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Marysya12 [62]
3 years ago
8

What os 4% as a decimal

Mathematics
2 answers:
zhenek [66]3 years ago
7 0

Answer:

0.04

hope this helps :D pls mark brainlest

OLga [1]3 years ago
3 0

Answer:

0.04

Step-by-step explanation:

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Y=-12

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11x=0

Step-by-step explanation:

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What is 65.97 rounded to the nearest square inch
ss7ja [257]

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66

Step-by-step explanation:

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3 years ago
In melanie's styling salon, the time to complete a simple haircut is normally distributed with a mean of 25 minutes and a standa
vovikov84 [41]
They will require between 18.42 and 31.58 minutes.

We want the middle 90%.  The two probability values associated with this would be 0.95 and 0.05; this would leave 5% below and 5% above, giving us the middle 90%.

Using a z-table (http://www.z-table.com) we see that the z-score associated with an area to the left of 0.05 is between -1.64 and -1.65; since it is equally distant from both we will use -1.645.

The z-score associated with an area of the left of 0.95 is between 1.64 and 1.65; since it is equally distant from both we will use 1.645.

The formula for a z-score is

z = (X-μ)/σ
-1.645 = (X-25)/4

Multiplying by 4 on both sides,
-1.645(4) = X-25
-6.58 = X-25

Adding 25 to both sides,
-6.58+25 = X
18.42 = X

For the upper bound,
1.645 = (X-25)/4

Multiplying both sides by 4,
1.645(4) = X-25
6.58 = X-25

Adding 25 to both sides,
6.58+25 = X
31.58 = X

The times are between 18.42 and 31.58 minutes.
6 0
3 years ago
Calcule a área da região sombreada da figura abaixo.<br> 120°<br> 4 cm<br> B
masya89 [10]

Answer:

Area of segment = 9.8 cm² (Approx.)

Step-by-step explanation:

Given:

Angle θ = 120°

Radius of circle = 4 cm

Find:

Area of segment

Computation:

Area of segment = [θ/360][π][r]² - [1/2][r²][sinθ]

Area of segment = [120/360][3.14][4]² - [1/2][4²][sin120]

Area of segment = [0.333][3.14][16] - [0.5][16][0.866]

Area of segment = 16.7299 - 6.28

Area of segment = 9.8019

Area of segment = 9.8 cm² (Approx.)

8 0
3 years ago
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