Use the method of undetermined coefficients to solve . y'' + 4y = t + sin2t , y(0) = y'(0) = 0

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

step-by-step explanation:

p ÷ r = tan(x)

step-by-step explanation:

given that there is a figure below shows a right triangle: a right triangle is shown with hypotenuse equal to q units and the length of the legs equal to p units and r units.

graph is missing so i will create the graph as per given information.

the angle between the legs having lengths p units and q units is y degrees. the angle between the legs having lengths r units and q units is x degrees.

now we need to find about what is p ÷ r equal to.

so we can use trigonometric ratio tan(x)=[altitude]/[base] to find the value of p ÷ r, because p is the altitude and r is the base.

p ÷ r=tan(x)

hence final answer is p ÷ r=tan(x).

answer: 0.26

i used the calculator on google

10 - 75

step-by-step explanation:

there's nothing attached so it's most likely anything in that range.