2x^3-42x-40=0
2x^3-42x=40
2x(x^2-21)=40
a. 2x=40=>x=20
b. x^2=21+40=>x^2=61=>x=+-(radical(61)
Answer:
while multiplying or dividing intergers if the sings are the same the answer is positiv in the sings are differnt the answer is negitive
exaple 5 x -5 = -25
5 / -5 = -1
5 x 5 = 25
5 / 5 = 1
You can use a calculator or you could change the percent to a fraction. 20% is equivalent to 20/100.
So just multiply 150 by 20 and divide that answer by 100 to get a number of 30 CDs of boy bands
Here you go!!! Hope it helps...
I think C
Because if a teen watches a T.V show for more than 6 hours it's sure that he's not gonna finish homework.
Hope it helps!
