the expression (x^-8) (x^3) is equivalent to the expression x^n. what is the value of n?​

Answer:

The value of  [tex]x = \frac{1}{6}[/tex]

The length of the rectangle   [tex]= \frac{3}{2}[/tex] cm

The width of the rectangle  = [tex]\frac{16}{3}[/tex] cm

Step-by-step explanation:

Step(i):-

Given that area of the rectangle = 8 cm²

Length of the rectangle (l) = 3x+1

width of the rectangle (w) = 2x+5

The area of the rectangle = length × width

Given that area of the rectangle = 8 cm²

Step(ii):-

Now

                   (3x+1) ( 2x+5)    = 8

       ⇒      3x(2x+5) +1(2x+5) =8

                    6 x² + 15x + 2x +5 =8

         ⇒     6 x² + 17x -3 =0

        ⇒      6 x² + 18x -x -3 =0

       ⇒   6 x ( x+3) -1(x+3) =0

       ⇒   6x -1 =0  and  x +3 =0

              [tex]6x = 1[/tex]  and   x =-3

             [tex]x = \frac{1}{6}[/tex]

The length of the rectangle

                               [tex]= 3 (\frac{1}{6} ) +1 \\= \frac{3}{2}[/tex]

The width of the rectangle

                            [tex]= 2 (\frac{1}{6} ) +5[/tex]

                            = [tex]\frac{16}{3}[/tex]

Answer: The second answer.

Step-by-step explanation:

Answer:

So, the value of mn is 72.

Step-by-step explanation:

Given, m−n=16 and m  

2

+n  

2

=400

We know that, (m−n)  

2

=m  

2

+n  

2

−2mn   ... (i)

By putting the given values in equation (i),

(16)  

2

=400−2mn

256=400—2mn

256−400=−2mn

—144=−2mn

72=mn

So, the value of mn is 72.

Answer:

(a+b)1/3+a^2

Step-by-step explanation:

Hope it helps!

Answer:

18$

Step-by-step explanation:

0.9*25-4.5= 18

Answer:

18

Step-by-step explanation:

I did the maps test

Answer:

40% of 240 = 96

Step-by-step explanation:

x = 240 × 40/100

x = 96

[tex]\bold{of = multiply}\\\bold{40\% \ of\ 240}\\ \\ \bold{40\% = \dfrac{4}{100}=\dfrac{2}{5}}\\ \\ \bold{\dfrac{2}{5}\times240=\underline{96}}\\\\\\\boxed{\boxed{\bold{Answer: \bold{\underline{96}}}}}\checkmark[/tex]

Answer:

6

Step-by-step explanation:

you can identify by it not having the x or any other variable!

Answer:

4x - 16

Step-by-step explanation:

X can be any value (I made it 20)

5.5(2)+ 1 - (1.5(2) +17)

11 + 1 - 20

12 -20

-8

4(2) - 16

8 - 16

-8

You better say thanks (from a grade 9 academic student)

Answer:

4x-16

Step-by-step explanation:

5.5x + 1-(1,5x+17)?

When there's a - in front of an expression in parenthesis, cvhangethe sign of each term in the expression.

5.5+1-1.5x-17

Like terms

4x + 1-17

Then boom 4x-16

rtwrygfijbhiueysgfuuwyguwei

1) x=10

2)x=8

3)x=9

Those are the answers for each equation

there’s a pic.

Answer:

he makes $11.34 and hour and $113.40 in 10 hours

Step-by-step explanation:

you divide 453.6 by 40 to get the 1 hour part and then divide it by 4 to get the 10 hour part

The amount of money that he earns in one hour and in 10 hours will be $11.34 and $113.4, respectively.

The rate is the ratio of the amount of something to the unit. For example - If the speed of the car is 20 km/h it means the car travels 20 km in one hour.

The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.

Clifford works 40 hours per week while working as a laboratory technician. He earns $453.60 for each week of work.

The amount of money that he earns in each hour is given as,

Rate = $453.60 / 40

Rate = $11.34 per hour

The amount of money that he earns in 10 hours is given as,

⇒ $11.34 x 10

⇒ $113.4

More about the rate link is given below.

https://brainly.com/question/14731228

#SPJ2

find the area the get the premiraterStep-by-step explanation:add

Answer:

5: A

6:C

7: No solution, the lines are parallel

8 part 1: A

8 part 2: D

and then I can't really read the rest of 9 but can tell you that B is true

Step-by-step explanation:

I'll assume that you need help with all of it and I don't know what the elimination method is so I just used desmos if you need me to explain it leave a comment

Answer:

18 right foot players: 6 left foot players

Step-by-step explanation:

Let's write an equation

we do 3x+x=24

4x=24

x=6

Let me know if you have any questions

Answer:

A and B

Step-by-step explanation:

A triangle is a triangle if the sidelengths, a, b, c, in increasing order, satisfy the condition that a+b > c

only A and B satisfy that condition

Answer:

d = 1.75 miles

Step-by-step explanation:

A track team ran 8 and 3/4 miles in 5 days.

