Cot =(2x/5 - pi /7) tìm tập xác định

Mathematics

1 answer:

pogonyaev3 years ago

5 0

Cot”-$’kdkkskixxjcjcjdi’$gZ#

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In a manufacturing process that laminates several ceramic layers, 1% of the assembles are defective. Assume that the assemblies

Setler79 [48]

There are several information's already given in the question. based on those information's, the answer can be easily deduced.

a. It is already given that 1% are defective. It is required to find the number that is needed to be checked to get 5 defective products.
Then
1% of X = 5
0.01X = 5
x = 5/0.01
= 500

b. σ = square root [(n^2−1)/12]
= square root [(250000 - 1)/12]
= square root [249999/12]
= square root (20833.25)
= 144.34
= 144
I hope the procedure is clear enough for you to understand. I also hope that this is the answer that you were looking for and the answer has actually come to your desired help.

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3 years ago

How to find the measurements of an angles

Mariulka [41]

•sum of the angles in a triangle = 180°
•sum of the angle in a quadrilateral = 360°
•opposite angles are equal
•for two parallel lines and a transversal, corresponding angles are equal, and alternate angles are equal.
•If it already has an angle for a triangle subtract that by 180 and divide it by two you have the other two angle, if you already have two angles on a triangle add those together and subtract from 180 thats the last angle, same for a quadrilateral but you subtract by 360 instead.

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3 years ago

Please help I am struggling please

Katen [24]

Answer:

x = 8sqrt3

y=8

Step-by-step explanation:

cos60=y/16

y=16cos60

y=16x1/2

y=8

sin60=x/16

x=16sin60

x=(16sqrt3)/2

x=8sqrt3

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3 years ago

Paula can make 14 beaded bracelets in an hour.Tina can make 13 bracelets in an hour.In one week,Paula made bracelets for 6 hours

Leno4ka [110]

Paula would be 14 times 6 or 84
Tina would be 13 times 8 or 104
So tina made more

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3 years ago

What is 3/4 = w + 2/5

shusha [124]

Convert all fractions to have the same denominator.

To convert, we must find the least common multiple of the two denominators of the fractions:

Multiples of 4: {4,8,12,16,20}
Multiples of 5: {5,10,15,20}

The least common multiple of 4 and 5 is 20.

Multiply the fractions by a number that will result in the denominator being 20:

$\frac{3}{4} * \frac{5}{5} = \frac{15}{20}$

$\frac{2}{5} * \frac{4}{4} = \frac{8}{20}$

The equation should now look like this:

$\frac{15}{20} = w + \frac{8}{20}$

Subtract both sides by 8/20 to get w by itself:

$\frac{15}{20} - \frac{8}{20} = \frac{7}{20}$

$w = \frac{7}{20}$

The value of w is 7/20.

7 0

4 years ago

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