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4 years ago

Evaluate C(44,21) use scientific notation, round to 3 decimal places as needed.

1 answer:

6 0

$C(44,21)=\dfrac{44!}{21!23!}=\dfrac{24\cdot25\cdot\ldots\cdot43\cdot44}{2\cdot3\cdot\ldots\cdot 20\cdot21}=2,012,616,400,080\\
\approx2.013\cdot10^{12}$

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3 years ago

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The polygons are similar, but not necessarily drawn to scale. Find the value of x.

alexandr402 [8]

If the shapes are similar, the correspondent sides are in proportion:

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Let's plug the values and solve for x:

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3 years ago

Simplify the expression <br> 6(151/2-3 3/2)=

alekssr [168]

Answer:

426

Step-by-step explanation:

6( $\frac{151}{2} - 3\frac{3}{2}$ )

= 453 - 6 * 4 $\frac{1}{2}$

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3 years ago

What is the missing reason in the proof?

uranmaximum [27]

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4 years ago

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1/3x² + x+5/3x² = 1/9<br><br>HAHAHAHA......

mr_godi [17]

Answer:

Now, 3x 2+x+5⩾0

This is because b² −4ac=1−4×5×3

=−59 (roots are imaginary)

3x²+x+5=(x−3)² =x²+9−6x and x−3⩾0

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∴ No solution.

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3 years ago

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