please help!!!!!!!!!!!! !!!

Answer:

-7g + 56

Step-by-step explanation:

-7 (g - 8)

-7 × g + -7 × 8

-7g + 56

Answer:

[tex]y+2=-3(x-2)[/tex]

Step-by-step explanation:

The point-slope form of the straight line is given as

[tex]y-y_1=m(x-x_1)[/tex]

Here [tex]m=-3[/tex] and [tex](x_1, y_1)=(2, -2)[/tex]

[tex]y+2=-3(x-2)[/tex]

Answer: 0.4 gallons left

Step-by-step explanation:

1.4 gallon - 1 gallon = 0.4 gallons

Answer:

f(5)=14

Step-by-step explanation:

f(5)=2(5)+4

f(5)=10+4

f(5)=14

Answer:

14

Step-by-step explanation:

Ignore the f(x) for now.

x is 5, so we plug it in to get 2*5+4. Using PEMDAS, you multiply 2 and 5 to get 10 and add 4 to get 14.

Answer:

70x+4^2+3

Step-by-step explanation:

Answer:

equation is not availble

Step-by-step explanation:

Answer:

2 2/5

Step-by-step explanation:

Answer: 40

Step-by-step explanation:

Fill in variables: 3(6)-8(-2)+6

Multiply: 3(6)=18; -8(-2)=16

Replace: 18+16+6

Combine like terms: 40

Answer:

40

Step-by-step explanation:

the percentage increase of members at the skating club is 28%

"relative change = (final value - initial value)/ initial value"

percent change = relative change × 100

For given example,

There were 200 members at a skating club. After some new members went in, there were 256 members altogether at the skating club.

initial value (a) = 200

final value (b) = 256

So, relative increase is,

⇒ R = (b - a)/a

⇒ R = (256 - 200)/200

⇒ R = 56/200

⇒ R = 0.28

So, the percent increase is,

⇒ P = R × 100

⇒ P = 0.28 × 100

⇒ P = 28%

Therefore, the percentage increase of members at the skating club is 28%

Learn more about the percentage change here:

https://brainly.com/question/14801224

#SPJ2

Answer:

Step-by-step explanation:

the question is asking for the length of the side labeled x

use Pythagoras'  theorem to find that side

where c = x   because c represents the hypotenuse in the theorem and x is on the hypotenuse in this problem

c = [tex]\sqrt{a^{2} + b^{2} }[/tex]

sooo  plug in a = 14 and b = 10

c = [tex]\sqrt{14^{2} + 10^{2} }[/tex]

c = [tex]\sqrt{196+100}[/tex]

c = [tex]\sqrt{296}[/tex]

c= 17.20465.....  ( that's the approx. length of side x in the problem )

since this is a right triangle we could use trigonometry to find the two angles use SOH CAH TOA  to remember how those functions fit on the triangle.

Sin(Ф)=Opp/Hyp  Cos(Ф)=Adj/Hyp  Tan(Ф)=Opp/Adj

since we know the Hyp (hypotenuse) and the side adjacent will be the side with the 10 soooo...

Cos(Ф)=10/17.20465

Ф = arcCos(10/17.20465)

Ф = 54.4623°  is the angle on the side with 10

the side with 14 then has an angle of 35.5376°

:)

Answer:

Graph 1:

y-intercept =  7

Slope =  -1/2   <--- (It's a fraction) (-1 over 2)

Equation:  y = -1/2x + 7

________________________________

Graph 2:

y-intercept =  4

Slope =  5/6   <--- (It's a fraction) (5 over 6)

Equation:  y = 5/6x + 4

_________________________________

Graph 3:

y-intercept =  9

Slope =  -5/7   <--- (It's a fraction) (-5 over 7)

Equation:  y = -5/7x + 9

Hope this Helps  :)

Answer:

should also = 35* if I'm not mistaken

Step-by-step explanation:

if this is wrong I'm very sorry. if no one else helps u with in the next 10 mins I suggest using socratic, it helps me

9514 1404 393

Answer:

Step-by-step explanation:

1. The slope of the given line is the x-coefficient, 7. The slope of the perpendicular line is the negative reciprocal of this: -1/7. Since the line goes through the origin, the y-intercept is zero.

  y = -1/7x

__

2. The first part of this problem is to find the solution to the given system of equations. We can substitute for x to do that:

  3(5 -y)-2y = 10

  15 -5y = 10 . . . simplify

  -3 +y = -2 . . . . divide by -2

  y = 1, x = 4 . . . add 3 to find y; subtract y from 5 to find x

__

The second part of this problem requires we note the slope of the parallel line. It is the x-coefficient, 2. The y-intercept can be found from ...

  b = y -mx = 1 -2(4) = -7

So, the desired line in y=mx+b form is ...

  y = 2x -7

_____

The first attachment shows the perpendicular lines of problem 1.

The second attachment shows the parallel lines of problem 2.

Step-by-step explanation:

Remember the difference of squares:

a² - b² = (a + b)(a - b)

Therefore (2 + i√10)(2 + i√10)

= 2² - (i√10)²

= 4 - (10i²)

= 4 - (10)(-1) because i² = -1

= 4 + 10

= 14.

