Two rules come into play here:
1) We cannot divide by zero. Thux, x cannot = -3.
2) The domain of the square root function is (0, infinity). This is the dominant limiting factor.
x + 3 must be > 0. Thus, x must be > -3
The domain of this expression is (-3, infinity).
Answer:
the remaining two vertices must be (4, -7) and (10, -7).
Step-by-step explanation:
The vertices (4, 5) and (10, 5) lie on the same horizontal line, y = 5. The length of the rectangle is the difference between the two x-coordinates: 10 - 4, or 6.
Let's denote 6 as the width. Then the length is twice that, or 12.
Then the remaining two vertices must be (4, -7) and (10, -7).
Check: is the width 6? Does 10 - 4 equal 6? Yes
Is the length twice the width, or 12? Does 5 - (-7) = 12? YES
Answer:
Step-by-step explanation:
It depends on the variable. What is z?
Answer:
11+j=52
Step-by-step explanation:
sum means equal to
Answer:C 2(3n + 12)
Step-by-step explanation:
2 x 3n = 6n
2 x 12 = 24