Why is scientific notation used?

A. to round numbers to the nearest whole number

B. to promote reproducibility of data

C. to increase the validity of data

D. to express very large or very small numbers

The sum of two numbers is 47. one of the numbers is 2 more than twice the other number. find the value of the smaller number.

Which of the following expressions are perfect-square trinomials? Check all of the boxes that apply. x2 - 16x - 64 4x2 + 12x + 9 x2 + 20x + 100 x2 + 4x + 16

On the same set of axes, sketch graphs of the height and co-height functions for a passenger car starting at the 3 o'clock position on a ferris wheel with a diameter of 120 feet its bottom 10 feet off the ground and completing one turn.

The leader's dive watch shows that they descended 33 feet from their starting position. Their current position is now 48 feet below sea level, but there is no record of their starting depth.

Ron plans to cover a 20-foot by 32-foot portion of his backyard with stone. He wants to leave 3 spaces uncovered for planters. Each of these planters is to be a square measuring 3 1/2 feet on each side. How many square feet will be covered in stone

The rquation of a citcle is x^2+y^2=16 what is the radius of the circle

BETH and Carley are selling candy bars to raise money for new cheer outfits. Beth has sold one less than twice the number of candy bars carely has sold. If they have 188 candy bars in all how many has Beth sold?

Mr. Smith has 28 sixth graders and 35 seventh graders. If he wants to break the two grades into identically sized groups without any students left over, how many students should be in a group

1. What is a perfect square? 2. What is the square root of 4x²? 3. What is the square root of 25? 4. Factor 4x² + 20x + 25.

What is the answer to 6 (-3-4y) simplifying algebriac expressions