Answer:15
Step-by-step explanation: this is an equilateral triangle and 45-15-15=15 so no matter what it would be 15
When adding and subtracting with exponents....combining like terms....exponents are not added/subtracted...but coefficients are.
example : 2b^2 + 3 + 3b^2 = 5b^2 + 3
but keep in mind, they have to be like terms to be able to add and subtract them...for instance 2b^2 + 3b^3...u cannot add/subtract them because they are not like terms.
The answer is 4/15, because we have to get the denominaters to be the same, so the LCM of 5 and 15 is 15, so 15/5 is 3 and 4*3 is 12. Now, its 12/15-8/15 which is 4/15. Hope this helps!
Answer:
75 Pages
Step-by-step explanation:
If he has 40% completed, it is 0.40 as a decimal. We are trying to solve for the total number of pages in the book, or the whole.
part/whole = percent
Let x = total number of pages in the book
30/x=0.40
x=30/0.40 = 75 pages in the book
Answer:
x= 7.1
Step-by-step explanation:
use sine because x is the opposite and 10 is the adjacent
set up your equation:
sin(45)= x/10
multiply both sides by 10:
10(sin(45))= (x/10)10
10(sin(45))= x
multiply 10 by sin(45):
7.1=x