I hate quadratic formula

Step-by-step explanation:

I think the choose 3 (g , h ,f )

Answer:

4

7

4 or 2.5

Step-by-step explanation:

x+2x=3x

12/3=4=x

13+1=14

14/2=7=y

13+/-3=16/10

16/4=4

10/4= 2.5

this one depends wether 3 is negative or positive

Step-by-step explanation:

Okay, the first step is to rewrite this equation in "vertex form." You can search that up but it's basically just (h/k).

y = ( x − 1) 2 + 3

Now, we are going to use the vertex form, "y = a (x - h)2 + k, to get the values of a, h, and k.

By using the form we get 1 for the value a, 1 for the value h, and 3 for the value k.

1 = a

1 = h

3 = k

Becuse the value of a is positive, the parabola opens up!  (A parabola is the U shaped line in a graph, so that opens up.)

Now, we find the vertex (h,k)

which is (1,3)

Now we find the p from the vertex to the focus.  (vertext the top, focus one of the points.)

Follow this formula to find the distance from the vertex to a focus by using this formula

1/4a.

Now we just gonna substitue 1 for a, since we know that 1 equals a above ^

1/4 * 1

Solving that, we got a nice little 1/4.

Next we find the focus

"Find the focus.

The focus of a parabola can be found by adding p to the y-coordinate k if the parabola opens up or down.

(h,k+p)

Substitute the known values of h, p, and k into the formula and simplify.

(1,134)

Find the axis of symmetry by finding the line that passes through the vertex and the focus.

x=1

Find the directrix.

y=114

Use the properties of the parabola to analyze and graph the parabola.

Direction: Opens Up

Vertex: (1,3)

Focus: (1,134)

Axis of Symmetry: x=1

Directrix: y=114

Select a few x values, and plug them into the equation to find the corresponding y values. The x values should be selected around the vertex.

xy−1704132437

Graph the parabola using its properties and the selected points.

Direction: Opens Up

Vertex: (1,3)

Focus: (1,134)

Axis of Symmetry: x=1

Directrix: y=114

xy−17041324"

(Sorry if this is long! But I hope you understand it better now! Thanks for the points!)

Answer:

$6.75 each

Step-by-step explanation:

141.75 decided by the 21 calculators gets a grand total of $6.75 each

Answer:

The one in the bottom right.

Step-by-step explanation:

Answer:

D because mean is the subtraction of the biggest number and the smallest. so 17-8=9

Answer:

I think it's D

I don't know tho

Answer:

it means "plus or minus"

Step-by-step explanation:

hope tht helped

Answer:

56.73 ft

Step-by-step explanation:

Given:

51° (angle)

73ft (hypotenuse)

With the given information use sin to determine the height of the kite.

sin51° = x/73

solve for x (height)

x= 73*sin51°

x= 56.73ft

Answer:

OC=48

RK=100

Step-by-step explanation:

We can use proportions to find both OC and RK.

[tex]\frac{OK}{KY} =\frac{OC}{RY}[/tex]

[tex]\frac{12}{24} =\frac{OC}{96}[/tex]

[tex]24OC=1152[/tex]

[tex]OC=48[/tex]

[tex]\frac{KC}{RK} =\frac{OK}{KY}[/tex]

[tex]\frac{50}{RK} =\frac{12}{24}[/tex]

[tex]12RK=1200[/tex]

[tex]RK=100[/tex]

Answer:

RK = 100

OC = 48

Step-by-step explanation:

Scale factor = 12/24 = 1/2

1/2 RK = 50

RK = 2* 50

RK = 100

1/2 RY = OC

1/2 * 96 = OC

48 = OC

OC = 48

Answer:

x^2+6x+9

Step-by-step explanation:

expand the expression

Answer:

David's height is 57 inches.

Step-by-step explanation:

x/11=55

x=605

x/10=54.8

x=548

605-548=57

Answer:

57 inches

Step-by-step explanation:

undo the problem

55 x 11 = 605

54.4 x 10 = 548

605 - 548 = 57

hope I helped :)

Answer:

C  (n - 15 = 4)

Step-by-step explanation:

This is the answer becuase it can be rewritten as:

n - 4 = 15 (by subtracting 4 from both sides and adding 15 to both sides);

this equation describes the "written" (verbal) equation.

Answer:

Its gonna be 50

Step-by-step explanation:

Answer:

213,987.7 ft2  

Step-by-step ex planation:

Answer:

Solution given:

let the two bags of pickle & chips and be x and y.

according to the question

x+2y=$3.25

again

3x+4y=$7.25 is a second equation.

Answer:

A. 5.25

Step-by-step explanation:

4.5 + 6 = 10.5

15.75 - 10.5 = 5.25

4.5 + 6 + 5.25 = 15.75

Answer:

c^2=a^2+b^2

c is hypothesis b is abase h is a

15^2=x^2 +12^2

225-144 =x^2

81=x^2

x=9

Answer:

1. a - 5 years

2. a × 3 =3a years

3. a + 4 years

4. 2|3×a = 2a|3 years

5. 2×a+3 = 2a+3 years

Answer:

D for the first one and D for the second one.

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

Hello! answer: 105.5

Hope that helps!

75 + 18 + 12.5 = 105.5

Given:

A regular pentagon with side 8 cm and apothem 6 cm.

To find:

The area of the given regular pentagon.

Solution:

The area of a regular polygon is:

[tex]A=\dfrac{n\times s\times a}{2}[/tex]

Where, n is the number of sides of the regular polygon, s is the side length and a is the apothem.

In a regular pentagon the number of sides is 5.

Substituting [tex]n=5,s=8,a=6[/tex] in the above formula, we get

[tex]A=\dfrac{5\times 8\times 6}{2}[/tex]

[tex]A=\dfrac{240}{2}[/tex]

[tex]A=120[/tex]

The area of the regular pentagon is 120 cm². Therefore, the correct option is C.

Answer:

0.615

Step-by-step explanation:

Just round up.

Answer:

I think the answer is 20

Step-by-step explanation:

6x3=18+2=20

Answer:

Kim now has 20 pet fish. This is because if you do (6 x 3) since you said Jan had 6 pet fish and Kim had 3 times as many meaning the six times the three. Then, Kim had got 2 more fish meaning she now had 20 fish in total. The (18 + 2).

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

The square root of 49 is 7

Answer:

The number sentence which states that x is at most 50 is x < 50.

Step-by-step explanation:

Answer: 21.5cm³

Step-by-step explanation: This is your answer there is no way it is incorrect

Answer:

Solution given:

x(w – 1) + (W – 1)

distribute it:

xw-x+w-1

xw+w-x-1

take common from each term

w(x+1)-1(x+1)

take common again

(x+1)(w-1)

the factored form of x(w – 1) + (W – 1) is (x+1)(w-1).