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3 years ago

2x - y = 3 and x+ y = 0

Mathematics

1 answer:

Kamila [148]3 years ago

4 0

Answer:

I think this is it.....If not let me know

2x - y = 3

Slope = 2

x - intercept = 3/2 = 1.50000

y - intercept = 3/-1 = -3.0000

x + y = 0

Slope = -2.000/2.000 = -1.000

x - intercept = 0/1 = 0.0000

y - intercept = 0/1 = 0.0000

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Read 2 more answers

Hellllppppppppp pleaseeeeeeee

Lesechka [4]

Answer:

F. $x=\frac{5}{2}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Standard Form: ax² + bx + c = 0
Quadratic Formula: $x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}$

Step-by-step explanation:

Step 1: Define

$x^2 - 5x + \frac{25}{4} = 0$

Step 2: Identify Variables

$a = 1\\b = -5\\c = \frac{25}{4}$

Step 3: Find roots

Substitute [QF]: $x=\frac{5\pm\sqrt{(-5)^2-4(1)(\frac{25}{4} )} }{2(1)}$
Exponent: $x=\frac{5\pm\sqrt{25-4(1)(\frac{25}{4} )} }{2(1)}$
Multiply: $x=\frac{5\pm\sqrt{25-25} }{2}$
Subtract: $x=\frac{5\pm\sqrt{0} }{2}$
Evaluate: $x=\frac{5}{2}$

3 0

3 years ago

Jayden is running laps at track practice. The track is 2/5 kilometers around. Jayden runs 1 lap in 2 minutes. How many minutes d

Tom [10]

Answer:

0.08 minutes for a kilometer.

Step-by-step explanation:

If the track is 25 kilometers, and he runs 25 kilometers in 2 minutes, he runs a kilometer in 2÷25 minutes or 0.08 minutes which is 4.8 seconds.

I'm pretty sure the track isn't 25 kilometer or he can't run a lap in 2 minutes. But if so, the answer is 0.08 minutes.

4 0

4 years ago