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3 years ago

What is 5 + 2^3 divided by 4 - 2

Mathematics

2 answers:

V125BC [204]3 years ago

5 0

Answer:

Step-by-step explanation:

5+ $2^{3}$ /4-2

$2^{3}$ = 2 x 2 x 2 (12)

5+ 12 / 4-2

5 + 3 - 2

Mariana [72]3 years ago

3 0

Answer:

6.5 or 13/2

Step-by-step explanation:

$\frac{5 + {2}^3{} }{4 - 2}$

First find what 2^3 power is.

$\frac{5 + 8}{4 - 2}$

Then, just add the top and bottom

$\frac{13}{2}$

This in decimal form is 6.5

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Your teacher will grade your response for questions 21–23 to ensure you receive proper credit for your answer.

mario62 [17]

Answer:

(a) Arts take longer

(b) By 2/9 hours

Step-by-step explanation:

Given

Arts = four over nine hours

Maths = two over nine hours

Solving (a): Which takes longer?

First, represent both as fraction

$Arts = \frac{4}{9}\ hours$

$Maths = \frac{2}{9}\ hours$

Convert fraction to decimal

$Arts = \frac{4}{9}\ hours$

$Arts = 0.444\ hours$

$Maths = \frac{2}{9}\ hours$

$Maths = 0.222\ hours$

By comparison:

$0.444 > 0.222$

Hence, Arts take longer

Solving (b): How much longer?

To do this, we calculate the difference.

$Difference = Arts - Maths$

$Difference = \frac{4}{9} - \frac{2}{9}$

Take L.C.M

$Difference = \frac{4 - 2}{9}$

$Difference = \frac{2}{9}\ hours$

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Answer:

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Step-by-step explanation:

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A stick is broken into two pieces, at a uniformly random break point. Find the CDF and average of the length of the longer piece

Oksanka [162]

Answer:

P(L ≤ l) =P (1-l ≤ U ≤ l)= l- ( 1 - l ) = 2 l - 1

Step-by-step explanation:

let assume that stick has length 1.Random variable L that make length of a longer piece and random variable U that mark point .See that L < l means that

U≤ l and 1-U ≤l

P(L ≤ l) =P (1-l ≤ U ≤ l)= l- ( 1 - l ) = 2 l - 1

this means 1-l≤U≤l

so we have

if we have L [1/2,1]

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