Answer:

14

Step-by-step explanation:

Note: i^2 = -1

4 + 2i(sqrt10) - 2i(sqrt10) - i^2(sqrt(100))

= 4 - (-10)

= 4 + 10

= 14

Answer: This is a fraction equal to

48 kilometers ÷ 3 hours

We want a unit rate where

1 is in the denominator,

so we divide top and bottom by 3

48 kilometers ÷ 3

3 hours ÷ 3

=  

16 kilometers

1 hour

=  

16 kilometers

hour

= 16 kilometers per hour

Step-by-step explanation:

Answer:

1. D

2. A

3. B

Step-by-step explanation:

1. Add exponents

2. Multiply exponents to outside exponent and to the 16

3. Distribute exponents

Answer:

[tex]y=2x-3[/tex]

Step-by-step explanation:

1. Using the point of intersections, we use the substitution method to find the coordinates of the line parallel to [tex]2x-y-9=0[/tex]

[tex]5x+y+4=0[/tex]

[tex]y= -4-5x[/tex]

substituting the value of y in [tex]2x+3y=1[/tex]:

[tex]2x +3(-4-5x)=1\\\\2x-12-15x-1=0\\-13x=13x\\x= \frac{13}{-13}= -1[/tex]

substituting x=-1 in y= -4-5x:

[tex]y= 1[/tex] (upon solving, you should get this)

[tex](x,y)= (-1,1)[/tex]

2. Using y=mx+c and making y the subject of the formula 2x-y-9=0 and using the coordinate we found earlier, we will find the equation of the parallel line. (We make y the subject of the formula to find the gradient)

[tex]2x-y-9=0\\2x-9=y\\y= 2x-9[/tex]

[tex]y= mx+c\\[/tex]

-1= 2 x 1 +c

-3=c

Answer:

(41/5, 6/5)

Step-by-step explanation:

2x+-2y=14

x+4y=13

You can multiply the first equation by 2 so you can eliminate the y:

2(2x+-2y=14)

4x+-4y=28

Then you can set up both equations to be added together:

 4x+-4y=28

+ x+4y=13    

5x=41

x=41/5

Then you can substitute 41/5 for x in the original equation:

x+4y=13

41/5+4y=13

5(41/5+4y)=5(13)

41+20y=65

20y=24

y=24/20

y=6/5

Check:

2x+-2y=14

2(41/5)+-2(6/5)=14

82/5+-12/5=14

70/5=14

14=14

Answer:

$6.83

Step-by-step explanation:

A brownie costs $3.45, an ice cream costs $2.43, and a cookie costs $0.95. So $3.45 + $2.43 + $0.95 = $6.83.  If you need to know the change if they paid with $10.00 also  . . . That would be $10.00 - $6.83 = $3.17 change.

Answer:

5.76 rounded to the nearest tenth is 5.8 or 5.80.

Answer:

$0.86

Step-by-step explanation:

Let's say the cost of the apples is A and the cost of the pears is P.

3A+6P=7.44

4A+10P=11.58

Now our best bet is elimination. We have to multiply the equations (Dont' forget about both sides, otherwise it does not work!) by the least common multiple.

We want to keep the variable A, meaning we'll have to target B. The least common multiple is 30, so now we'll multiply both equations like so:

15A+30P=37.20

12A+30P=34.74

Now we subtract the second equation from the first one. We get:

3A=2.46

And we divide both sides by 3, leaving us with

A=$0.86 or 86 cents.

Answer:

The measure of x is:

9 inches

Step-by-step explanation:

Perimeter = x + 2(x-4)

perimeter = 19 inches

then:

19 = x + 2(x-4)

19 = x + (2*x) + (2*-4)

19 = x + 2x - 8

19 = 3x - 8

19 + 8 = 3x

27 = 3x

27/3 = x

x = 9 inches.

Answer:

9x+3

Step-by-step explanation:

First join the x terms, and you will find 9x (1x+8x), then join the numbers, and you get 3 (-7+10)

Hope it helps!

Answer:

9x + 3

Step-by-step explanation:

given: 1x - 7 + 8x + 10

like terms: 1x + 8x - 7 + 10

solution: 9x + 3

some people might be confused about "1x + 8x - 7 + 10" bolded part. the minus sign beside 7 would become (-7), so adding (-7) + 10 will = 3

Answer:

you didnt attach anything

Step-by-step explanation:

Answer:

58[tex]\sqrt{65}[/tex]

Step-by-step explanation:

you can find the height of this trapezoid by using the pythagorean theorem where the hypotenuse is 18 and one leg is 8 (33-25)

let x = height

[tex]8^{2}[/tex] + [tex]x^{2}[/tex] = [tex]18^{2}[/tex]

[tex]x^{2}[/tex] = 324 - 64

[tex]x^{2}[/tex] = 260     therefore, x = [tex]\sqrt{260}[/tex]

[tex]\sqrt{260}[/tex] = [tex]\sqrt{4}[/tex]· [tex]\sqrt{65}[/tex]  or  2[tex]\sqrt{65}[/tex]

A = [tex]\frac{1}{2}[/tex]h x (sum of the bases)        

bases are 25 and 33

A = (2[tex]\sqrt{65}[/tex]) ÷ 2)58