Answer:
52: 8-Z
54: 18+X
60: 12.3
64: 2.5
52: 8 subtracted from z, the equation will only be 8-z because we do not know what z is.
54: 18 more than a number, we do not know what the number is so we will name it X, more than is adding, so the equation will look like this, 18+X
60: Since y is 6.7, all you have to do is subtract 19-6.7.
64: Since n is 7.5 just divide 7.5 from 3 and you will get 2.5.
Answer:
The set of all numbers less than 2.
Step-by-step explanation:
{x | x < 2}
-Means all values of x that are less than 2.
- this is the set of all numbers less than 2
The answer is 5+8x i think
First picture:
You got the first two right (good job!), so I'll just tackle the third one. If you have to compute 
, it means that you have to substitute 
in place of 
. Differently from the first two points, this will generate a new function, rather than a specific value:
Second picture:
Given the point 
highlighted in the picture, you can deduce that the base is 
units long (since it spans from 
to 
) and the height is 
units long (because it spans from to ). So, the area of the rectangle is the multiplication between base and height:
But we know that 
, so we have
The domain of this function is given by the domain of the square root: we want its argument to be non, negative, so we have
But since the problem is symmetric, the answer is
You can only see the answer 
because, if you choose 
or 
, the rectangle degenerates to a segment, and your exercise doesn't like this scenario, apparently
