Someone help me !!!!!!

Answer:

The vertex of the graph of the equation $y = 3x^2 - 6x + 7$ is the point $(1, 4)$.

Step-by-step explanation:

The vertex of the graph of a parabolic function $y = ax^2 + bx + c$ is given by the formula:

$x = \frac{-b}{2a}$

where a, b, and c are constants and x is the x-coordinate of the vertex.

For the given equation $y = 3x^2 - 6x + 7$, we have a = 3, b = -6, and c = 7. So, we can use the formula to find the x-coordinate of the vertex:

$x = \frac{-b}{2a} = \frac{-(-6)}{2(3)} = \frac{6}{6} = 1$

So, the x-coordinate of the vertex is 1. To find the y-coordinate, we substitute the value of x back into the original equation:

$y = 3(1)^2 - 6(1) + 7 = 3 - 6 + 7 = 4$

So, the vertex of the graph of the equation $y = 3x^2 - 6x + 7$ is the point $(1, 4)$.

Answer:

[tex]\huge\boxed{\sf Area = 32 \ ft.^2}[/tex]

Step-by-step explanation:

Given that, the space is triangular.

So,

[tex]\displaystyle Area \ of \ triangle = \frac{1}{2} (Base)(Height)[/tex]

Here,

Base = b = 10 ft.

Height = h = 6.4 ft.

So,

[tex]\displaystyle Area = \frac{1}{2} (10)(6.4)\\\\Area = (5)(6.4)\\\\Area = 32 \ ft.^2\\\\So, she \ needs \ a \ carpet \ of \ 32 \ ft.^2\ to \ cover \ the \ area.\\\\\rule[225]{225}{2}[/tex]

Answer:

Step-by-step explanation:

yes  mutiply 3x3

Answer:

4

Step-by-step explanation:

Answer:

i think its 35

Step-by-step explanation:

but im not really sure

Answer:V

Step-by-step explanation:

because

Answer:

[tex] \frac{2}{1365} [/tex]

or

[tex]1.47[/tex]

Answer:

[tex]\frac{8}{5460} =\frac{2}{1365}=0.00146520147[/tex]

Step-by-step explanation:

8/4 = 2

5460/4 = 1365

[tex]\frac{8}{5460} =\frac{2}{1365}=0.00146520147[/tex]

Answer: C and D.

Step-by-step explanation:

Answer:

Step-by-step explanation:

1 roll for $1
2 rolls for $1.5
3 rolls for $2
4 rolls for $2.5
5 rolls for $3

Answer: hope this helps ♡

1 roll(s) will cost $0.6.

Step-by-step explanation:

Unitary method: Diving the number that u want to find out over the number that's already known. (idunno if ur gonna understand this)  :)

5 rolls = $3

1 roll = $?

⅗ = 0.6

1 roll = $0.6

(double check: 0.6×5=3)

Answer:

Step-by-step explanation: use a protractor and make a dot in the hole in the center of the line in the protractor. then find 55 on the protractor and draw a straight line from the dot you made to the number 55. if there are no numbers on the protractor, then draw a right angle (90 degrees) and draw a line through it. (45 degrees). Then draw a line through the middle of it, but make it closer to 45 degrees. (You can draw more placement lines if it helps you)

Answer:

Step-by-step explanation:

As 55 is not divisible by 15, we cannot construct 55 degree angle with the help of a compass or a ruler.

So, we need to use the protractor.

Here's how:

Step 1: Draw a random line.

Step 2: Place Protractor on the line as shown.

Step 3: Point the 55 degrees

Step 4: Draw a line towards it.

Hope it helped. Pls mark me the BRAINLIEST!

Answer: D

Step-by-step explanation:

remember look for the 'x' then you look for the 'y'

left and right first (x) then up and down (y)

(x,y)

Answer:

The answer is D!

Step-by-step explanation:

1.[tex]184 cm^{3}[/tex]            2. [tex]187cm^{3}[/tex]         3.[tex]235 ft ^{3}[/tex]

In the first question firstly, We will find the volume of the hemisphere with a diameter of 8 cm.

We will find the volume of the hemisphere by using the formula that is,[tex]2\pi r ^{3}/3[/tex].

Which gives us, [tex]134.09 cm^{3}[/tex].

Now we will find the volume of the inverted cone with the formula,[tex]\pi r^{2}h/3[/tex].

Which gives [tex]50.28 cm^{3}[/tex].

Adding both give [tex]184.57 cm^{3}[/tex].

