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3241004551 [841]
3 years ago
13

Can someone plz help me with this one problem plz!!!

Mathematics
1 answer:
kondor19780726 [428]3 years ago
8 0

Answer:

<h2><em><u>25 square inches </u></em></h2>

Step-by-step explanation:

<em><u>Given</u></em><em><u>, </u></em>

Parallel sides of the trapezium = 3in, 7in

Height of the trapezium = 5in

<em><u>Therefore</u></em><em><u>, </u></em>

Area of the trapezium

=  \frac{1}{2}  \times sum \: of \: parallel \: sides \times height

=  \frac{1}{2}  \times (7 + 3)in \times 5in

=  \frac{1}{2}  \times 10in \times 5in

= 5in × 5in

=  {25in}^{2}

<em><u>Hence</u></em><em><u>,</u></em>

<em><u>Area</u></em><em><u> </u></em><em><u>if</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>trapezium</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>25</u></em><em><u> </u></em><em><u>square</u></em><em><u> </u></em><em><u>inches</u></em><em><u> </u></em><em><u>(</u></em><em><u>Ans</u></em><em><u>)</u></em>

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If you subtract 16 from my number and multiply the difference by -7, the result is -154 What is my number
adell [148]

Answer:

16-x*(-7)=-154

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X=-24.29

Step-by-step explanation:

Let x represent "my number"

7 0
3 years ago
The following data were collected by counting the number of operating rooms in use atTampa general Hospital over a 20-day period
arlik [135]

Answer:

a)

Operating room x    1         2      3       4

P(x)                          0.15  0.25  0.4   0.2

b)

The graph of probability distribution is in attached image.

c)

All the probabilities lies in the range (0 to 1) and the probabilities add up to 1 so, the computed probability distribution is the valid probability distribution.

Step-by-step explanation:

Number of operating rooms   Days

1                                                  3

2                                                 5

3                                                 8

4                                                 4

a)

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Operating rooms x   frequency f  Relative frequency

1                                    3                    3/20=0.15

2                                   5                   5/20=0.25

3                                   8                   8/20=0.4

4                                   4                   4/20=0.2

So, using the relative frequency approach, a discrete probability distribution for number of operating rooms in use on any given day is

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P(x)                          0.15  0.25  0.4   0.2

b)

The graph of probability distribution is in attached image.

c)

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1. All probability must ranges from 0 to 1.

2. All probabilities must add up to 1.

We can see that all the probabilities lies in the range (0 to 1), so, condition 1 is satisfied.

For condition 2,

sum[p(x)]= 0.15+0.25+0.4+0.2=0.4+0.6=1.

As the probabilities add up to 1, so the condition 2 is also satisfied.

Thus, the computed probability distribution is the valid probability distribution.

7 0
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P:C
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Step-by-step explanation:

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