Given

find the exact value of

Reeves
2021-03-09
Answered

Given

find the exact value of

You can still ask an expert for help

davonliefI

Answered 2021-03-10
Author has **79** answers

Step 1

So,

In first quadrant sin is positive.

Step 2

So, we have to find cos alpha from

There

Step 3

Plug

Multiply numerator and denominator by 2

Answer:

asked 2020-10-28

Hi I need help with thisquestion.
A uniform metal rod, with a mass of 3.1 kg and a length of 1.2 m,is attached to a wall by a hinge at the base. A horizontalwire bolted to the wall 0.51 m above the base of the rod holds therod at an angle of 25 degrees above the horizontal. The wireis attached to the top of the rod. (a) Find the tension inthe wire. (b) Find the horizontal and verticalcomponents of the force exerted on the rod by the hinge.
Thank you

asked 2021-02-09

In Figure, a stationary block explodes into two pieces and R that slide across a frictionless floor and then into regions with friction, where they stop. Piece L, with a mass of 2.6 kg, encounters a coefficient of kinetic friction

asked 2021-02-12

The mechanics at lincoln automotive are reboring a 6-in deepcylinder to fit a new piston. The machine they are usingincreases the cylinder's radius one-thousandth of an inch every 3min. How rapidly is the cylinder volume increasing when thebore(diameter) is 3.800 in

asked 2021-08-17

Jones figures that the total number of thousands of miles that a used auto can be driven before it would need to be junked is an exponential random variable with parameter

Smith has a used car that he claims has been driven only 10,000 miles.

If Jones purchases the car, what is the probability that she would get at least 20,000 additional miles out of it?

Repeat under the assumption that the lifetime mileage of the car is not exponentially distributed but rather is (in thousands of miles) uniformly distributed over (0, 40).

asked 2021-10-14

For an arbitrary n in Z, the cyclic subgroup

asked 2021-01-08

A bank teller has a total of 70 bills in five-, ten-, andtwenty-dollar denominations. the number of fives is threetimes the number of tens, while the total value of the money is$960. Find the number of each type of bill. Solve usngthe Echelon method.
Can someone help me setting up this problem

asked 2022-07-27

what point if equivalent to (1,20°) in polar coordinate?