Michael has constructed a device that fits on the end of a water hose. With this device, he can adjust the diameter of a tube connected to the end of the hose. He has found that the
speed of the water coming out of the hose varies inversely with the diameter of the tube
at the end of the hose. With the diameter set at.6 inches, the water will come out of the
hose at a speed of 5 feet per second. How fast will the water be moving out of the tube if
its diameter is reduced to .2 inches?

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

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.