Please help me! I'll give brainliest!​

Answer:

This is a quadratic function

write it in the form [tex]a(x-h)^2+k[/tex]

h and k is the vertex, meaning the coordinate that is lowest or highest point depending on where the function is...pointing. You can see that the function is point up, so h is the x coordinate is at the bottom. the vertex coordinate is (9, -4), im sure you know why. In the formula, h means the x and k is the y. So that means that the h is 9 and k is -4.

now the think will be  [tex]a(x-9)^2-4\\[/tex]

now you find a by plugging one of the point, you can take the point (12, 4)

[tex]a(12-9)^2-4=4\\9a=8\\8/9=a\\[/tex]

so the equation

[tex]8/9 (x-9)^2 -4[/tex]

Step-by-step explanation:

Answer:

x= -13, y= -7

Step-by-step explanation:

Answer:

8 and 5

Step-by-step explanation:

Answer:

Step-by-step explanation:

What are the factors of 40? 8 * 5

8 + 5 = 13

To do it algebraically gives you a quadratic:

A + B = 13

AB = 40

A(13 - A) = 40

A2 - 13A + 40 = 0

(A - 8)(A - 5) = 0

A = 8 and B = 5

Answer:

49.0

Step-by-step explanation:

Answer:

72.27 euros

(54.20 X 4) / 3

Answer:

i will say the second one

Step-by-step explanation:

Answer:

Step-by-step explanation:

all of the statements are true

Answer:

$2,003.38

Step-by-step explanation:

Answer:

x:5⁰

y:52⁰

Step-by-step explanation:

triangle:180⁰

the triangleis isoceles triangle so y:52⁰

so B is 72⁰

(14x+6)⁰=(14(5)+6)⁰=72⁰

Answer:

18 cm each side

Step-by-step explanation:

Square has 4 sides. So, 72/4=18

18 cm each side

plz mark me as brainliest.

Answer:

Yes, yes, no, no, yes

Step-by-step explanation:

Answer:

yes ,yes, no ,no, yes here

Answer:6

Step-by-step explanation:

4.75% of 25000 is 1,187.5

Times 6 it's 7,125

Answer:

8 1/3

Step-by-step explanation:

x+(x-1)+(x+2)=29

3x+1=29

3x=28

x=9 1/3

9 1/3-1= 8 1/3

Answer: 13.84

Step-by-step explanation:

The formula is Length x Width (3.46 x 4) Hope this helps!

Answer:

a = 4

Step-by-step explanation:

8 = 5a > - 12

8 + 12 = 5a > - 12 + 12

20 = 5a

20 ÷ 5 = 5a ÷ 5

a = 4

Check:

8 = 5(4) < 12

8 = 20 < 12

It is correct.

Answer:

x = [tex]\frac{8\sqrt{3} }{3}[/tex]

Step-by-step explanation:

Using the sine ratio in the right triangle and the exact value

sin60° = [tex]\frac{\sqrt{3} }{2}[/tex]

sin60° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{4}{x}[/tex] = [tex]\frac{\sqrt{3} }{2}[/tex] ( cross- multiply )

x × [tex]\sqrt{3}[/tex] = 8 ( divide both sides by [tex]\sqrt{3}[/tex] )

x = [tex]\frac{8}{\sqrt{3} }[/tex] × [tex]\frac{\sqrt{3} }{\sqrt{3} }[/tex] ( rationalising the denominator )

x = [tex]\frac{8\sqrt{3} }{3}[/tex]

Answer:

4.4 =x

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

tan theta = opp/ adj

tan 20 = x/12

12 tan 20 = x

4.367642811=x

Rounding to the nearest tenth

4.4 =x

Answer:

4.4 cm

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Trigonometry

Step-by-step explanation:

Step 1: Define

Identify variables

Angle θ = 20°

Opposite Leg = x

Adjacent Leg = 12 cm

Step 2: Solve for x

Answer:

I would say graph D

Step-by-step explanation:

mark me Brainliest if correct

Answer:

d

Step-by-step explanation:

Answer:

[tex]y = x+ 2[/tex] ---- Archie

[tex]y = \frac{3}{2}x + 3[/tex] --- Bailey

[tex]y = \frac{5}{4}x +2[/tex] --- Coco

Step-by-step explanation:

Given

See attachment for the representation

Required

Determine the function (i.e. equation) of each

Archie

Take 2 point from the line of the graph

[tex](x_1,y_1) = (0,2)[/tex]

[tex](x_2,y_2) = (12,14)[/tex]

Calculate slope (m)

[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

[tex]m = \frac{14 - 2}{12 - 0}[/tex]

[tex]m = \frac{12}{12}[/tex]

[tex]m =1[/tex]

Archie's equation is:

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

[tex]y = 1(x - 0) + 2[/tex]

[tex]y = 1(x) + 2[/tex]

[tex]y = x+ 2[/tex]

Bailey

[tex]y = \frac{3}{2}x + 3[/tex] --- Given

Coco

Take 2 point from the table

[tex](x_1,y_1) = (2,4.5)[/tex]

[tex](x_2,y_2) = (6,9.5)[/tex]

Calculate slope (m)

[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

[tex]m = \frac{9.5 - 4.5}{6 -2}[/tex]

[tex]m = \frac{5}{4}[/tex]

Coco's equation is:

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

[tex]y = \frac{5}{4}(x - 2) + 4.5[/tex]

[tex]y = \frac{5}{4}x - \frac{5}{2} + 4.5[/tex]

[tex]y = \frac{5}{4}x - 2.5 + 4.5[/tex]

[tex]y = \frac{5}{4}x +2[/tex]

Answer:

90.03

Step-by-step explanation:

Answer:

(x + 3)

Step-by-step explanation:

a = x^2+ 8x + 15

Factor

a = (x + 5)(x + 3)

if (x + 5) is the length

then (x + 3) is the width

Answer:

32

Step-by-step explanation:

p=sample proportion

p=number of defective parts/size of sample = 4/25

Estimate:

(sample proportion)x(size of population) = (4/25)x(200)=32

fish tested = 5x5=25

fish population = 40x5=200

Answer:

Step-by-step explanation:

A

Answer:

48

Step-by-step explanation:

Because it’s the biggest number

Answer:

I think b?

Step-by-step explanation:

Answer:

157.38

Step-by-step explanation:

if you add all those numbers you will get 1888.59/12= 157.38

Answer: $3,581

Step-by-step explanation:

As she plans to save from her net income, we have to find the net income first:

= Net income - Federal taxes - Social and Medicare taxes

= 33,000 - (33,000 * 20%) - (33,000 * 7.65%)

= $23,875.50

The savings will be:

= Net income * Savings percentage

= 23,875.50 * 15%

= $3,581.325

= $3,581

Answer:

X < 7/2

Step-by-step explanation:

Move the variable to the left, separate into possible cases , solve, find the intersections, find the union, and then you get your solution.

Step-by-step explanation:

Given that:

|2x-7| = 7-2x

⇛2x-7 = 7-2x or -(7-2x)

since |x| = a ⇛ x = a or x = -a

⇛2x-7 = 7-2x or 2x-7 = 2x-7

Shift all variables on LHS and constant on RHS, changing it's sign.

⇛2x+2x = 7+7

Add the values on LHS and RHS.

⇛4x = 14

Shift the number 4 from LHS to RHS.

⇛x = 14/4

Write the fraction in lowest form by cancelling method.

⇛ x = {(14÷2)/(4÷2)}

⇛x = 7/2

There is no solution for negative value

x = 7/2

Please let me know if you have any other questions.