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Fofino [41]
3 years ago
13

Solve your equation using trail and improvement. A number plus ten times its square root is is equal to one thousand

Mathematics
1 answer:
Alex3 years ago
5 0

Answer:

x \approx 729

Step-by-step explanation:

Given

Let the number be x

So:

x + 10\sqrt x = 1000

Required

Using trial and improvement, find x

This implies that we keep guessing the values of x until we get a value that match the equation.

Let

x = 625

So, we have:

x + 10\sqrt x = 1000

625 + 10 *\sqrt{625}

Take the square root of 625

625 + 10 *\sqrt{625} = 625 + 10 *25

625 + 10 *\sqrt{625} = 625 + 250

625 + 10 *\sqrt{625} = 875

Let

x = 729

So, we have:

x + 10\sqrt x = 1000

729 + 10 * \sqrt{729}

Take the square root of 729

729 + 10 * \sqrt{729} = 729 + 10 * 27

729 + 10 * \sqrt{729} = 729 + 270

729 + 10 * \sqrt{729} = 999

At this point, we can conclude that x is approximately 729 because

999 \approx 1000

So:

x \approx 729

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G(x) = 6 - 2x<br> Find g(-4).
sergeinik [125]

Answer:

\huge \boxed{g( - 4) = 14}

Step-by-step explanation:

g(x) = 6 - 2x

To find g(-4) , substitute the value of x that's - 4 into g(x). That is for every x in g(x) , replace it with - 4

We have

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We have the final answer as

<h3>g(-4) = 14</h3>

Hope this helps you

5 0
3 years ago
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Step-by-step explanation:

6 0
3 years ago
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Ludmilka [50]

Answer:

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Step-by-step explanation:

5x+7y=10

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<em>Sana</em><em> </em><em>maka</em><em>tulong</em><em> </em>

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