4x^2-21x-18=0
Find the discriminate

Answer:

5x − y − 2z

Step-by-step explanation:

Answer:

5−-2

Step-by-step explanation:

Step-by-step explanation:

let eqn be y - y1 = m(x - x1)

m = (9 - 1)/(-3 - (-7))

m = 2

sub (-7, 1):

y - 1 = 2(x + 7)

therefore, the equation is y - 1 = 2(x + 7)

Topic: coordinate geometry

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Answer:

Step-by-step explanation:

8(g - 18) = 160

8g - 144 = 160

g = (160 + 144) / 8

g = 38

Answer:

g = 38

Step-by-step explanation:

8(g - 18) = 160

8g - 144 = 160

8g = 204

g = 38

Answer:

The correct option is;

C. 4800 J

Step-by-step explanation:

The given parameters are;

The mass of the skier = 40 kg

The height of the slope = 12 meter

The acceleration due to gravity, g = 10 m/s²

The potential energy, PE, is given by the formula PE = Mass, m × Acceleration due to gravity, g × Height, h

Substituting the values, gives

The potential energy, PE = 40 kg × 10 m/s² × 12 m = 4800 kg·m²/s² = 4800 J

The potential energy, PE = 4800 J

Answer:

x= 19 degree

Step-by-step explanation:

Answer:

375/8

Step-by-step explanation:

Answer:

What do you mean by T. L. E?

Answer:-12, -10, -3.5, 6, 11

Step-by-step explanation:

Answer:

-12, -10, -3.5, 6, and 11

Step-by-step explanation:

The negative cycle is different from the positive. The greater the depth of the negative number, the less the value. So -12<-10 and -10<-3.5

-12, -10, -3.5, 6, and 11

Answer:

slope(m)=2

Step-by-step explanation:

2/1 or 2

Step-by-step explanation:

3 - -1

3 - 1

4/2 = 2/1 or 2

Answer:

center=(5,-3)

radius = 2 unit

Step-by-step explanation:

         Center with the equation x² - 10x + y² + 6y - 30 = 0 is (5, -3) and the radius is 8 units.

         (x - h)² + (y - k)² = r²

         Here, Center of the circle → (h, k)

                    Radius of the circle → r units

Given equation of the circle in the question is,

x² - 10x + y² + 6y - 30 = 0

Convert this equation to the standard equation of the circle.

x² - 2(5x) + y² + 2(3y) - 30 = 0

[x² - 2(5y) + 5²] - 5² + [y² + 2(3y) + 3²] - 3² = 30

(x - 5)² - 25 + (y + 3)² - 9 = 30

(x- 5)² + (y + 3)² = 64

(x- 5)² + (y + 3)² = 8²

     Therefore, center of the circle is (5, -3) and radius of the circle is 8 units.

Learn more to find the center and the radius of a circle here,

https://brainly.com/question/10543303?referrer=searchResults

Answer: 15 + 9 = 24

Step-by-step explanation: I speak Japanese btw and English.

Answer:

Step-by-step explanation: 3 1/2

Answer:

You have to read at least 5 books per month.

Step-by-step explanation:

18x≥90

Divide each side by 18

x≥5

Answer:

You have to read at least 5 books per month

Step-by-step explanation:

Just do 90 books, divided by 18 months and you get 5 books per month

Answer:

ur answer would be B, because you do 45-15 x 4

Step-by-step explanation:

Answer:

C because elements are form by atoms and when we study about atom we draw atom like circle

so, that's why I think C is correct

Step-by-step explanation:

Option C best shows two elements combining to form a compound.

The term "molecular structure" refers to the structure of a molecule that merely consists of the arrangement of its atoms.

A chemical compound is a material made of several similar molecules that are linked together by chemical bonds and are made up of atoms from various elements.

Chemical compounds cannot be created when two atoms of the same element are bound together since this would need the presence of two distinct elements.

In diagram C it is obtained that atoms are combined to form the compound.

The finest example of two components combining to make a compound is in Option C.

Hence, option C is correct.

To learn more about the molecular structure refer;

https://brainly.com/question/503958

#SPJ2

Answer:

24 peeps

Step-by-step explanation:

Answer:

Jim will be paid $150 or 30% to his account.

Step-by-step explanation:

Have a great day :)

Answer: x is, 2 6 8 10 20-- i think

Step-by-step explanation: y is, 2 3 4 6 10

Answer:

ya he's rite

Step-by-step explanation:

Answer:

d ≥ 300

Step-by-step explanation:

I took the test and it was right! :)

um that is way to much work for only 8 points

Answer:

z>=2

Step-by-step explanation:

2z+2-4z+16<=2z+10

8<=4z

z>=2

Answer:

z[tex]\geq[/tex]2

Step-by-step explanation:

2( z + 1 ) - 4(z - 4) ≤ 2(z + 5)

2z + 2 - 4z + 16 [tex]\leq[/tex] 2z + 10

2 - 4z+ 16 [tex]\leq[/tex] 10

18 - 4z [tex]\leq[/tex] 10

-4z [tex]\leq[/tex] 10 - 18

[tex]\frac{-4z}{-4\\}[/tex] [tex]\leq[/tex] [tex]\frac{-8}{-4}[/tex]

z [tex]\geq[/tex] 2

Answer:

C

Step-by-step explanation:

C is exactly double the graph

Answer:Area = 4700 feet squared

Perimeter= 288 feet

Step-by-step explanation:

Length = 94 feet

Width = 50 feet

Area = Length × Width

= 94 feet × 50 feet

= 4700 feet squared

Perimeter = 2(Length + Width)

= 2(94 feet + 50 feet)

= 2(144 feet)

= 288 feet

Bars --------- Cost

0      - - --------- 0

1 --------- 0.50

2 --------- $1

3 ---------- $1.50

4----------- $2

5----------- $2.50

Answer:

Thank you so much izabellarobb9182

Step-by-step explanation:

Answer:

1920

Step-by-step explanation:

Nina can type 128 words is 4 minutes. At this rate, how many words can Nina type in an hour?

60 divided by 4 is 15

15x128= 1920

Answer:

7 y /5

Step-by-step explanation: