3. 5x² + 13x = -6 * SHOW WORK *

Answer:

x = 75

Step-by-step explanation:

X = 180 - 78 - 27 = 75

Answer:

The answer is 75

Step-by-step explanation:

I got this answer because i added 78 and 27 then i subtracted it from 180 because that was the interior angle of a triangle and i got 75.

Answer:

it's D you multiply everything by 2

Answer:

-9x is negative but the answer of the whole problem would be 0.

Answer:

WX=29

Step-by-step explanation:

ST=10x+5

WX=7x+8

UV=8x-1

since SW=UW, WX is centered between UV and ST

(10x+5)-(7x+8)=(7x+8)-(8x-1)

3x-3=-x+9

4x=-12

x=3

substitute

WX=7(3)+8=29

Answer:

29 lol i took this st00pid test and got it right :)

Step-by-step explanation:

Answer:

x < -11/6.

Step-by-step explanation:

−12x + 13 > 35

-12x > 35 - 13

-12x > 22

Divide both sides by -12 and invert the inequality sign:

x < -22/12

x < -11/6.

Answer:

C.30

Step-by-step explanation:

total ratio=9

y=[tex]\frac{5}{9}[/tex]×54=30

Answer: .81

Step-by-step explanation: divide 9 and 11

Answer:

$17242.50 is the total amount he paid. The sales tax is $742.50

Step-by-step explanation:

Answer:

[tex] - 5 \frac{1}{3} \div 3 \frac{1}{10} \\ = \frac{ - 5 \times 3 + 1}{3} \div \frac{3 \times 10 + 1}{10} \\ = \frac{ - 16}{3} \times \frac{10}{31} \\ = \frac{ - 160}{93} [/tex]

Hope it will help :)

Answer:

-160/93

Step-by-step explanation:

reduce the expression, as long as this is possible, by canceling out common factors. Then you get -160/93

Answer:

1st=2. (-7,9) (-18,9)

2nd=4. y= 5/9x+10

Answer:

Step-by-step explanation:

4/36/2/2

2/18/2/2

1/9

Answer:

[tex]4x + 8[/tex]

Step-by-step explanation:

Hi!

So we have to use the distributive property here and distribute 4 to both the x and the 2.

So we do

[tex](4*x)+(4*2)[/tex]

Simplify further:

[tex]4x + 8[/tex]

That's your answer

Answer:

NM =LK=20cm(side of parallelogram are equal)

LN=KM=24cm(diagonal of parallelogram are equal)

QM=1/2×24=12cm(diagonal bisect each other)

KN=√(24²-20²)=13.26cm(by Pythagoras theorem)

Answer:

(-1, -5)

Step-by-step explanation:

[tex]\left \{ {{y=5x} \atop {y=9x+4}} \right.[/tex]

1. We must calculate x, for that we must substitute y, so we have:

5x=9x+4

2. Now we solve the equation.

5x-9x=4

-4x=4

x=-1

3. Now we must calculate y

y=5x

y=5(-1)

y=-5

And the answer is (-1, -5)

Answer: $7.25

Step-by-step explanation:

Let T = taco cost

Let M = milk cost

T + M = 2.10

2T + 3M = 5.15

Multiply the first equation by (-2) and add it to the second equation

-2T - 2M = -4.20

2T + 3M = 5.15

M = 0.95

Plug this value for M in to the first equation

T + 0.95 = 2.10

T = 1.15

So a taco costs $1.15 and the milk costs $0.95

1.15 * 3 = 3.45

0.95 * 4 = 3.80

3.45 + 3.80 = 7.25

Answer:

1,172.3 cm³

Step-by-step explanation:

Find the volume of one rod, then divide the total volume of steel used by the volume of one rod.  The volume of one rod is

V = (πd²/4)h

d = 4 cm

h = 20 cm

Plugin the numbers and get V in cm³, then divide the given total volume of 28,134.4 cm³ by V.  If the result is not an integer, then round down.

Add

20 + 4 = 24

Then

28,134.4 ÷ 24 = 1172.26

Rounded to the nearest 0.1 or  the Tenths Place = 1,172.3

Therefore, 1,172.3 rods will be made per hour.

Answer:

Area : 27.5

Perimeter : 20

Step-by-step explanation:

All sides of a regular pentagon have the same length

1 side = 4

4x5 = 20 = Perimeter

Pentagon area formula :

1/4(sqrt(5(5+2sqrt(5)))x)

Plug x in (side length)

27.53

round to nearest tenth

27.5

Answer:

Step-by-step explanation:

This is proportional relationship

The function is:

The slope is:

The y-intercept is:

The function is:

Answer:

A. f(x) = 6.5x

B. f(x) = 3x - 2

Step-by-step explanation:

Answer:

-64x X 4y X 3125y X x

-64X^2 X 1250Oy^2

Step-by-step explanation:

Answer:

-40y^3 / x^5

Step-by-step explanation:

Apply exponent rules

a^b * a^c = a^b+c

a^-b = 1/a^b

Answer:

Step-by-step explanation:

1a. 2x - 4y = 2

   -x  + 4y = 3

x = 5

-5 + 4y = 3

4y = 8

y = 2

(5, 2)

1b. 2x + 3y=1

     -2x + 2y = -6

      5y = -5

       y = -1

     2x - 3 = 1

    2x = 4

    x = 2

   (2, -1)

2a.  x + 2y = 4

       2x - 5y = -1

     -2x - 4y = -8

      2x -  5y = -1

    -9y = -9

      y= 1

2x - 5 = -1

 2x = 4

  x = 2

(2, 1)

2b. 4x + 2y = 4

       x - 2y = -5

       5x = -1

        x= -1/5

    -1/5 - 2y = -5

    -2y = -4 4/5

      y= 12/5

(-1/5, 12/5)

3. 5x + 3y = 85

  11x + 5y = 163

25x + 15y = 425

-33x - 15y = -489

 -8x = -64

x = 8 regular

5(8) + 3y = 85

40 + 3y = 85

3y = 45

y = 15 mini bouquets    

(8 regular, 15 mini bouquets)

4a. 6x + 12y = -6

     18x - 12y = - 162

24x = -168

x = -7

3(-7) - 2y = -27

-21 - 2y = -27

-2y = -6

y= 3

(-7, 3)

4b. 3(6 -y) - 2y = 38

     18 - 3y - 2y = 38

     18 - 5y = 38

    -5y = 20

    y = -4

x = 6 + 4

x = 10

(10, -4)

Answer:

D. Gross income is the total amount an employee earns BEFIRE deductions...

Answer:

C. Hope I'm right :)

Step-by-step explanation:

Because 36.05 x 25.05 = 903.0525

Hope I Helped :)

Answer:

ok here is the answer, i didnt copy.

Step-by-step explanation:

the answer is c because search it lol

Answer:

It would be

-2+7x

Step-by-step explanation:

Answer:I DO NOT KNOW

Step-by-step explanation:FIND OUT YOURSELF LOL

Answer:

23

Step-by-step explanation:

Answer:

(from greatest to least)

Jill (12.80) , Josh (12.75) , Jason ( 11.02) , Jennifer (10.20)

Step-by-step explanation:

Jason = 11.02

Jen = 10.20

Josh = 12.75

Jill = 12.80

Least = Jennifer

Greatest = Jill

Jill (12.80) , Josh (12.75) , Jason ( 11.02) , Jennifer (10.20)

Answer: Jill (12.80), Josh (12.75), Jason (11.02), and then Jennifer (10.20)

Step-by-step explanation: Amounts of money spent from greatest to least!