What is 390000000 in scientific notation

The factorization of 8x3 - 125 is (2x - 5) (jx2 + kx + 25). What are the values of j and k? A) j = 6 and k = - 10 B) j = 8 and k = 10 C) j = 4 and k = 25 D) j = 4 and k = 10

An object that weighs 1 pound on Earth weighs only 0.17 pound on the moon. zacks dog weighs 17 1/2 pounds on earth. how much does his dog weigh on the earth than tye moon?

Use a common denominator to write equivalent fractions with like denominators. Write in simplest form. 7 2/5 + 4 3/4

The depth of the water in a water tank changes every time someone in the Harrison family takes a bath or does laundry. A bath lowers the water level by 4 inches. Washing a load of laundry lowers the level by 2 inches.

Which expression is equivalent to 2/3x + (-3) + (-2 (-1/3x?

There are 30 students in a class. The teacher will choose 2 students at random to represent the class at an assembly. How many groups of 2 students can be chosen?

Angle 1 is obtuse angle 2 and 3 are acute angle 1 plus angle 3 = ?

Twelve of the 28 students in a class have a dog. What is the ratio of students who have a dog to the students who do not?

Whats an example of a repeated decimals

How do I find the rate of something?