On may 22, 1960, an earthquake in chile measured 9.5 on the richter scale. on february 27, 2010, another earthquake in chile measured 8.8 on the richter scale. compare the intensities of the two earthquakes. round to the nearest whole number.

Step-by-step explanation:

We can use Richter scale formula

where

I is intensity

R is Richter scale value

First case:

On May 22, 1960, an earthquake in Chile measured 9.5 on the Richter scale

so, we get

Second case:

On February 27, 2010, another earthquake in Chile measured 8.8 on the Richter scale

so, we get

we can subtract both equations

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

fa tha first one you gonna add y to both sides

it look like this

x-y+y=6+y

x=y+6

therefore your answer is

x =y+6

fa tha second one

you gonna flip tha equation

it gonna look like x-4y=y

then add 4 to both sides

it gonna look like tha

x-4 +4 =y +4

so therefore tha answer is x=y+4

step-by-step explanation: