3 years ago

3/7 * 0.1 / 5/21 = 0.18

Mathematics

1 answer:

LenKa [72]3 years ago

3 0

Answer:

The answer to your question would be 3/7 * 0.1 / 5/21 = 0.00040816326

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Solve 2sin(2x) - 2sinx +2sqrt3 cosx - sqrt3 = 0

SashulF [63]

Answer:

2sin(2x)-2sinx+2sqrt3cosx-sqrt3 = 0

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4sin(x)cos(x) - 2sin(x) + 2sqrt(3)cos(x) - sqrt(3) = 0

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Factor:

2sin(x)[2cos(x)-1] + sqrt(3)[2cos(x)-1] = 0

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[2cos(x)-1][2sin(x)+sqrt(3)] = 0

Solve:

2cos(x)-1 = 0 or 2sin(x)+sqrt(3) = 0

cos(x) = 1/2 or sin(x) = -sqrt(3)/2

x = +/-pi/3 or x = -pi/3 or (4/3)pi

hope this helps!

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3 years ago

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What is the volume of the cube below?<br> А. Зх<br> в. 6x^2<br> с. 6х^3<br> D.x^3

OleMash [197]

Answer:

V = x^3

Step-by-step explanation:

Please share the illustration of the cube.

V = x^3 is the only possible correct answer.

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3 years ago

Sophia's lemon tree is 45 inches shorter than her apple tree. The Apple Tree is 60 inches tall. Solve the addition equation to f

fenix001 [56]

Answer: 15 inches

Explanation:
The equation would be 60-45=15

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3 years ago

Find the product of (x − 3)2.) ( Group of answer choices x2 + 6x + 9 x2 − 9 x2 − 6x + 9 x2 + 9

liberstina [14]

Answer:

2x-6

Step-by-step explanation:

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4 years ago

Find an equation of the line that (a) has y-intercept of -8 and (b) is parallel to the line 6 x − 1 y = 7 6x-1y=7 . Write your a

faust18 [17]

Answer:

The equation of the line in the slope-intercept form is:

$\:y=6x-8$

Step-by-step explanation:

The slope-intercept form of the equation of a line is

$y\:=\:mx\:+\:b$

As y intercept is -8, we have

$y\:=\:mx\:-8$

Since the line is parallel to $6x-y=7$ , then it has the same slope.

Let's put this equation in $y\:=\:mx\:+\:b$ form and find the slope

$6x-y=7$

$y=6x-7$

Thus, the slope is :

$m = 6$

Now we can finish the equation of the line in the slope-intercept form

$y\:=\:mx\:+\:b$

$\:y=6x-8$ ∵ $m = 6$ , b = -8

Therefore, the equation of the line in the slope-intercept form is:

$\:y=6x-8$

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4 years ago