Rewrite the following parametric equations in rectangular form.

x=e^3t and y= e^-t

a. y=3/x, x> 0
b. x= 1/y^3, y> 0
c. x= -y^3,y< 0
d. y= 1/x^3, x> 0

Calculate the density of benzene if 300ml of it weighs 263g. a. 0.88 g/ml b. 1.14 g/ml c. 78,900 g/ml d. 37 g/ml

Acircle has a circumference of 7.850 units. what is its radius?

You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?