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3 years ago

Solve the problem.

Mathematics

1 answer:

Lorico [155]3 years ago

5 0

Answer:

Step-by-step explanation:

You must use a combination:

$_nC_k=\dfrac{n!}{k!(n-k)!}$

We have <em>n = 16</em>, <em>k = 3</em>.

Substitute:

$_{16}C_3=\dfrac{16!}{3!(16-3)!}=\dfrac{13!\cdot14\cdot15\cdot16}{2\cdot3\cdot13!}\qquad\text{cancel}\ 13!\\\\=\dfrac{14\cdot15\cdot16}{2\cdot3}=\dfrac{7\cdot5\cdot16}{1}=560$

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Whitepunk [10]

400 pounds every year
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2 years ago

. A recent report in a women magazine stated that the average age for women to marry in the United States is now 25 years of age

Setler [38]

Answer: 0.0136

Step-by-step explanation:

Given : Mean : $\mu=25$

Standard deviation : $\sigma=3.2$

Sample size : $n=50$

The formula to calculate the z-score :-

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2 years ago

Solve the system using elimination.

Molodets [167]

Answer:

(-1, 3)

Step-by-step explanation:

x - 5y = -16 [Equation 1]

-x + 3y = 10 [Equation 2]

<u>Adding both equations</u>

x - x - 5y + 3y = -16 + 10
-2y = -6
y = 3

x - 5(3) = -16
x - 15 = -16
x = -1

<u>Solution</u> : (-1, 3)

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1 year ago

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What number is between 27 and 45

Aloiza [94]

It could be 28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43, or 44.

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2 years ago

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How to solve -8x=144

sp2606 [1]

Answer:

x=−18

Step-by-step explanation:

Let's solve your equation step-by-step.

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Step 1: Divide both sides by -8.

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2 years ago

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