A) 18+(2*(-7)) = 4
B) (-3(-7))+(-17) = 4
C) (-2(-7))-23 = -9
D) -30-(4(-7)) = -2
So your answer is A and B
<h3>
Answer: Choice A</h3>
- Domain: x > 4
- Range: y > 0
========================================================
Explanation:
We want to avoid having a negative number under the square root. Solving leads to
So it appears the domain could involve x = 4 itself; however, if we tried that x value, then we'd get a division by zero error.
So in reality, the domain is x > 4.
-------------
The range of y = sqrt(x) is the set of positive real numbers. So y > 0 is the range for this equation. Shifting left and right does not affect the range, so the range of y = sqrt(x-4) is also y > 0.
We are dividing a positive number (3) over some positive number in the denominator. Overall, the expression is positive because positive/positive = positive.
Therefore, the range of the given equation is y > 0
-------------
The graph is shown below. We have a vertical asymptote at x = 4 and a horizontal asymptote at y = 0. The green curve is fenced in the upper right corner (northeast corner).
Answer:
There won't be enough arrangement
Step-by-step explanation:
Given
Required
Determine if the possible arrangement will be enough
The 2 letters can be selected from any of the 26 alphabets without restriction.
So, the selection of letters is:
The 3 digits can be selected from any of the 10 digits without restriction.
So, the selection of digits is:
The total arrangement is:
By comparison:
i.e.
<em>Hence, the arrangement will not be enough</em>