Answer:
A, all real numbers
Step-by-step explanation:
The domain is the x value and the x value is the domain.
So when you take a look at the x values, it keeps going on and on
So when x values or y values keep going on forever we call that all real numbers
Hope this helps! Plz mark brainliest!
Answer:
C
Step-by-step explanation:
This is a linear equation in one variable and has 1 solution
12x + 6 = 5x ( subtract 5x from both sides )
7x + 6 = 0 ( subtract 6 from both sides )
7x = - 6 ( divide both sides by 7 )
x = - 
← 1 solution
Answer:
19 inches
Step-by-step explanation:
12^2+15^2=c^2
c=19.2094
You get extraneous solutions anytime the radical becomes undefined under the set of real numbers. for example
does not exsist since the radical cannot be used on a negative number
Answer: 36 cakes
Step-by-step explanation:
There are 4 bakers in this kitchen and they can each bake a cake in 20 minutes.
This means that the number of cakes baked in 20 minutes is 4 cakes.
3 hours in minutes is:
= 3 * 60
= 180 minutes
The number of 20 minute periods in 3 hours is therefore:
= 180/20.
= 9
If 4 cakes are baked in 20 minutes, the number of cakes in 180 is:
= 4 * 9
= 36 cakes
