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3 years ago

Help me pleaseeee asap

Mathematics

1 answer:

sdas [7]3 years ago

4 0

Answer:

5089.4cm³ (rounded to 1 d.p.)

Step-by-step explanation:

Volume of cylinder = $\pi$ × r² × h

Volume of cylinder = $\pi$ × 9² × 20

= 1620 $\pi$

= 5089.4cm³ (rounded to 1 d.p.)

You might be interested in

(-11+ √-4) + (4+ √-36)

mash [69]

Answer:

$-7 + 8i$

Step-by-step explanation:

$(-11 + \sqrt{-4}) + (4 + \sqrt{-36}) = (-11 + 2\sqrt{-1}) + (4 + 6\sqrt{-1})$

We know $\sqrt{-1}$ is a complex number and is defined by $i$

∴ $(-11 + \sqrt{-4}) + (4 + \sqrt{-36}) = (-11 + 2i) + (4 + 6i) = -7 + 8i$

4 0

3 years ago

HELPPPPPPPPPPPPPPPPPPPPFind m

uranmaximum [27]

Answer:

208

Step-by-step explanation:

112+40=152 And that's the rest of them is under 152 so they can't be it so the only option left is 208

I'm not a expert but I'm just trying to help if u need ask someone else to explain but that's the right answer

3 0

2 years ago

6.5 x 1/9 please help

hjlf

Answer:

13/18

Step-by-step explanation:

6.5 · 1/9 = 6 5/10 · 1/9
6 5/10 · 1/9 = 6 1/2 · 1/9
6 1/2 · 1/9 = 13/2 · 1/9
13/2 · 1/9 = 13/18

Therefore, 6.5 · 1/9 = 13/18.

7 0

2 years ago

A bookstore had 81 copies of a magazine. Yesterday the bookstore sold

olga2289 [7]

Answer:

The question is unclear, but if the book store sold 9 copies total, they sold 2 yesterday.

Step-by-step explanation:

I am not sure how many copies were sold in total but here is how you can solve it- Get the total amount of copies and subtract the number of copies sold in total. Then get the difference and subtract 7 from it. The difference is your answer.

7 0

3 years ago

How would you describe the shape of the normal distribution?

RUDIKE [14]

The shape of the normal distribution is bell shape and it is also symmetrical from the left and right sides about the origins (mean).

What is a normal distribution?

A normal distribution is a function on some random variables, which represent the set of all those random variables in a symmetrical bell shape about the mean value.

It shows that the probability of occurrence of some data which is distributed over a function is more at or around the mean.

It is also known as probability distribution curve.

The normal distribution has two parameters:

Mean

Standard deviation

What is the shape of the normal distribution?

The normal distribution curve is at it's peak at the mean value. This shows that the probability of occurrence of the data or value is more concentrated or distributed about the mean. It is also symmetric about the mean. As we more further from the mean, we see that the normal distribution curve gradually decreases showing that the probability of occurrence of the data or the values decreases. The shape that this curve forms is like a bell-shaped. So the shape of normal distribution is bell shape.

Hence, the shape of the normal distribution is bell shape and it is also symmetrical from the left and right sides about the origins (mean).

Know more about "normal distribution" here: brainly.com/question/15103234

#SPJ4

5 0

1 year ago