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2 years ago

Solve 4a - b^2 a = 3 b = 2 c = 1

Mathematics

1 answer:

Nastasia [14]2 years ago

3 0

Answer:

Step-by-step explanation:

(4)(3)−22

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Sherane rolls a standard, six-sided number cube.

ale4655 [162]

Answer: 1/3 or 33.3% (rounded to nearest tenth)

Step-by-step explanation:
3 and 6 are multiples of 3
6 sides of a dice
2/6= 33%

4 0

2 years ago

Solve - 4x2 - 4x - 9 = 0, stating your solutions in the form a = bi. Someone please answer!!

PIT_PIT [208]

Answer:

$x=-0.5 \pm -i\sqrt{2}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

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

Algebra II

Imaginary Roots: √-1 = i
Standard Form: a + bi

Step-by-step explanation:

Step 1: Define

-4x² - 4x - 9 = 0

a = -4

b = -4

c = -9

Step 2: Find roots

Substitute: $x=\frac{4\pm\sqrt{(-4)^2-4(-4)(-9)} }{2(-4)}$
Exponents: $x=\frac{4\pm\sqrt{16-4(-4)(-9)} }{2(-4)}$
Multiply: $x=\frac{4\pm\sqrt{16-144} }{-8}$
Subtract: $x=\frac{4\pm\sqrt{-128} }{-8}$
Factor: $x=\frac{4\pm \sqrt{-1} \cdot \sqrt{128} }{-8}$
Simplify: $x=\frac{4\pm 8i\sqrt{2} }{-8}$
Factor: $x=\frac{4(1\pm 2i\sqrt{2}) }{-8}$
Divide: $x=\frac{1\pm 2i\sqrt{2}}{-2}$
Expand: $x=\frac{-1}{2} \pm \frac{-2i\sqrt{2} }{2}$
Simplify: $x=\frac{-1}{2} \pm -i\sqrt{2}$
Evaluate: $x=-0.5 \pm -i\sqrt{2}$

6 0

3 years ago

What is the rate of change of the function represented by the table

bazaltina [42]

The rate of change is gonna be 0

5 0

3 years ago

Read 2 more answers

Tỷ lệ người dân nghiện thuốc lá ở một vùng là 30%. Biết rằng tỷ lệngười bị viêm họng trong số những người nghiện thuốc lá là 60%

Alexxx [7]

Answer:

ask in English then I can help

7 0

3 years ago

8+9=

Bumek [7]

Answer:

Step-by-step explanation:

7 0

2 years ago