Solve by extracting roots. Round your answers to two decimal places.

5a² - 85 = 2.2a² - 30

a =

Hello there, What's 6+3=?

Use rounding or compatible numbers to estimate 222 plus 203

Here are the equations of five straight lines. Line A. y + 3x = 4 Line B. 2y = x + 1 Line C. y + 2x = 3 Line D. y = 4x - 2 Line E. 2y = 2x - 1 Two of these lines are perpendicular. Write down the two perpendicular lines.

A text font fits 12 characters per inch. Using the same font, how many characters can be expected per yard of text? A.) 36 characters B.) 144 characters C.) 360 characters D.) 432 characters

The lifetimes of lightbulbs of a particular type are normally distributed with a mean of 392 hours and a standard deviation of 9 hours. find the first quartile, q1.

The radius of a bike tire was meant sure to be 26.7 cm. Find the circumstance of the tire

33 ounces to 11 ounces

In the number 3.637945 the place value of the 9 is?

How to find square root of a big number

9 5/10 minus 1/23 i need the answer in a fraction and i need work.