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3 years ago

Factoring Perfect Cubes: What is 250x^4 + 128x factored completely?

1 answer:

vladimir2022 [97]3 years ago

6 0

250x⁴ + 128x
2x(125x³) + 2x(64)
2x(125x³ + 64)
2x(125x³ + 100x² - 100x² + 80x - 80x - 64)
2x(125x³ + 100x² + 80x - 100x² - 80x - 64)
2x(5x(25x²) + 5x(20x) + 5x(16) - 4(25x²) - 4(20x) - 4(16))
2x(5x(25x² + 20x + 16) - 4(25x² + 20x + 16))
2x(5x - 4)(25x² + 20x + 16)

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Which number is a solution for the inequality below?

nasty-shy [4]

Answer:

D 90

Step-by-step explanation:

x/4 ≥ 20

Multiply each side by 4

4*x/4 ≥ 20*4

x ≥ 80

The only number greater than or equal to 80 is 90

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3 years ago

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How do I find the perimeter of a figure to the nearest hundreth

aev [14]

Answer:

Step-by-step explanation:

add the two sides which are 6 and 6, then find the circumference of one of the circles and thats it, the reason why you only need one is because both of those circles are halfs, so they make one circle up, so its 6+6, then the circumference is 12.5667 so its 12+12.5667 which is 24.5667 which rounds up to 25.

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3 years ago

8x – 65 = - x2<br> [pease help me

Leya [2.2K]

Answer: x=5 or x=−13

Step-by-step explanation:

8x−65=−x2

8x−65−(−x2)=−x2−(−x2)

x2+8x−65=0

(x−5)(x+13)=0

x−5=0 or x+13=0

x=5 or x=−13

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3 years ago

27. Find a polar equation of the conic with focus at the pole that has the given eccentricity and equation of directrix.

ololo11 [35]

The polar equation will be $r=\dfrac{4}{1+cos\theta}$

<h3> What is the polar equation?</h3>

A polar equation is any equation that expresses the relationship between r and theta, where r is the distance between the pole (origin) and a point on a curve, and theta is the counterclockwise angle formed by a point on a curve, the pole, and the positive x-axis.

From the equation, we are told that

The Eccentricity: e = 1

The Directrix is y = 4

Generally, the polar equation for e = 1 and y = + c is mathematically represented as

$r =\dfrac{e\times c}{1+ecos\theta}$

$r =\dfrac{1\times 4}{1+1\times cos\theta}$

$r=\dfrac{4}{1+cos\theta}$

Therefore the polar equation will be $r=\dfrac{4}{1+cos\theta}$

To know more about the polar equation follow

brainly.com/question/9363127

#SPJ1

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2 years ago

What is the coefficient of b in the expression b + 10? Explain.

hodyreva [135]

Answer:

Step-by-step explanation:

as b have no number given it means. its coefficent is 1

8 0

3 years ago