4 years ago

Simplify the expression below. (-3x^2 +2x -4) (4x^2 +5x -9)?

Mathematics

1 answer:

Veronika [31]4 years ago

6 0

The answer is X^2+7x-13

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Solve for x. -3x + 2c = -3

Andrei [34K]

Answer:

x = 1 + 2c/3

Step-by-step explanation:

Move all terms that don't contain x to the right side and solve.

Hoped this helped!

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3 years ago

Thor’s hammer can cover 4.95 km in a second. How many kilometers will it cover in 4.95 seconds

valina [46]

Answer:

24.5025

Step-by-step explanation:

4.95 x 4.95=24.5025

Hope I helped!

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3 years ago

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What is the equation of the line y = 1/2x - 4 y = 2x - 4 y = 2x + 2 y = 1/2x + 2

Aliun [14]

it's y= 1/2x + 2. The Y-intercept is 2 since it is (0,2)

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3 years ago

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54. Find <img src="https://tex.z-dn.net/?f=y%5E%7B%5Cprime%7D" id="TexFormula1" title="y^{\prime}" alt="y^{\prime}" align="absmi

Stella [2.4K]

Step-by-step explanation:

Take the natural log of both sides:

$ln ({x}^{y} ) = ln ({y}^{x} )$

Logarithm rules allow you to bring down the exponents:

$yln(x) = xln(y)$

Now differentiate. We will have to implicitly differentiate 'y' since it is a function of 'x'. Both sides require the product rule:

$\frac{dy}{dx} ln(x) + \frac{y}{x} = ln(y) + \frac{x}{y} \frac{dy}{dx}$

Isolate the terms that have y' since that is what we want:

$\frac{dy}{dx} ln(x) - \frac{x}{y} \frac{dy}{dx}= ln(y) - \frac{y}{x}$

Factor out y' to get:

$\frac{dy}{dx}( ln(x) - \frac{x}{y})= ln(y) - \frac{y}{x}$

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2 years ago

two children want to race around the city block. The length of the block is 80 yards. The width of the block is 60 yards. Which

Len [333]

Sounds like you're finding the perimeter of the block which means you'll need to use yards

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3 years ago

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