2 years ago

Which of the following is equivalent to the expression (3ab)(-5ab)?

Mathematics

1 answer:

Scilla [17]2 years ago

6 0

$-15a^{2}b^{2}$

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How many 4 card hands that contain exactly 3 aces and 1 queen can be chosen from a 52 card deck?

sesenic [268]

There are 16 possible hands.

Choosing 3 aces from 4 possible is expressed by:
$_4C_3=\frac{4!}{3!1!} = 4$

Choosing 1 queen from 4 possible is expressed by:
$_4C_1=\frac{4!}{1!3!}=4$

This gives us 4*4 = 16 possible hands.

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2 years ago

5x-6 is quadratic equation

MArishka [77]

I, sorry but that problem does not make any sense how do 5x-6 tell me?

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What should we multiply the top equation by in order for both equations to have like coefficients?

ASHA 777 [7]

Answer:

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Step-by-step explanation:

If we multiply 2x-6y=26 by 2, we get 4x-12y=52 and the x's cancel out, making it easier to solve for y, using the elimination process.

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3 years ago

Solve 2x>7 please thanks

Montano1993 [528]

Answer:

x > $\frac{7}{2}$

Step-by-step explanation:

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x > $\frac{7}{2}$

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2 years ago

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