Which ordered pair would form a proportional relationship with the point graphed below?
V
40
30
20
10
-40-30-20-190
T& 20 30 40 X
(20, -10
-20
-30
-40
(10.-20)
(-30, 20)
(-10.5)
(35.-20)
Please help me ASAP

An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e. g. 98.7654). x f(x) 0 1 2 3

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?