If x=-1 work out the value 2x^2 - 6x

5.6e12 in standard form

Janelle brought 7 books. The class now has 14 books. How many books did they already have?

Pearson 11.5 geometry answers lesson quiz

You need $2,500 as a deposit for a new car. You have already saved 50% of this amount. Which calculation could you use to check how much you still need to save?

1/2-1/3 = in simplest form

Leonardo recorded his speed while skateboarding and determind he was traveling 18 feet per seconds. How many feet could he travel in one minute?

If two positive integers p and q are written as p = a^2b^3 and q = a^3b, where a and b are integers, then show that LCM (p, q) * HCF (p, q) = pq

If the original distribution of x values is known to be normal, do we need to make any restriction about sample size in order to claim that the distribution of sample means x taken from random samples of a given size is normal?

What is 4 1/2 divided by 7 1/3 and multiplied by 1 3/5?

Is - 130 closer to 121 or 144