how many solutions does the system of equations have explain 2.5(x+4)=4.1x+16-1.6x

Answer:

[tex] \frac{7 {n}^{2} - 41n + 8 }{ {n}^{2} - 1 } [/tex]

Step-by-step explanation:

[tex] \frac{7n}{n + 1} + \frac{8}{n - 7} \\ \\ = \frac{7n(n - 7) + 8(n + 1)}{(n + 1)(n - 1)} \\ \\ = \frac{7 {n}^{2} - 49n + 8n + 8 }{ {n}^{2} - 1 } \\ \\ = \frac{7 {n}^{2} - 41n + 8 }{ {n}^{2} - 1 } [/tex]

Answer:

Simplified:

This can be further simplified if required

Answer:

Area ≈ 176.24m²

Hope it helps

Please mark me as the brainliest

Thank you

Answer:

[tex]x=64 \textdegree[/tex]

Step-by-step explanation:

From the question we are told that

Angle of extension [tex]y=116 \textdegree[/tex]

Generally the angle formed at x is mathematically given as

[tex]x=180-116[/tex]

[tex]x=64 \textdegree[/tex]

Answer:

26°

Step-by-step explanation:

A side of the triangle below has been extended to form an exterior angle of 116°. Find the value of xx.

The answer is 26° i tried 64 and it was incorrect.

9514 1404 393

Answer:

  x° = 59°

Step-by-step explanation:

The mnemonic SOH CAH TOA is intended to remind you of the trig relations. The one applicable here is ...

  Tan = Opposite/Adjacent

  tan(x°) = 5/3

  x° = arctan(5/3) ≈ 59.04°

The value of x is about 59.

Answer:

7q-35

Step-by-step explanation:

Answer:

I think 22.5

Step-by-step explanation:

okay so we know that lines bc and pf equal eachother

18/8 = 2.25 this is the scale factor

10 times 2.25 is. 22.5

I think it would be 22.5

Answer:

hopefully u understand

Answer:

so in all it's 4.

Step-by-step explanation:

1: for the drink size.

1: for the kind of drink you want.

1: for the lid or no lid.

1: for the straw or no straw

Answer:

The slope is 0

Step-by-step explanation:

the line is straight, so the slope is 0. I hope this helps

Answer:

well u can find triangles in the shape and they are the same shape just smaller

Step-by-step explanation:

combine like terms

3x+4x= 7x

14-1= 13

then divide by 7

1.85(keep going)  i think THINK this is right im sorry if it isn't

Answer:

80 10x8 is 80

your welcomr

Answer:

Area = 9 cm²

Step-by-step explanation:

The shape given is a kite.

Area of a kite = ½(D1*D2)

Where,

D1 = 6 cm

D2 = 3 cm

Therefore:

Area = ½(6*3)

Area = ½(18)

Area = 9 cm²

Answer:

I think it is option A

point

hope it helps

Answer:

point

Step-by-step explanation:

Answer:

3 toothpicks make a triangle  x =3

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

Answer: its an acute angle so its 90

Step-by-step explanation:

Answer:

4.31 as said

Step-by-step explanation:

Answer:

it could be 4.30 because when u divide those two the answer is 4.3057142857, and because the number in the hundreths place is just a 0 its probably just 4.30 i could be wrong sorry

Answer:

The answer would be C

Step-by-step explanation:

Answer:

i recommend math-way's they give you step by step or if you are work on Big ideas work use Slader they have all the answers  

Step-by-step explanation:

Answer:

Exponential growth; 40%

Step-by-step explanation:

Just to explain,

the equation A(t)=P(1+r)^t is the standard equation for exponential growth

what youre looking at is the 'r' portion which is the .4 in that equation

to get your percent from the decimal, move the decimal to the right 2 places to go from .40 to 40%

Answer:  345 cal

Step-by-step explanation:

Solution 1:

230/4 = x/6

4x = 6(230)              use cross multiply

4x = 1380

x = 345 cal

Solution 2:

Cal in 1 ounces: 230/4 = 57.5cal/ounces

Cal in 6 ounces: 57.5cal/ounces x 6 = 345 cal

Answer:

y=−2x+7

Step-by-step explanation:

The other moron doesn't understand simple math.

An equation of the line that passes through the point (7,-7) and is perpendicular to the line x - 2y = 2 will be  2x + y = 0.

We have the given line x - 2y = 2 which is in form ax + by = c As we know that slope of line ax + by = c will be -(a/b).

Therefore For given line x -2y = 2 value of a will be 1 and value of b will be -2. Therefor Slope of given line will be -(a/b) = -(1/-2) = 1/2.

Now As we know that slope of two lines which are perpendicular to each other has product of there slopes as negative of unity that is -1.

Let the slope of line which we have to find be m also we have slope of given line as 1/2.

∴ m(1/2) = -1

∴ (m/2) = -1

∴ m = -1(2)

∴ m = -2.

Now as we know that line passes through the point given as (7,-7) and has slope m = -2.

Therefore equation of a line passing through a point (x₁, y₁) and have slope m will be given as

  y - y₁ = m(x - x₁)

∴ y - (-7) = -2(x - 7)

∴ y + 7 = -2x -(-7)

∴ 2x + y = 7 - 7

∴ 2x + y = 0

For more details about slope of line visit the link below

https://brainly.com/question/16949303

#SPJ2

Answer:

110

Step-by-step explanation:

Just trust me mate im in 7th grade

Answer:

b. reflection, shrink, right 3 and up 4

Step-by-step explanation:

- : reflection across x axis

1/2 : compression vertically by a factor of 1/2

x - 3: shift right 3 units

+ 4: up 4 units

Answer:

its 2 to the 9th power

Step-by-step explanation:

Answer:

negatively, the more the ice melts the high the sea level rises.

Step-by-step explanation:

from 2010 to 2011 the average ice mass decreased by 463 gigatons

Answer: 35%

Step-by-step explanation:

13+4+3 = 20

20 - 13 =7

7/20 = 35%

Answer:

35%

Step-by-step explanation:

there are 20 pies in all

given:

13- apple

4- pecan

3- pumpkin

question:

percetange of piesbaked today were NOT apple.

solve:

4 + 3 = 7 (pecan and pumpkin)

7 ÷ 20 = .35%

check:

20 × .35= 7 (number of pies which is not apple)

Hope this helps

Substitute the values of angles P and Q in an equation that equals 90 degrees

62° + 4x = 90°

Then isolate the variable by first subtracting 62 from both sides

62 + 4x = 90           →    4x = 28

-62           -62

Then divide both sides by 4

4x = 28               →  x = 7

/4    /4  

Answer:

55555555555555555566666

Answer:

omg lol okay i love this:

Step-by-step explanation:

one day bob, billy, and sara went to the store to buy cookies.

they bought a box of 15 cookies.

THERE ARE TWO WAYS THIS STORY CAN GO:

NUMBER ONE:

bob, billy, and sara decided to split the bill. each cookie was one dollar. they each payed $5.

NUMBER TWO

when they got home, bob, billy, and sara decided to eat the cookies. they didn't know how to spilt them :(

they each took one cookie until they had an even amount. each child got 5 cookies.

THE END LOL I LOVE THIS

Answer:

R 8.8

Step-by-step explanation:

Here, we want to get the price per ticket

from the question, we have that 114 buys 13 tickets

thus, the cost of a ticket is R 114/13

= 8.80