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Oxana [17]
3 years ago
8

ACTUALLY NEED HELO YOU PLS

Mathematics
1 answer:
Anton [14]3 years ago
4 0

Answer:

V=3971.5

Step-by-step explanation:

13*13*13==2197

1/2*169*21=1774.5

V=2197+1774.5

V=3971.5

You might be interested in
I need to solve V=KT/P for K... Help!
ipn [44]
The equation starts as
v =  \frac{kt}{p}

in order to solve for k first you must multiply each side by p. you must multiply each side by p as it is originally being divided, to get rid of it you must do the opposite operation.
v \times p =  \frac{kt}{p}  \times  \frac{p}{1}
you cross multiply and end up with
v \times p = kt
now to leave k by itself you must divide by t
\frac{v \times p}{t}  =  \frac{kt}{t}
the t cancels out or becomes 1 leaving you with the answer of
\frac{v \times p}{t}  = k
4 0
3 years ago
Read 2 more answers
The two lines graphed below are not parallel. How many solutions are there to the system of equations?
Pavel [41]

The number of solutions for the given two line graph is; D: One Solution

<h3>How to Interpret Parallel Line graphs?</h3>

Since the two lines in the graph are not parallel, it means that both lines will intersect at some point.

Now, from the graph, we can see the following highlights;

The x-coordinate of the point of intersection is at x = 1.5

The y-coordinate of the point of intersection is at y = -0.75

Thus, the ordered pair that represents the solution is (1.5,-0.75)

Thus, the two line graph has only one solution

Read more about Parallel line graphs at; brainly.com/question/1698138

#SPJ1

7 0
3 years ago
Can someone tell me how to do this?
Yanka [14]

Answer:

For #21, x = 35, y = 85

Step-by-step explanation:

For these types of problems, you will simply use to facts.  The sum of the measure of a line is 180 degrees, and alternate angles of crossing lines are equivalent.  With that being said, let's work #21.

We can see that there are two lines, and we are given 2 values to find with 3 possible equations.

[1] ( 2x + 25 ) + y = 180

[2] y + ( 3x - 10 ) = 180

[3] 2x + 25 = 3x - 10

Using any of these equations, we can solve for the variables.  Let's use the 1st and 3rd equations to find x and y.

2x + 25 = 3x - 10

2x + -2x + 25 + 10 = 3x + -2x + -10 + 10

35 = x

Now plug in the value of x to find y:

( 2x + 25 ) + y = 180

( 2(35) + 25 ) + y = 180

( 70 + 25 ) + y = 180

95 + y = 180

y = 85

We can check these values by plugging into the 2nd equation

x = 35 ; y = 85

y + ( 3x - 10 ) = 180

(85) + (3(35) - 10) = 180

85 + ( 105 - 10) = 180

85 + 95 = 180

180 = 180

Thus, we have validated our results and found the values of x and y.

Cheers.

3 0
3 years ago
Trigonometry problem​
IgorC [24]

Answer:

The values are x = 0° or x = 60°

Step-by-step explanation:

Given:

\cos x + \frac{1}{\sqrt{3} }\times \sin x = 1

Let it be in the form of

a\cos x + b\sin x = 1 such that

a = 1

b=\frac{1}{\sqrt{3} }

We have

\sqrt{(a^{2}+b^{2} )}=\sqrt{(1^{2}+(\frac{1}{\sqrt{3} }) ^{2} )}\\=\sqrt{\frac{4}{3}}\\=\frac{2}{\sqrt{3} }

Now, Dividing both the side by \frac{2}{\sqrt{3} } we get

\frac{\sqrt{3} }{2}\cos x + \frac{1}{2}\sin x =\frac{\sqrt{3} }{2}\\

We Know

\sin 60 =\frac{\sqrt{3} }{2}\\and\\\cos 60 = \frac{1}{2}

Now by replacing with above values we get

\sin 60\times \cos x + \cos 60\times \sin x = \frac{\sqrt{3} }{2}\\

Also we have formula

\sin A\times \cos B + \cos A\times \sin B = \sin (A+B)

By applying the above Formula we get

\sin (60+x)=\frac{\sqrt{3} }{2}\\

Also ,

\sin (60)=\frac{\sqrt{3} }{2}\\and\\\sin (120)=\frac{\sqrt{3} }{2}

Comparing we get

 60 + x = 60   or  60 + x = 120

∴ x = 0°               ∴ x = 120 - 60 = 60°    

Therefore, the values are x = 0° or x = 60° i.e between 0° to 360°

5 0
3 years ago
What is the slope of the line
Elena L [17]

Answer:

slope = -3/4

Step-by-step explanation:

y(1)-y(2)/x(1)-x(2)

Plug in coordinates (0,4) and (4,1)

1-4/4-0

-3/4 is the slope

6 0
3 years ago
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