Answer:
The answer is 4a+20....
Step-by-step explanation:
Use the distributive property.
According to which when using the distributive property, you have to distribute (multiply) the 4 to the a and then the 4 to the 5. It looks like this.
4(a+5)
4(a)= 4a
4(5)=20
Thus the expression becomes:
4a+20
Thus the answer is 4a+20....
the answer to this question is b
Answer:
Perimeter=
Step-by-step explanation:
Given:
length of the rectangle= 
Width of the rectangle= 
Perimeter of a rectangle= 2(length+width)
Perimeter 
So, the expression of the perimeter of given rectangle is:

Answer:
1.107 = r
Step-by-step explanation:
To solve this for r, do the following:
Add 10 to both sides, to isolate the r term on the left: 18r^(-8) = 8
Divide both sides by 18, to isolate r^(-8): r^(-8) = 8/18
Invert both sides: r^8 = 9/4
Take the natural log or both sides:
8 ln r = ln 9 - ln 4, or
8 ln r = 0.8109, so that ln r = 0.1014
to find r, raise e to the power ln r on the left and e to the power 0.1014 on the right:
ln r 0.1014
e = e = 1.107 = r
Answer:
Assuming these expressions are listed separately, and it's asking for the specific type of polynomial:
1) binomial, because it is 2 terms
2) trinomial, because it has 3 terms
3) monomial, because it is 1 term
meanwhile, you can learn your greek and latin root words.
Bi means two, tri means 3, and mono means 1.
Step-by-step explanation:
Remember, terms are separated by +'s and -'s, and cannot be simplified further.