The accompanying data contains the depth (in kilometers) and magnitude, measured using the richter scale, of all earthquakes in a particular region over the course of a week. depth is the distance below the surface at which the earthquake originates. a one unit increase in magnitude represents ground shaking ten times as strong (an earthquake with magnitude 4 is ten times as strong as an earthquake with magnitudedepth magnitude0.76 0.844.93 0.478.16 03533.58 1.3221.2 1.6135.03 4.5710.05 5.0247.91 1.99depth: μ= km ; m= km; range= ; σ= km ; q1= ; q3=

magnitude: μ=; m=; r=; σ=; q1=; q3=

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

salary

step-by-step explanation:

both triangles are similar because 2 is just smaller than the big one 1 is similar because they are facing different way's but are similar to each other

step-by-step explanation:

since no one answered yet i will give it a shot, not completely sure tho.

i think it should be y=cos(x+2pi), (third answer, answer c)

good luck.