3.
√250 = √(25 * 10) = √(5^2 * 10) = √(5^2) * √10
… = 5 √10
=> <em>a</em> = 5
4.
√(-300) = √(-1 * 3 * 100) = √(-1 * 3 * 10^2) = √(-1) * √3 * √(10^2) = <em>i</em> * √3 * 10
… = 10<em>i</em> √3
=> -<em>a</em> = 10 and <em>b</em> = 3 => <em>a</em> = -10 and <em>b</em> = 3
=> <em>a</em> - <em>b</em> = -10 - 3 = -13
Answer:
-17
Step-by-step explanation:
you have -3(y+2)2-5+6y so first you need to distibute
=−6y+(−12)+(−5)+6y <----- distributed version
then start combining like terms
(-6y+6y)+(-12+(-5))
after you have combined those you get
-17
It’s 27 for sure because (7-5) is 2 times that by the power of 2 is 4 times that by 6 is 24 and 3 +24 is 27
Answer:
a:multiply the unit rate by 5 hours and see if it equals the total distance.
Step-by-step explanation:
Answer: A. 1.01 Same as 1 1/100 fractions are rational
B. 57 Integers are rational. (Invisible implied denominator is 1)
Step-by-step explanation: c might be, but the denominator is not specified-- or maybe / is supposed to mean square root. So probably not.
D. NO, non-repeating decimal numbers are irrational
