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Tamiku [17]
3 years ago
15

The length of rectungular field is 50m and its breadth is 40m. calculate its area in acre and hectare​

Mathematics
2 answers:
irinina [24]3 years ago
7 0

Answer:

90

Step-by-step explanation:

40+50 ......................

Pavlova-9 [17]3 years ago
6 0

Answer:

0.4942108acre,0.2 hectare

Step-by-step explanation:

Given

length of rectungular field =50m

its breadth = 40m.

Solution

Area=length×breadth

=50×40

=2000m^2

1)1 square metre =0.000247 acre

So2000m^2=0.4942108acre

2)2000m^2=0.2 hectare

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drek231 [11]

Answer:

The pvalue of 0.0113 < 0.05 means that there is sufficient evidence to conclude that the mean time to find another position is less than 28 weeks at the 5% level of significance

Step-by-step explanation:

The null hypothesis is:

H_{0} = 28

The alternate hypotesis is:

H_{1} < 28

The test statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

A recent survey of 50 executives who were laid off during a recent recession revealed it took a mean of 26 weeks for them to find another position.

This means that n = 50, X = 26

Assume the population standard deviation is 6.2 weeks.

This means that \sigma = 6.2

Does the data provide sufficient evidence to conclude that the mean time to find another position is less than 28 weeks at the 5% level of significance

We have to find the pvalue of Z, looking at the z-table, when \mu = 28. It if is lower than 0.05, it provides evidence.

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{26 - 28}{\frac{6.2}{\sqrt{50}}}

z = -2.28

z = -2.28 has a pvalue of 0.0113 < 0.05.

The pvalue of 0.0113 < 0.05 means that there is sufficient evidence to conclude that the mean time to find another position is less than 28 weeks at the 5% level of significance

5 0
3 years ago
40:48
NikAS [45]

Answer:

It might be 6 not entirely sure

Step-by-step explanation:

3 0
3 years ago
What is the 150th term in this sequence? 17, 162, 16, 15....​
velikii [3]

Answer:

try Math

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Step-by-step explanation:

3 0
3 years ago
Which equation matches the grpah? A.y = - 1/2x B.y = 1/2x C. y = 2x D. y = -2x
My name is Ann [436]

Answer: it is c all u have to do seach up desmos in put in the graph promblem is will show u the answer

Step-by-step explanation:

3 0
3 years ago
What is the simplified form of the following expression? 7(^3 square root 2x) - 3 (^3 square root 16x) -3 (^3 square root 8x)
Pachacha [2.7K]

Answer:

The third option listed: \sqrt[3]{2x} -6\sqrt[3]{x}\\

Step-by-step explanation:

We start by writing all the numerical factors inside the qubic roots in factor form (and if possible with exponent 3 so as to easily identify what can be extracted from the root):

7\sqrt[3]{2x}  -3\sqrt[3]{16x} -3\sqrt[3]{8x} =\\=7\sqrt[3]{2x}  -3\sqrt[3]{2^32x} -3\sqrt[3]{2^3x} =\\=7\sqrt[3]{2x}  -3*2\sqrt[3]{2x} -3*2\sqrt[3]{x}=\\=7\sqrt[3]{2x}  -6\sqrt[3]{2x} -6\sqrt[3]{x}

And now we combine all like terms (notice that the only two terms we can combine are the first two, which contain the exact same radical form:

7\sqrt[3]{2x}  -6\sqrt[3]{2x} -6\sqrt[3]{x}=\\=\sqrt[3]{2x} -6\sqrt[3]{x}

Therefore this is the simplified radical expression: \sqrt[3]{2x} -6\sqrt[3]{x}\\

5 0
3 years ago
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