GW
Gerard Wells
Answers (2)
GW
Answered
Solve the system by the method of elimination. {8x2−2y2=−422x2+4y2=102\left\{ \begin{array} { l } 8 x ^ { 2 } - 2 y ^ { 2 } = - 42 \\2 x ^ { 2 } + 4 y ^ { 2 } = 102\end{array} \right.{8x2−2y2=−422x2+4y2=102
A) (1,5) ,(1,−5) ( 1,5 ) , ( 1 , - 5 ) (1,5) ,(1,−5)
B) (1,5) ,(−1,−5) ( 1,5 ) , ( - 1 , - 5 ) (1,5) ,(−1,−5)
C) (−1,5) ,(−1,−5) ( - 1,5 ) , ( - 1 , - 5 ) (−1,5) ,(−1,−5)
D) (1,5) ,(1,−5) ,(−1,5) ,(−1,−5) ( 1,5 ) , ( 1 , - 5 ) , ( - 1,5 ) , ( - 1 , - 5 ) (1,5) ,(1,−5) ,(−1,5) ,(−1,−5)
E) no solution exists
A) (1,5) ,(1,−5) ( 1,5 ) , ( 1 , - 5 ) (1,5) ,(1,−5)
B) (1,5) ,(−1,−5) ( 1,5 ) , ( - 1 , - 5 ) (1,5) ,(−1,−5)
C) (−1,5) ,(−1,−5) ( - 1,5 ) , ( - 1 , - 5 ) (−1,5) ,(−1,−5)
D) (1,5) ,(1,−5) ,(−1,5) ,(−1,−5) ( 1,5 ) , ( 1 , - 5 ) , ( - 1,5 ) , ( - 1 , - 5 ) (1,5) ,(1,−5) ,(−1,5) ,(−1,−5)
E) no solution exists
On Sep 27, 2024
D
GW
Answered
Define power (with regard to hypothesis testing).
On Sep 23, 2024
Power refers to when the researcher correctly rejects the null hypothesis when there are differences between groups.