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Tema [17]
1 year ago
10

Find the sum of the cubes of first 15 natural numbers.

Mathematics
1 answer:
balu736 [363]1 year ago
8 0
<h3>Given:</h3>
  • 15
<h3>To find:</h3>

The sum of the cubes of first <u>15</u> natural numbers.

<h3>Solution:</h3>

( \frac{(15 \times 16)}{2}  {)}^{2}

= (15 \times 8 {)}^{2}

<u>=14400</u>

<u>Hence</u><u>,</u><u> </u><u>t</u><u>he sum of the cubes of first 15 natural numbers</u><u> </u><u>is</u><u> </u><u>1</u><u>4</u><u>4</u><u>0</u><u>0</u>

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Rom4ik [11]

Answer:

1. 4/9

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5. 3 an4

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8. -1 1/2

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10. √9

Good luck :)

Step-by-step explanation:

6 0
3 years ago
According to the University of Nevada Center for Logistics Management, 6% of all merchandise sold in the United States gets retu
KatRina [158]

Answer:  0.1

Step-by-step explanation:

Given :  A Houston department store sampled 80 items sold in January and found that 8 of the items were returned.

In other words, sample size : <em>n</em>=1040

Number of items returned : <em>x</em>= 8

Let <em>p</em> be the proportion of items returned for the population of sales transactions at the Houston store.

As per sample , the sample proportion of items returned for the population of sales transactions at the Houston store is :

\hat{p}=\dfrac{x}{n}=\dfrac{8}{80}=0.1

As we know that , <em>the sample proportion is the best estimate of the population proportion.</em>

Therefore,a point estimate of the proportion of items returned for the population of sales transactions at the Houston store is 0.1.

8 0
3 years ago
Help me please, ps u don't have to answers all of them
Leni [432]
A) To find the surface area of a cube, you have to use the formula 6•a^2
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B) To find the surface area for just five sides, you'll be doing the same, except instead of 6 it'll be five.
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you get 90.25
Then you multiply 90.5 by 5
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5 0
3 years ago
Select the graph that would represent the best presentation of the solution set.<br> \absP &gt; 3
m_a_m_a [10]

Answer:

Step-by-step explanation:

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4 0
2 years ago
Christine's gross monthly salary at her job
jonny [76]

Answer:

  $2587.87 per month

Step-by-step explanation:

The listed deductions are ...

  • 25% withheld for federal income tax
  • 9.3% withheld for California state income tax
  • 6.2% withheld for Social Security tax
  • 1.45% withheld for Medicare Tax
  • 0.9% withheld for SDI- Disability Insurance
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The percentages have a total of ...

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So, Christine's take-home pay is ...

  $5250(1 -0.4785) -150 = $2587.87 . . . per month

7 0
3 years ago
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