3 years ago

Simplify as far as possible. 2√125−5√5

Mathematics

2 answers:

sveticcg [70]3 years ago

8 0

Answer:

Step-by-step explanation:

Simplify (-10- square root of 125)/5. −10−√1255 - 10 - 125 5. Simplify the numerator.

Svetach [21]3 years ago

5 0

Answer:

50−5√5

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago

Using the quadratic formula to solve 4x2 – 3x + 9 = 2x + 1, what are the values of x?

yaroslaw [1]

Answer:

The value of x is:

$x=\dfrac{5\pm \sqrt{103}i}{8}$

Step-by-step explanation:

we have to use the quadratic formula to solve for x.

The equation is given as:

$4x^2-3x+9=2x+1$

which could also be written as:

$4x^2-3x+9-2x-1=0\\\\4x^2-3x-2x+9-1=0\\\\\\4x^2-5x+8=0$

The quadratic formula for the quadratic equation of the type:

$ax^2+bx+c=0$ is given as:

$x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}$

Here we have:

a=4, b=-5 and c=8.

Hence, by the quadratic formula we have:

$x=\dfrac{-(-5)\pm \sqrt{(-5)^2-4\times 8\times 4}}{2\times 4}\\\\x=\dfrac{5\pm \sqrt{25-128}}{8}\\\\\\x=\dfrac{5\pm \sqrt{103}i}{8}$

Hence, the value of x is:

$x=\dfrac{5\pm \sqrt{103}i}{8}$

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3 years ago

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A company has two manufacturing plants with daily production levels of 5x+11 items and 2x-3 items, respectively. The first plan

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Answer:

alr 5x+11 and 2x-3

5x+11=16x

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Step-by-step explanation:

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3 years ago

David can run at a consistent rate of 8.2 miles per hour. If he has 3 and a half hours to

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Answer:

David can run 28.7 miles in 3.5 hours.

Step-by-step explanation:

8.2mph × 3.5hours = 28.7miles

<em>good luck, i hope this helps :)</em>

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3 years ago

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7a^2/9b^4 simplify the fraction

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$7* \dfrac{a^2}{9}b^4$

$\dfrac{7a^2b^4}{9}$

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3 years ago