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2 years ago

12 divided by 479, make sure to show your work. x+7=2x Please Solve

Mathematics

1 answer:

Dmitriy789 [7]2 years ago

7 0

12/479
0.025

x+7=2x

Take x right

2x-x=7
x=7

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a crate of mass 50kg is dragged by an engine along a horizontal floor through distance of 6m in 3s. calculate the power of the e

ss7ja [257]

Answer:

9000watts

Step-by-step explanation:

m=50kg

g=10

h=6

t=3

formula=work done×time

work done=m×g×h

Answer=m×g×h×t

50*10*6*3=9000watts

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2 years ago

given: sin theta= 2/3 and theta is in the second quadrant; evaluate the following expression. sin2theta

andre [41]

The value of $\sin(2\theta)$ is $-\frac {-4\sqrt 3 }9$

<h3>Sine ratio </h3>

The sine ratio is given as:

$\sin(\theta) = \frac23$

<h3>Trigonometry</h3>

In trigonometry, we have the following ratio

$\sin^2(\theta) + \cos^2(\theta) = 1$

Substitute $\sin(\theta) = \frac23$ in the above equation

$\frac 23 + \cos^2(\theta) = 1$

Collect like terms

$\cos^2(\theta) = 1 -\frac 23$

Evaluate

$\cos^2(\theta) =\frac 13$

Take square roots

$\cos(\theta) =\pm\frac 1{\sqrt 3 }$

Rationalize

$\cos(\theta) =\pm\frac {\sqrt 3 }3$

From the question, $\theta$ is in the second quadrant, and cosine is negative.

So, we have:

$\cos(\theta) =-\frac {\sqrt 3 }3$

In trigonometry, we have:

$\sin(2\theta) = 2\sin(\theta)\cos(\theta)$

So, we have:

$\sin(2\theta) = 2\times \frac 23 \times -\frac {\sqrt 3 }3$

$\sin(2\theta) = -\frac {-4\sqrt 3 }9$

Hence, the value of $\sin(2\theta)$ is $-\frac {-4\sqrt 3 }9$

Read more about trigonometry ratios at:

brainly.com/question/10417664

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2 years ago

**<br> Write the word sentence as an inequality. A number w is greater than -4.

Irina-Kira [14]

Answer:

w>-4

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3 years ago

Find a decimal representation of 1/9

telo118 [61]

The decimal representation of 1/9 is 0.1111 etc.

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3 years ago

What is 3,845,275 divided by 35,738

OLEGan [10]

Answer: 107.59625609

Step-by-step explanation:

If you divide 3,845.275 by 35,738 you will get .10759625608. Hope this helps

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3 years ago