Rounding [tex]184 cm^{3}[/tex]

In the second question firstly, We will find the volume of the hemisphere with a radius of 3cm.

we will find the volume of the hemisphere by using the formula that is,    [tex]2\pi r^{3} /3[/tex].

Which gives us, [tex]56.57 cm^{3}[/tex].

Now we will find the volume of the cylinder with the formula, [tex]\pi r^{2}h[/tex].

Which gives [tex]132 cm^{3}[/tex].

Adding both give [tex]188.57 cm^{3}[/tex].

Rounding [tex]187 cm^{3}[/tex].

In the last question, we will find the volume of the cone with a radius and height of 7ft.

We will find the volume of the cone by using the formula that is, [tex]\pi r^{2}h/3[/tex].

Which gives us, [tex]102.66ft^{3}[/tex].

Now we will find the volume of the cylinder with the formula, [tex]\pi r^{2}h[/tex].

Which gives [tex]132ft^{3}[/tex].

Adding both give [tex]234.66ft^{3}[/tex].

Rounding [tex]235ft^{3}[/tex] .

Read more about the volume of 3D shapes: https://brainly.com/question/12105152

Answer:

the value of z is 89

valu of x is 3

hope it helps

Answer:

1. Cannot be side lengths

2. Can be side lengths

3. Can be side lengths

4. Cannot be side

Step-by-step explanation:

it can be side lengths when the largest side is equal to the sum of the two other

Answer:

7(2/3q+9)

14/3q+63

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

each task is solved with 2 different methods.. since i dont know what your teacher expects from you

Answer:

8.5

Step-by-step explanation:

1 hour = $24

x hour = $204

= 204/24

= 8.5

Hope this helps

Answer:

1. 8.2296 m

2. 113.398 g

3. 354.882 ml

4. 4.828032 km

5. 10.8862 kg

6. 26.4979 g

Step-by-step explanation: If you have a textbook there will be a way to change something into something. There is also one on the internet.

Answer: 2/5 + 1/10

the probability of the spinner landing in 1 or 4 is 5/10 = 1/2.

2/5 + 1/10 = 1/2.

Answer:

Step-by-step explanation:

Something to those numbers equals 90 degrees so I think plug in 36 divided by 90 and then you will get your answer I did this before but it has been a while if you get it wrong my apologies.

Answer: I do believe that the answer is 7.25 ft squared i hope that im right and this helps you

Step-by-step explanation:

add 3.5+3.5=7

add 7+0.25=7.25ft sqaured

Answer:

Step-by-step explanation:

the anwer is  x=3
Step-by-step explanation:

Answer:

6

Step-by-step explanation:

[tex]xy - 4x [/tex]

[tex](x \times y) - (4 \times x)[/tex]

You replace where x to 2 and where y is to 7

[tex](2 \times 7) - (4 \times 2)[/tex]

[tex]14 - 8 = 6[/tex]

Answer: 40

Step-by-step explanation:

9 carrots in 5 plates is 45. 12 carrots in salad and 23 in the plastic bag. Add 45, 12 and 23 and get 80. Divide 80 by 2 and get 40.

Answer:

Step-by-step explanation:

2(8+21)

Answer:

- 4y - 7

Step-by-step explanation:

We know that,

( - ) × ( - ) = ( + )

( - ) × ( + ) = ( - )

( + ) × ( + ) = ( + )

Accordingly, let us solve the above expression.

- 4y - 4 + ( - 3 )

Solve the brackets.

- 4y - 4 - 3

Combine like terms.

- 4y - 7

Answer:

[tex] \sf \: -4y - 7 [/tex]

Step-by-step explanation:

Now we have to,

→ Simplify the given expression.

The expression is,

→ -4y - 4 + (-3)

Let's simplify the expression,

→ -4y - 4 + (-3)

→ -4y - 4 - 3

→ -4y - (4 + 3)

→ -4y - (7)

→ -4y - 7

Hence, the answer is -4y - 7.

Answer:25 game tickets for $10

Step-by-step explanation:

0.50 * 25 = $12.5

so the second option is more expensive so the first one is correct.

Answer:

D. r < 53

Step-by-step explanation:

Answer:

B. 35 x + 75 y = 27,750. 25 x + 60 y = 21,750

Step-by-step explanation:

Concert:

- Total: $27,750

- Balcony seats: $35

- Floor seats: $75

Theatrical production:

- Total: $21,750

- Balcony seats: $25

- Floor seats: $60