3 years ago

Look at the image below

Mathematics

1 answer:

Alexandra [31]3 years ago

6 0

that's what I got, you can confirm if it's correct or not... I'm not sure

have a nice dayʘ‿ʘ

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A rectangular field has an area of 162 m2.

Fed [463]

Answer:Length: 27m

Step-by-step explanation:

the formula of area of rectangle is : width*length
so we just replace the values in the formula
162=6*Length
Length=162/6
Length=27m

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3 years ago

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A container in the shape of a cone has a height of 13 centimeters and a diameter of 8 centimeters. Find the volume of the contai

sp2606 [1]

if its diameter is 8 cm, then its radius is half that, or 4 cm.

$\bf \textit{volume of a cone}\\\\ V=\cfrac{\pi r^2 h}{3}~~ \begin{cases} r=radius\\ h=height\\ \cline{1-1} r=4\\ h=13 \end{cases}\implies V=\cfrac{\pi (4)^2(13)}{2} \\\\\\ V=104\pi \implies \stackrel{\pi =3.14}{V=326.7}$

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Rama09 [41]

Answer:

Step-by-step explanation:

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3 years ago

6 cm

Svetach [21]

Answer:

3 cm base 4 cm height

Step-by-step explanation:

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3 years ago

Given IQ scores are approximately normally distributed with a mean of 100 and standard deviation of 15, the proportion of people

Nataliya [291]

Answer: 0.0228 .

Step-by-step explanation:

Given, IQ scores are approximately normally distributed with a mean of 100 and standard deviation of 15

Let X denotes the IQ score.

Then, the proportion of people with IQs above 130 is

$P(X>130)=P(\dfrac{X-mean}{ standard\ deviation}>\dfrac{130-100}{15})\\\\= P(Z>2)\ \ \ \[Z=\dfrac{X-mean}{ standard\ deviation}]$

$=1-P(Zz)=1-P(Z$

Hence, the proportion of people with IQs above 130 is 0.0228 .

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3 years ago