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3 years ago

I get pretty confused and I have a huge exam next week please help.

Mathematics

1 answer:

Alex Ar [27]3 years ago

7 0

From the angle bisector theorem, we know
$\frac{9}{x}=\frac{21}{14}$
$\rightarrow9*14=21x$
$\rightarrow 21x=126$
$\rightarrow x=6$

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Step-by-step explanation:

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3 years ago

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scoundrel [369]

Answer:

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Step-by-step explanation:

So first you need to subtract 668 from both sides.

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3 years ago

An athlete knows that when she jogs along her neighborhood greenway, she can complete the route in 10 minutes. It takes 20 minu

IgorLugansk [536]

Answer:

10 miles per hour.

Step-by-step explanation:

Let x represent athlete's walking speed.

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Since athlete is covering same distance while walking and jogging, so we can equate both expressions as:

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Cross multiply:

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$3x=15$

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3 years ago

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notka56 [123]

Answer:

y = 40 / x^1/3

Step-by-step explanation:

Given that :

y α x^1/3

y = k * 1 / x^1/3

y = k / x^1/3

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8 = k / 125^1/3

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8 = k / 5

8 * 5 = k ; k = 40

Hence, expression becomes :

y = 40 / x^1/3

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3 years ago

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Tems11 [23]

Answer:

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3 years ago