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liberstina [14]
3 years ago
7

What is the name of this solid figure?

Mathematics
1 answer:
ohaa [14]3 years ago
4 0

Answer:

what solid figure do u have a picture lol?

Step-by-step explanation:

You might be interested in
In a study to estimate the proportion of residents in a certain city and its suburbs who favor the construction of a nuclear pow
leva [86]

Answer:

The test statistic z = z = 2.368 >1.97 (at 5% level of significance)

we rejected null hypothesis at 5% level of significance

There is  significant difference between the proportions of urban and suburban residents who favor construction of the nuclear plant.

Step-by-step explanation:

Given data In a study to estimate the proportion of residents in a certain city and its suburbs who favor the construction of a nuclear power plant, it is found that 63 of 100 urban residents

The first sample proportion  p₁ = \frac{63}{100} =0.63

The construction of  59 of 125 suburban residents are in favor

The second  sample proportion p_{2} = \frac{59}{125}  = 0.472

Given the sample sizes are n₁ = 100 and n₂ =125

<u>Null hypothesis(H₀):</u>-there is no significant difference between the proportions of urban and suburban residents who favor construction of the nuclear plant.

<u>Alternative hypothesis: H₁</u>

There is  significant difference between the proportions of urban and suburban residents who favor construction of the nuclear plant.

<u>Level of significance</u>:-

∝ =0.05

Tabulated value z=1.96

<u>Test statistic</u>

<u></u>z = \frac{p_{1}-p_{2}  }{\sqrt{pq(\frac{1}{n_{1} } +\frac{1}{n_{2} } )} }<u></u>

where p = \frac{n_{1}p_{1} +n_{2}p_{2}  }{n_{1} +n_{2} }         q = 1- p

Substitute all values in above equation

p = \frac{100X0.63+0.472X125}{100+125} = 0.542

q = 1-p = 1 - 0.542 = 0.458

The test statistic

z = \frac{0.63-0.472}{\sqrt{0.542X0.458}(\frac{1}{100}+\frac{1}{125}   )}

on simplification , we get

z = 2.368 >1.97 (at 5% level of significance)

we rejected null hypothesis at 5% level of significance

<u>Conclusion</u>:-

There is  significant difference between the proportions of urban and suburban residents who favor construction of the nuclear plant.

8 0
3 years ago
What percent increase is 1/3 to 1/6
r-ruslan [8.4K]

Answer:

50% increase

Step-by-step explanation:

half of 6 is 3 thus 50%, and vise versa.

4 0
2 years ago
To find a reciprocal of a fraction, switch the numerator and denominator.
Aleks [24]
The reciprocal of -1/3 is -3/1
and the reciprocal of 4/1 is 1/4
6 0
3 years ago
Please help me find the function to y
Fed [463]

Answer:

(-1, -7) (0, -1) (1, 5) (5, 29)

Step-by-step explanation:

okay so the equation is y = 6x - 1

all you have to do is plug in all the x values to get the y

y = 6(-1) - 1

y = - 6 - 1

y = -7

y = 6(0) - 1

y = 0 - 1

y = -1

y = 6(1) - 1

y = 6 - 1

y = 5

y = 6(5) - 1

y = 30 - 1

y = 29

8 0
3 years ago
6 - 3x = -6 PLEASE ANSWER FAST I NEED HELP!!!
REY [17]
4 is the answer hehehe
7 0
2 years ago
Read 2 more answers
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