2 years ago

(Please help!!!)

Mathematics

1 answer:

Misha Larkins [42]2 years ago

4 0

The correct answer is D. 12x^2-9x

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The speed (v) of a gear varies inversely as the number of teeth (t). If a gear that has 48 teeth makes 20 revolutions per minute

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Step-by-step explanation:

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3 years ago

A triangle with sides of lengths 9, 22, and 24 is a right triangle

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Step-by-step explanation:

we know that

if the triangle is a right triangle

then

the triangle must satisfy the Pythagoras Theorem

$c^{2}=a^{2}+b^{2}$

we have

$c=24\ units$

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3 years ago

7 cards are drawn from a standard deck of 52 playing cards. How many different 7-card hands are possible if the drawing is done

Vladimir [108]

Answer:

The number of different 7 card hands possibility is 133784560

Step-by-step explanation:

The computation of the number of different 7 card hands possibility is shown below:

Here we use the combination as the orders of choosing it is not significant

So,

The number of the different hands possible would be

= $^{52}C_7$

= 52! ÷ (7! × (52 - 7)!)

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Hence, the number of different 7 card hands possibility is 133784560

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