Square root is not defined to for negative values. For negative values, the answer of square root is a complex number which is not in Real Domain.
So any such values, for which the expression is not defined are not in the Domian. So the domian of square root of x will be All real numbers greater than or equal to 0.
This can be expressed as:
[0 , ∞)
or
x ≥ 0
Answer:
20-8. 3. 4x+(5-3y), when r = 5 and y=-1. 415)+(5-3(-1). 20+ (5+3). 4. -7x-(-4x² ... 3. 3(3x - 1)-11x-1. 9X-3-11X-1. 4. -2(x - 5) +3(-4-). -2x+10-12-3x. [-5x-2. 5. 4-2(x +5)+3x(x - 2). H-2X-10+3x2-6X. [3x²8x-61. 6. 15-6-3)+4(x-3). 15-X+2+4x-12. 3x + 5 ... Objective 2: To find the slope when given an equation of a line.
Step-by-step explanation:
The answer is the second one from the top
<span>1 2/3 x −3 1/2
= 5/3 x -7/2
= - 35/6
= - 5 5/6
answer
A. </span><span>−5 5/6 </span>
5x - 2y = 17
4x - 3y = 8
Try to change one of the equations to isolate a variable, so you can use the new equation and substitute it into the other equation.
5x - 2y = 17
-2y = 17 - 5x
y = -17/2 + 5/2x
Now plug this into the second equation
4x - 3(-17/2 + 5/2x) = 8
4x + 51/2 - 15/2x = 8
8/2x - 15/2x = 16/2 - 51/2
-7/2x = -35/2
x = 5
Plug this into either equation to find y
4x - 3y = 8
4(5) - 3y = 8
20 - 3y = 8
-3y = -12
y = 4
x = 5, y = 4
