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Questions and answers by
Mariya
Questions (15)
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)
1 answer
255 views
Where should a fourth point be located to form a rectangle?
Question 7 options: (3, -4) (-4, 3) (3, -5) (-5, 3)
0 answers
211 views
a shell of mass M moving with velocity v breaks into two fragments. one of the mass comes to rest. velocity of the second
1 answer
529 views
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?
8 answers
3,188 views
One student conducts a study on the relationship between people’s level of extroversion and the number of close friends they
1 answer
608 views
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
1 answer
1,081 views
How much ice at 0 degrees celsius can be melted with 1kg of steam at 100 degrees celsius, assuming no loss of energy to the
0 answers
964 views
in the moments before you hit a truck, you decide to calculate the impulsive force (impulse) you will feel. you and your bike
0 answers
391 views
When catching a ball, your cricket coach advises you to move your hands backwards with the ball. Explain the physics behind this
1 answer
395 views
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
2 answers
537 views
A car is speeding at constant velocity of 30ms-1 in an 80kmh-1 zone as it passes a stationary police motorcycle hiding. The
2 answers
773 views
A car is speeding at constant velocity of 30ms-1 in an 80kmh-1 zone as it passes a stationary police motorcycle hiding. The
0 answers
683 views
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,
4 answers
819 views
2 questions:
1. Find "a" if (-3,7) is a solution of 2x+ay=26 2. solve system using substitution, linear combination, and
0 answers
745 views
2 questions:
1. Find "a" if (=3,7) is a solution of 2x+ay=26 2. solve system using substitution, linear combination, and
1 answer
566 views
Answers (6)
it's 2020 and I am struggling with this question
1.37
thank you :)
thanks :)
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?
sorry =3 is -3
