So I'm stuck on this question: -6^{4x-5}=-20 I know that I'm supposed to use log to isolate the variable, but I can't take the log of a negative number. Could someone please explain how to solve this in steps?
The Mckinney family has a pond in their yard with water lillies. The area of the lilies' leaves cover twice as much of the pond as they did 35 days ago. The leaves will completely cover the pond in 80 days if they continue to grow unchecked. The McKinneys want to cut back the lilies when they have c...
I can't figure out this problem: Determine all possible values of x to one decimal place, for -pi<x<3pi tanx=-4.25 To start off, how would I get the reference angle? Oh and the answer is supposed to be -1.3, 4.9, 8.1
Hey guys it turned out I did have to do tan^{-1}4.25 but without the negative sign -_- So the reference angle would be 1.34 and then i was able to find the other values.
I'm not sure if I'm suppossed to find the value of 5pi/6 (which is 1/2) and then subtract 2pi from it. Or is it sin(5pi/6)-sin(2pi)? Also, can anyone tell me how to figure out the equation of this tangent? I think the answer is tan(x-pi/4)-1, but I'm not sure. Graph is in link below. http://imagesha...
Q) A crystal in the shape of a cube is growing in a test tube. Estimate the rate at which the surface area is changing with respect to the side length when the side length of the crystal is 3cm. This question is from a lesson based on instantaneous rates, rate of change, etc. I don't really understa...
Well so far, I've learned to find instantaneous rates of change by setting up a table with intervals of numbers that approach x in (x,y). Using these intervals I'd then substitute the numbers into the model's equation and find change in f(x)/change in x. But for this problem they do not give me an e...