3 years ago

What is the surface area of a rectangle if the length is 4 1/5 the width is 9 1/2 and the height is 3 4/5?

Mathematics

1 answer:

ipn [44]3 years ago

3 0

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Find the exact area of the sector of the circle with the following radius and central angle

Lostsunrise [7]

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There are 360 degrees in a crcle so this sectors area i (30/360) *36pi

= 3 pi

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3 years ago

What is 3/49 simplified?

lys-0071 [83]

It is already in its lowest form :P Unless you wan the decimal which is 0.061224489 ish

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3 years ago

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Suppose your SAT score is 1180. You look up the average SAT scores for

Stella [2.4K]

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1190

Step-by-step explanation:

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3 years ago

Over the past several years, the proportion of one-person households has been increasing. The Census Bureau would like to test t

Ganezh [65]

Answer: z =2.39

Step-by-step explanation:

Given :

$H_0: p \leq0.23\\\\ H_a: p > 0.23$

A random sample of 136 households found that 43 consisted of one person.

i.e. Sample size : n= 136

Sample proportion : $\hat{p}=\dfrac{43}{136}=0.316176470588\approx0.3162$

Test statistic for proportion :-

$z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}$

$\Rightarrow z=\dfrac{0.3162-0.23}{\sqrt{\dfrac{0.23(1-0.23)}{136}}}\\\\\Rightarrow\ z=\dfrac{0.0862}{\sqrt{0.00130220588235}}\\\\\Rightarrow\ z=\dfrac{0.0862}{0.0360860898734}\\\\=2.38873206552\approx2.39$

Hence, the value of the test statistic: z =2.39

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3 years ago

Estimate to the nearets integer 15.6

Maksim231197 [3]

Integers are whole numbers.....so 15.6 rounded to the nearest whole number is 16.

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4 years ago