Write the following value in scientific notation: 0.00000021

2.1 x 10^6

2.1 x 10 ^-6

2.1 x 10^5

2.1 x 10^ - 7

The population of ages at inauguration of all us presidents who had professions in the military is 62,46, 68,64,57. why does it not make sense to construct a histogram for this data set?

Jerome solved the equation below by graphing log (2, x + log (2, (x - 2))) = 3

How do I find exterior angles

The quotient of a number and 2 is larger than 3

When she subtracts 4 from both sides, 1/2x = - 1/2x results. What is the value of x?

Simplify fully (3x) 3

A seventh grade class rolls a number cube 50 times. The number cube has sides labeled 1 through 6. The table shows the results. Find the relative frequency for "roll a number greater than greater than 3 ."

What is. 08 divided by 97326

Rolling 2 number cubes and getting a sum of 2 is __. certain impossible likely unlikely as likely as not

What is 13.05 to 1 decimal place?