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3 years ago

5

What is the solution of −21 = n − 8?

2 answers:

PilotLPTM [1.2K]3 years ago

8 0

Answer:

N=-13

Step-by-step explanation:

In-s [12.5K]3 years ago

6 0

Answer:

-13 = n

Step-by-step explanation:

When working with equations you have to get the variable (n) by itself. You would add +8 to both negative 8 and negative 21, this would eliminate the 8, and then you would add the eight to negative 21, (21-8), which equals 13. And then add the negative sign back on, equaling -13.

I hoped this helped^^

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Evaluate the surface integral. S xz ds, s is the part of the plane 2x 2y z = 4 that lies in the first octant

maksim [4K]

The value of the given surface integral is 4.

The given plane intercepts the coordinate axes at (2, 0, 0), (0, 2, 0), and (4, 0, 0). These point are the coordinates of a triangular region that we can parameterize using.

$S(u,v)=(1-u)((1-u)(2,0,0)+u(0,2,0)+u(4,0,0)\\S(u,v)=(2(1-u)(1-v),2u(1-v),4v)$

<h3>What is the surface integral?</h3>

A surface integral is a generalization of multiple integrals to integration over surfaces. It can be thought of as the double integral analog of the line integral. Given a surface, one may integrate a scalar field over the surface or a vector field.

with 0≤u≤1 and 0≤v≤1. Then the surface element ds is equivalent to

$ds=\||\:\left(s_u\times \:\:S_v\right)||dudv=12\left(1-v\right)dudv$

The surface integral is then

$\int \:\int \:_Sxzds=12\int _0^1\:\int _0^1\:\left(2\left(1-u\right)\left(1-v\right),2u\left(1-v\right),4v\right)dvdu=4$

Therefore the value of the given surface integral is 4.

To learn more about the integral visit:

brainly.com/question/14295614

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6 0

2 years ago

A tow truck company in Houston charges a $40 service call fee and an additional fee of $15 per mile that the vehicle is towed. W

Juliette [100K]

Answer:

<h2>c=15m+40</h2>

Step-by-step explanation:

Step one:

given data

charged = $40 call fee

additional charges= $15 per mile

let the number of miles be m

and let the total charges be c

Required, the linear function which represents the total charges

Step two:

the equation for the charges in slope-intercept form is

c=15m+40

7 0

3 years ago

I need help solving this equatioion. <br> (2xy)(3y)

aniked [119]

Step-by-step explanation:

So first we will multiply

(2xy)(3y)

=

$6x {y}^{2}$

7 0

3 years ago

I need help with these three problems.... please help me????

viva [34]

12. Answer: 2130

<u>Step-by-step explanation:</u>

T = -0.01y + 10.6

9.2 = -0.01y + 10.6

<u>-10.6</u> <u> -10.6 </u>

-1.4 = -0.01y

<u> ÷-0.01</u> <u>÷-0.01 </u>

140 = y

"y" represents the number of years after 1990

1990 + 140

= 2130

**************************************************************

13. Answer: -0.0036° per foot

<u>Step-by-step explanation:</u>

Since the relationship is linear, then we can set up the values as x, y coordinates and use the slope formula to find the rate of degrees over feet.

(6562, 63) and (16405, 28)

rate = $\frac{28 - 63}{16405-6562}$

= $\frac{-35}{9843}$

= $\frac{-0.0036}{1}$

**************************************************************

14. Answer: $0.28 per kWh

<u>Step-by-step explanation:</u>

Same reason as #13

(200, 55) and (500, 140)

rate = $\frac{140-55}{500-200}$

= $\frac{85}{300}$

= $\frac{0.28}{1}$

5 0

3 years ago

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nikitadnepr [17]

3/8 this is your answer so yahhh hope this heped

7 0

3 years ago