Why is scientific notation used?

to round numbers to the nearest whole number.

to promote reproducibility of data.

to increase the validity of data.

to express very large or very small numbers.

Kate reads books that were 240, 450, 240, 160, 165, 170, 180 pages long. What are the mean median and mode and which one describes the data set best?

Repeating tests usually leads to O more independent variables. O more accurate measurement. O more confidence in the results. o more controls in an experiment.

A circle is centered at (5, - 9) and has a radius of 12. Which of the following is the equation for this circle? A: (x - 5) 2 + (y + 9) 2 = 12 B: (x - 5) 2 + (y + 9) 2 = 144 C: (x + 5) 2 + (y - 9) 2 = 144 D: (x + 5) 2 + (y - 9) 2 = 12

Circumference of a circle is 6.25 what is the area

What is the volume of a cereal box that is 2 inches thick, 12 inches high and 10 inches wide?

Eva earned the following test scores in science: 82, 100, 96, 90, 91 Ms. Wade entered the next score as 0 because Eva was absent on test day and hadn't had a chance to make up the test.

Choose one of the factors of x^15 - 64. a. x^5 - 4 b. x^10 - 4x^5 + 16 c. x^10 - 4 d. x^15 + 8x + 16

Proportion n/11 = 40/55

The value of y varies directly with x, and y = 4 when x = 10. find y when x = 1. a.-2.5 b. 2.5 c. 0.4 d.-0.4

The height of a cylinder is 6 inches. The diameter of the circular base of the figure is 10 inches. What is the approximate surface area of the figure? Use 3.14 for π and round to the nearest whole number.