Answer:
The answer is (1,-9)
Step-by-step explanation:
First, you have to plug -9x to y because y = -9x. Then multiply
-6(-9x) = 54x
-8x + 54x = 46
46x = 46
x = 1
Plug 1 into the first equation to find the value of y.
y = -9(1)
y= -9
Answer:
11) A
12) B
Step-by-step explanation:
11) 10x² + 1 = 0
Subtract 1 from both sides:
10x² = -1
Divide both sides by 10:
x² = -1/10
Take the square root of both sides:
x = ±√(-1) / √(10)
Remember that the square root of -1 is i:
x = ±i / √(10)
To rationalize the denominator, multiply top and bottom by √10.
x = ±i√(10) / 10
Answer is A.
12) 2v² + 8v + 6 = 0
Divide both sides by 2:
v² + 4v + 3 = 0
Use AC method or quadratic formula to factor:
(v + 1) (v + 3) = 0
Set each expression to 0:
v + 1 = 0 or v + 3 = 0
Solve:
v = -1 or v = -3
Answer is B.
A solution for a pair of lines means that they are equal to each other. This occurs when they instersect. Since the lines have the same slope, but are not the same line, they are parallel, so they will never intersect. This means there are zero solutions.
Hope this helps!
Where is the list will all of this the list is needed
Answer:
0.104 (10.4%)
Step-by-step explanation:

= 0.028
= 0.104
= 10.4%