We need to find the distance covered by it each day. Let the distance is d.

[tex]8\dfrac{3}{4}[/tex] miles in 5 days

or

[tex]\dfrac{35}{4}[/tex] miles in 5 days.

[tex]1\ day=\dfrac{\dfrac{35}{4}}{5}\\\\=1.75\ \text{miles}[/tex]

So, each day the team will cover 1.75 miles.

Answer:

Less than 90 degrees

Step-by-step explanation:If it were equal to 90 degrees it could make a perfect square as the angle and if its more it would be open wide i guess im a bad explainer sorry

Hence , Option B is correct. It is less than 90 degrees.

A figure which is formed by two rays or lines that shares a common endpoint is called an angle.

Observe the given figure.  A perfect Right Angle is in the  shape  "L"(or opposite/mirror L also). One can measure or construct it using a protractor.

If the L seems to be bent inwards , then its an acute angle and if the L is bent outwards, then it is an obtuse angle.  

From the given figure it can be concluded that the angle formed is an acute angle and hence its is less than 90 degrees.

Learn more about Angles at:

https://brainly.com/question/24063482

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Answer:

28.85

Step-by-step explanation:

Plug the values in and solve.

G = 5u + 2y

G = 5(2.89) + 2(5.7)

G = 14.45 + 11.4

G = 25.85

Step-by-step explanation:

so...the answer is C.27.7m

Answer:

27.7

................

Answer:

D. 3√x^9 • x

Step-by-step explanation:

3√x^10

A. 3√3x³ + x

B. 3√3x³ * x

= 3√3x^4

C. 3√x³ + x³ + x³ + x

= 3√3x³ + x

D. 3√x^9 • x

= 3√x^(9 + 1)

= 3√x^10

The equivalent expression to 3√x^10 is 3√x^9 • x

Answer:

D

Step-by-step explanation:

The second part is C x^3 3 square root x

The third part is a = -8 b= -2

Answer:

B?

Step-by-step explanation:

What is the multiple choice here? I can only assume that it meant 51 miles/ 3 gallons but I can't be certain.

Answer: C

Step-by-step explanation:

wat great is this this is so hard i traid

Answer:

(2, 1)

Step-by-step explanation:

8x - 9 = 7

8x = 16

x = 2

y = 2(2) - 3

y = 4 - 3

y = 1

Answer:

The answer is $1512.

Step-by-step explanation:

First, multiply 12 by 18, you get 216. Then multiply that by 7, you get 1512. Bryon will need $1512 to cover his photo frame.

Answer:

T(100) represents that the plane flies against the wind at 110mph for 0.714 hours

Step-by-step explanation:

Given

[tex]w = headwind[/tex]

[tex]T = time[/tex]

Model:

[tex]T(w) = \frac{300}{530 - W}[/tex] -- This was not properly presented in your question

Required

What does T(110) means

First, we calculate T(110):

Substitute 110 for w in [tex]T(w) = \frac{300}{530 - W}[/tex]

The expression becomes

[tex]T(110) = \frac{300}{530 - 110}[/tex]

[tex]T(110) = \frac{300}{420}[/tex]

[tex]T(110) = 0.714[/tex] -- approximated

T(100) represents that the plane flies against the wind at 110mph for 0.714 hours

Answer:

m = 2, c = -8.

Step-by-step explanation:

The general form of a straight line equation is

y = mx + c    where m = the slope and c is the y-intercept.

We are given the line

y = 2x + 4

Comparing this with the general form we see that the slope of this line  = 2 and the y-intercept C is 4.

Now the given line y = mx + c is parallel to y = 2x + 4 which means that their slopes are the same so we conclude that m = 2.

Now we need to find the value of c which is the y intercept of y = mx + c.

Consider the points A and B:

A is the point where the line y = 2x + 4 intersects the x axis so y = 0 at this point , So substituting in the equation:

0 = 2x + 4

-4 = 2x

x = -2.

So the point A is (-2, 0)

B  is the point where y = 2x + c cuts the x axis so here y = 0:

0 = 2x + c

2x = -c

x = -c/2.

Now we are given that the 2 intercepts are 6 units apart, so:

-c/2 - (-2) = 6

-c/2 + 2 = 6

-c/2 = 4

-c = 8

c = -8.