Answer:
d+9
Step-by-step explanation:
sum implies addition
so you would add d and 9
since d is a variable the most you can simplify is
d+9
Answer: 4.2625
Step-by-step explanation:
11/320=x/124
11*124=320x
1364=320x
x=4.2625
Hopefully I was helpful!
Answer:
The derivative of the function f(x) = -5x+3x is ----> <u>-2</u>
Step-by-step explanation:
Answer: First option.
Step-by-step explanation:
You need to remember that to factorize the given expression
, you need to choose two numbers that when you add them you get "10" and when you multiply them you get "21".
These number are:
7 and 3
Because:

Therefore, you get that the factorization of the expression
is the following:

You can observe that this factorization matches with the first option.
Answer:
I think It's alternative exterior