An earthquake with a rating of 2.5 is not usually felt.
What is the value of x when the Richter
scale rating is 2.5? Round your answer
to the nearest hundredth.
R = log x
Enter the correct answer.
DONE
R = rating of the earthquake's size on the
Richter scale
3
X = ratio of earthquake intensity to a
minimum level of intensity

answer: i think it is (1,-2)

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.