2 years ago

Answer my question please

Mathematics

1 answer:

IgorC [24]2 years ago

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Simplify the following expression completely, where x is greater than or equal too 0.

Dennis_Churaev [7]

First you want the numbers under the radical to be the same so you can combine like terms.

$x \sqrt{5xy^4} =x \sqrt{5x*^4y} = xy^2 \sqrt{5x}$
$\sqrt{405x^3y^4} = \sqrt{5x*81x^2y^4} =9xy^2 \sqrt{5x}$
$\sqrt{80x^3y^4} = \sqrt{5x*16x^2y^4} = 4xy^2 \sqrt{5x}$

Now add together to get $14xy^2 \sqrt{5x}$

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3 years ago

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What is 9/25 as a decimal terminating or repeating decimal

d1i1m1o1n [39]

1/25=0.04

9/25=9*0.04=0.36

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3 years ago

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I need help with this

Ulleksa [173]

No, tahts the answer

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3 years ago

High School sold tickets to the winter dance for $3.50 in advanced and $5.00 at the door. If 115 people attended the dance and H

klemol [59]

Answer: 3.5a+5b=470 and a+b=115

Step-by-step explanation:

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2 years ago

Find the equation of a line that is perpendicular line to y = 10x - 45 and goes through (1, 1).

Airida [17]

The line $y = 10x - 45$ is already written in the $y = mx+q$ form. This means that $m$ is the slope. If two lines are perpendicular, their slopes are the anti-inverse of each other, i.e. their product is -1.

So, our perpendicular line has a slope of $-\frac{1}{10}$

Finally, we want a line passing through (1,1) with slope $-\frac{1}{10}$ :

$y-1 = -\dfrac{1}{10}(x-1) \iff y = -\dfrac{x}{10} + \dfrac{1}{10}+1 = -\dfrac{x}{10} + \dfrac{11}{10}$

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3 years ago