5) An earthquake had an intensity 10^6 times more powerful than a reference level earthquake, or 10^6*Io. What was the magnitude of this earthquake on the Richter scale?
The magnitude on the Richter scale of an earthquake of intensity I is log10(I/10).

Brent needs to paint a logo made using two right triangles. the dimensions of the logo are shown below. what is the difference between the area of the large triangle and the area of the small triangle? (1 point) select one: a. 4.5 cm2 b. 8.5 cm2 c. 16.5 cm2 d. 33.0 cm2

Find the value of x for which abcd must be a parallelogram -9-6x x-30

What is r i 4.5+10r=-6.5 with work pls