Mariya

2 questions: 1. Find "a" if (=3,7) is a solution of 2x+ay=26 2. solve system using substitution, linear combination, and graphing: 3x-2y=3 5x+4y=16

A boat sets off perpendicular to the bank, to cross a river width of 250m. The speed of the boat in still water is 3.20ms-1, however there is a current downstream at 1.20ms-1, which puss the boat sideways. a) Find the resultant velocity of the boat. b) Fi...

Jenny is riding on a bus. She has been unable to find a seat and so she is standing in the aisle. Explain, in physics laws and principles, why it is important that she hold onto something while she is completing her journey.

When catching a ball, your cricket coach advises you to move your hands backwards with the ball. Explain the physics behind this 'follow through' technique.

What is the best kind of study to conduct when wanting to show that Variable X has a direct effect on Variable Y? The answer choices I am given are experiment, survey, observational study, non experimental study. I think the right choice would be an exper...

One student conducts a study on the relationship between people’s level of extroversion and the number of close friends they have. He computes Pearson’s r, which comes out to be – 1.70. Which of the following is most clearly true? A. The relationship betw...

Jamil spends 1/3 of his pocket money on sweets. He saves 1/9 of his pocket money. What fraction of his pocket money is left?

a shell of mass M moving with velocity v breaks into two fragments. one of the mass comes to rest. velocity of the second fragment is

find the gradient of a line pe rpendicular to the line joining these pairs of points (a) (1,2) and (5,-6) (b) (2,4) and (3,8) (c) (-2,1) and (2,-4)

sorry =3 is -3

thanks. the answers to b. is 167m and the answer to d. is 93.7 m. but I'm not sure how to get that. would you please care to explain how to get that?

thanks :)

thank you :)

1.37

it's 2020 and I am struggling with this question