Mathematics, 19.03.2020 07:52 alexavasiliou
A child wanders slowly down a circular staircase from the top of a tower. With x, y,zx, y,z in feet and the origin at the base of the tower, her position tt minutes from the start is given by x = 10cos t, y = 10sin t, z = 90 - 5t.
(a) How tall is the tower?
(b) when does the child reach the bottom?
(c) What is her speed at tme t?
(d) What is her acceleration at time t?
Answers: 1
Mathematics, 21.06.2019 23:00
Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.
Answers: 1
Mathematics, 21.06.2019 23:00
The areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?
Answers: 1
Mathematics, 21.06.2019 23:40
If f(x) = -5x + 1 and g(x) = x3, what is (gºf)(0)? enter the correct answer
Answers: 1
Mathematics, 22.06.2019 03:30
Adan has decided to purchase an $9000 car. he plans on putting 20% down toward the purchase and financing the rest at 7.9% interest rate for 3 years. find his monthly payment a) $225.29 b) $298.81 c) $204.78 d) $236.89
Answers: 1
A child wanders slowly down a circular staircase from the top of a tower. With x, y,zx, y,z in feet...
Mathematics, 25.10.2021 17:20
Mathematics, 25.10.2021 17:20
English, 25.10.2021 17:20
Physics, 25.10.2021 17:20
History, 25.10.2021 17:20
Mathematics, 25.10.2021 17:20
Mathematics, 25.10.2021 17:20
Mathematics, 25.10.2021 17:20
Mathematics, 25.10.2021 17:20
English, 25.10.2021 17:20
Mathematics, 25.10.2021 17:20
Mathematics, 25.10.2021 17:20
English, 25.10.2021 17:20
Physics, 25.10.2021 17:20
Chemistry, 25.10.2021 17:20
Mathematics, 25.10.2021 17:20
English, 25.10.2021 17:20
SAT, 25.10.2021 17:20
Mathematics, 25.10.2021 17:20