(a) How far is the right end of the rod (the point B) from the center of the wheel at time t=1/21 sec?
1+√13
(b) Express the x-coordinate of the right end of the rod as a function of t:
(2cos(7πt)+√16−4sin2(7πt),0) .
(c) Express the speed of the right end of the rod as a function of t:

europa2433

europa2433

step-by-step explanation:

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950

what do u need to know

step-by-step explanation:

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.