Determine the type and degree of each of the following expressions

9x^4 y^9

x^4-3x^2+7x^5

19a^6b^2 + 8ab^3c - 27a^7

The smallest known galaxy, Segue 2, has an approximate radius of 1.05 * 1015 kilometers. Use the conversion factors 1 light-year = 9.5 * 1012 kilometers and 1 parsec = 3.262 light-years to convert this distance from kilometers to parsecs.

If you put a helium-filled balloon in the refrigerator, what will happen?

A ball rolls off the edge of a horizontal roof at 10 m/s. 2 seconds later, the speed of the ball will be? a. 10 m/s b. 19.6m/s c. 29.6 m/s d. 22 m/s ... ?

Which of the following is a measure of disorder or randomness a. energy b. temperature c. heat d. entropy

Why are gases good at transferring heat through convection?

In what ways, would understanding the body positions, directions, and planes assist you with tasks related to the integumentary, skeletal/muscular, and digestive systems

Concave & convex lens of same mass & radii rotate about an axis passing through their centre & perpendicular to the plane which one will have greater mnment of inertia

Which of the following statements is true? A. Both chemical reaction rates and nuclear decay rates vary with the conditions of the reaction. B. Nuclear decay rates vary with the conditions of the reaction, but chemical reaction rates do not. C.

A star may form a black hole once it cannot?

Kai was 200 meters north of the library when he remembered he had to return some books to the library. It took him 200 seconds to do the round trip. Which best describes Kai's roundtrip?