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2 years ago

I NEED HELP ON 1 PLEASEEE

Mathematics

2 answers:

Lostsunrise [7]2 years ago

6 0

Answer:

Step-by-step explanation:

SA of a cylinder formula:

A=2πrh+2πr^2

A=2π(3)(15)+2π(3)^2

A=339.29in^2

Hope that helps

avanturin [10]2 years ago

4 0

Answer:

Step-by-step explanation:

Hi there!

From the given figure;

Radius(r) = 3 inch

Height (h) = 15 inch

Now;

Total surface area (TSA) = 2πr(r+h)

TSA = 2*( $\frac{22}{7}$ )*3(3+15)

TSA = $\frac{132}{7}$ *18

TSA = 339.42in².

Therefore, the answer is option c (339.29in²).

Hope it helps!

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CaHeK987 [17]

Answer:

AC = 55°

Step-by-step explanation:

In this geometry, arcs AC and BD have the same measure. The sum of the parts of arc CD will total the measure of CD.

AC + AB + BD = CD

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2 years ago

How much is 13,200 feet in miles

Naddika [18.5K]

Answer:

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Step-by-step explanation:

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2 years ago

56 is 80 percent of what number

monitta

Let us assume the number to be = x
Then
(80/100) * x = 56
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7 0

2 years ago

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Suppose that an airline uses a seat width of 16.7 in. Assume men have hip breadths that are normally distributed with a mean of

murzikaleks [220]

Answer:

Step-by-step explanation:

Given that X, the hip width of men is N(14.2, 0.9)

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b) Here sample size = 126

Each person is independent of the other

the probability that these men have a mean hip breadth greater than 16.7

= $0.0028^{126}$ <0.00001

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2 years ago

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I need help understanding how to do the problem

notsponge [240]

So.. if you notice the picture below

is really just 3/4 of a cylinder, or, a full cylinder, and then you slice 1/4 off of it
notice the right-angle in your picture at the bottom, is cut at a right-angle, meaning, the cutout is 1/4 of the volume

so $\bf \textit{volume of a cylinder}\\\\
V=\pi r^2 h\qquad 
\begin{cases}
r=radius\\
h=height
\end{cases}\qquad \frac{3}{4}\textit{ of that}\implies \cfrac{3}{4}\cdot \pi r^2 h$

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2 years ago