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3 years ago

7b - 3 (b - 1) in simplist form

Mathematics

2 answers:

Pani-rosa [81]3 years ago

8 0

7b - 3 (b - 1)
7b - 3b + 3
= 4b + 3

podryga [215]3 years ago

3 0

Answer:

Use math-way

Step-by-step explanation:

Type in the equation and pick simplify

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Answer:

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3 years ago

F(x)=x^3-x^2-10x-8 ; x+1

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Answer:

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Step-by-step explanation:

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3 years ago

Find a homogeneous linear differential equation with constant coefficients whose general solution is given by

frez [133]

Answer:

$y" + 2y' + 2y = 0$

Step-by-step explanation:

Given

$y=c_1e^{-x}cosx+c_2e^{-x}sinx$

Required

Determine a homogeneous linear differential equation

Rewrite the expression as:

$y=c_1e^{\alpha x}cos(\beta x)+c_2e^{\alpha x}sin(\beta x)$

Where

$\alpha = -1$ and $\beta = 1$

For a homogeneous linear differential equation, the repeated value m is given as:

$m = \alpha \± \beta i$

Substitute values for $\alpha$ and $\beta$

$m = -1 \± 1*i$

$m = -1 \± i$

Add 1 to both sides

$m +1= 1 -1 \± i$

$m +1= \± i$

Square both sides

$(m +1)^2= (\± i)^2$

$m^2 + m + m + 1 = i^2$

$m^2 + 2m + 1 = i^2$

In complex numbers:

$i^2 = -1$

So, the expression becomes:

$m^2 + 2m + 1 = -1$

Add 1 to both sides

$m^2 + 2m + 1 +1= -1+1$

$m^2 + 2m + 2= 0$

This corresponds to the homogeneous linear differential equation

$y" + 2y' + 2y = 0$

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3 years ago

What is the volume of an 8cm cube

Sloan [31]

Answer:

V = 512 cm³

Step-by-step explanation:

Use the formula V = s³ to find the volume of the cube

V = 8³

V = 512 cm³

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3 years ago

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Digiron [165]

Answer:

The car would have to sell for $20,000

Step-by-step explanation:

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3 years ago