Answer:
1 1/2
Step-by-step explanation:
not to be rude but cut a serving in half dude
Answer:
Number 1 and Number 4
Step-by-step explanation:
By factoring, you can figure out the roots (x = -2 or x = 2)...
1. x^2 - 4 = 0
--> (x + 2)(x - 2) = 0
--> x = -2, x = 2
2. x^2 + 4 = 0
--> factors weirdly, so I won't write it. You'd have to use the quadratic formula.
3. 3x^2 + 12 = 0
--> 3 (x^2 + 4) = 0
--> factors weirdly (same as above)
4. 4x^2 - 16 = 0
--> 4 (x^2 - 4) = 0
--> 4 (x+2) (x-2) = 0
--> x = -2, x = 2
5. 2 (x-2) 2 = 0
--> x = 2
The solution to the systems if equation y = 4x - 5, y = 2x + 3 is (x, y) = (4, 11)
<h3>Equation</h3>
y = 4x - 5
y = 2x + 3
4x - 5 = 2x + 3
4x - 2x = 3 + 5
2x = 8
x = 8/2
x = 4
y = 4x - 5
= 4(4) - 5
= 16 - 5
y = 11
Therefore, the solution to the system of be equation is x = 4 and y = 11
Learn more about equation:
brainly.com/question/13729904
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Answer:
-3x + 5y = -24
Step-by-step explanation:
The slope = (-9-(-6) / (-7 - (-2)
= -3 / -5
= 3/5.
Using the point-slope form of a straight line:
y - y1 = m(x - x1)
y - (-9) = 3/5(x - -7)
y + 9 = 3/5(x + 7)
Multiply through by 5:
5y + 45 = 3(x + 7)
5y + 45 = 3x + 21
-3x + 5y = -24 is the required equation.
Answer: Length = 11
Width = 9
Step-by-step explanation:
Let x represent the unknown length.
Let x - 2 represent the unknown width.
The perimeter is equal to 2 times x + (x -2)
Equation:
2 (x + (x - 2)) = 40
x + (x - 2) = 40/2
x + x - 2 = 20
2x - 2 = 20
2x -2 + 2 = 20 + 2
The length is: 2x = 22 -> x = 22/2 -> x = 11
The width is: x - 2 = 9