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2 years ago

I need help with math please help me!

Mathematics

1 answer:

VladimirAG [237]2 years ago

7 0

Answer:

9.55 cm

Step-by-step explanation:

The circumference is also called the perimeter, which is the length of the outline of any shape.

So,

$Perimeter = \pi *diameter\\30 cm = \pi * d\\\\d = \frac{30}{\pi} cm\\\\d=9.54929658551\:cm\\d=9.55\:cm$

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27 (x2+8x+16) / 3 (x2+6x+8) simplify

Karolina [17]

Answer:

9x4+126x3+648x2+1440x+1152

Step by step:

27(x^2+8x+16) / 3 (x^2+6x+8)

(27(x^2+8x+16) / 3) (x^2+6x+8)

(27(x^2+8x+16) / 3) (x^2) +(27(x2+8x+16) / 3) (6x)+(27(x2+8x+16)/3) (8)

9x4+72x^3+144x^2+54x^3+432x^2+864x+72x^2+576x+1152

9x4+126x3+648x2+1440x+1152

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3 years ago

Is it more difficult to run up a ramp with a slope of 1/5 or a ramp with a slope of 5? Explain.

VARVARA [1.3K]

It would be more difficult to run up a slope of 5 because it would be steeper. with a 1/5 slope you would have a rise over run but with a slope of 5 it would just be all rise

6 0

3 years ago

Read 2 more answers

A spyware is trying to break into a system by guessing its password. It does not give up until it tries 1 million different pass

Anettt [7]

Answer:

$Probability = 0.006033$

Step-by-step explanation:

Given

$Tries = 1000000$

Required

Determine the probability of 6 different lower case letters (Question continuation)

There are 26 lower case letters.

The first can be any of letters 26

The second can be any of letters 26 - 1

The third can be any of letters 26 - 2

The fourth can be any of letters 26 - 3

The fifth can be any of letters 26 - 4

The sixth can be any of letters 26 - 5

Number of selection is:

$Selection = 26 * (26 - 1) * (26 - 2) * (26 - 3) * (26 - 4) * (26 - 5)$

$Selection = 26 * 25 * 24 * 23 * 22 * 21$

$Selection = 165765600$

The probability is:

$Probability = \frac{Tries}{Selection}$

$Probability = \frac{1000000}{165765600}$

$Probability = 0.00603261472$

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2 years ago

How do you write the algebraic notation when the scale factor is 1/2?

PIT_PIT [208]

Answer:

(x,y) = (.5x,5y)

Step-by-step explanation:

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2 years ago

Eight less than four times a number is the same as 13 more than the number. What is the number?

Bas_tet [7]

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4n - n = 13 + 8
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6 0

3 years ago

I need help with math please help me!​

I need help with math please help me!