 90º and 180º.

6

step-by-step explanation:

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.

no its the same as every other grade

step-by-step explanation: