Answer:
x = 3
Step-by-step explanation:
Given
f(x) = - 10x + 45 and f(x) = 15, then equating gives
- 10x + 45 = 15 ( subtract 45 from both sides )
- 10x = - 30 ( divide both sides by - 10 )
x = 3
Answer:
134 degrees
Step-by-step explanation:
3x-6=180
3x=186
x=62
2x+10
=124+10
=134
Answer:
y = 23
Step-by-step explanation:
The diagonals of a rhombus are perpendicular bisectors of each other, thus
∠1 = 90° and ∠1 = 4y - 2, so equating gives
4y - 2 = 90 ( add 2 to both sides )
4y = 92 ( divide both sides by 4 )
y = 23
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.
Sorry, I got a little confused with your question, but this will definitely help (I hope)
Y=mx+b
m=slope and b=y-intercept
This is just in case: y=range and x=domain(you don’t really need these though)...Best of luck to you:)
