to identify the y-intercept of a quadratic function, would you choose the vertex form or standard form? explain

Answer:

Your answer is B

Step-by-step explanation:

There are 3 kids ages 9-10, so that's the first 3.

There are 10 kids ages 10-11, so that's the second 10.

There are 6 kids ages 11-12, so that's the third 6.

add those kids up and you get 19

Answer:

21

Step-by-step explanation:

I added them together, first the 9-10 year olds and the 11-12 year olds. There were 15, then added on the 13-14 ear olds, making altogether 21 kids over the age of 8

Answer:

Option (4)

Step-by-step explanation:

Proportional relationship means,

y ∝ x

y = kx

[tex]k=\frac{y}{x}[/tex]

Here, k = proportionality constant

Therefore, if the graph of a line passes through the origin (0, 0) table will represent the proportional relationship.

From table 1,

For a point (1, 2)

[tex]k=\frac{2}{1}=2[/tex]

For another point (3, 2)

[tex]k=\frac{3}{2}=1.5[/tex]

In both the cases 'k' is not same of constant.

Therefore, table (1) is not proportional.

For table (2),

Line passes through (2, 0).

That means there is a x-intercept → (2, 0)

Therefore, table doesn't represent a proportional relationship.

For table (3),

Line passes through a point (0, 1)

It means given line has a y-intercept → y = 1

Therefore, table doesn't represent a proportional relationship.

For table (4),

Line of this table passes through two points (1, 3) and (2, 6)

[tex]k=\frac{3}{1}=3[/tex]

[tex]k=\frac{6}{2}=3[/tex]

Therefore, proportionality constant for the given table is 3.

Now we can graph table (4).

Answer:   two

Step-by-step explanation:  six

Answer:

True, since integers are whole numbers that go from negative infinite all the way up to positive infinite. Which means it doesn't have a start or an end

Hope this helps!

Answer:

True

Step-by-step explanation:

The list of negative integers goes on without bounds,

Answer:

The answer is B It is located on the Quadrant ll

Step-by-step explanation:

have a good day :)

Answer:

Centre: [tex](\frac{1}{2} ,2)[/tex]

Radius = [tex]2[/tex]

Step-by-step explanation:

General formula for a circle: [tex](x-a)^2+(y-b)^2=r^2[/tex], where [tex]r=[/tex] the radius of the circle and [tex](a,b)[/tex] is the centre of the circle.

To find the centre and radius of the circle we should re-write the given equation in the form of the general formula.

So, put the terms with the same variables together:

[tex]4x^2-4x+4y^2+16y+1=0[/tex]

We can see that there is a common factor of [tex]4[/tex], so let's simplify by dividing by [tex]4[/tex]:

[tex]x^2-x+y^2+4y+\frac{1}{4} =0[/tex]

Here we can get it into the general formula by completing the square.

We do this by turning a quadratic with form [tex]ax^2+bx+c=0[/tex] into the form [tex](x-d)^2-e+c=0[/tex], where d is half of the coefficient of [tex]x[/tex], e is [tex]d^2[/tex] and c is the constant of the quadratic.

So let's re-write the equation of the circle:

[tex](x-\frac{1}{2} )^2-\frac{1}{4} +(y-2)^2-4+\frac{1}{4} =0[/tex]

Simplify: [tex](x-\frac{1}{2} )^2 +(y-2)^2-4} =0[/tex]

Now we can see that it's very similar to the general equation and all we have to do is bring the [tex]4[/tex] over to the right side.

[tex](x-\frac{1}{2} )^2 +(y-2)^2} =4[/tex]

So, now we can find the radius and centre.

[tex](a,b) = (\frac{1}{2} ,2)[/tex]

[tex]r^2=4, r=2[/tex]

Answer:

Your answer is $24

Step-by-step explanation:

5*4 is 20, so all that you have to do it 6*4

Answer:

138

Step-by-step explanation:

Answer:

C. 138

Step-by-step explanation:

Substitute the values for their given variables:

6(5)² - 5(4) + 8 ⇒ 150 - 20 + 8 ⇒ 138

Answer:

c

Step-by-step explanation:

Answer: C. 1/3π(7.52)(19) – 1/3π(3.52)(8)

Step-by-step explanation:

took the test and got 100

The expression that represents the volume of the frustum is:  1/3π(7.5²)(19) - 1/3π(3.5²)(8).

Volume of a frustum = Volume of bigger cone - volume of smaller cone = 1/3πR²H - 1/3πr²h

Given the following dimensions:

Applying the volume formula, we have:

Volume of the frustum = 1/3πR²H - 1/3πr²h = 1/3π(7.5²)(19) - 1/3π(3.5²)(8)

Thus, the expression that represents the volume of the frustum is:  1/3π(7.5²)(19) - 1/3π(3.5²)(8).

Learn more about volume of frustum on:

https://brainly.com/question/1273042

Answer:

y=70

Step-by-step explanation:

y=-60cos(π/30 (15))+70

y=-60cis(π/2)+70

y=-60•0+70

y=70

Answer:

0.14 I am baka and gave this person the wrong answer so umm yeah.

Step-by-step explanation:

Answer:

9.8 to 1

Step-by-step explanation:

weight : mass

196 : 20 divide both sides by 2

98: 10 divide both sides by 10

9.8 : 1

Answer:

The Volume Of A Toy Box. (A cube)

Answer:

Volume of a toy box is correct.

I took the Quiz L:)

Answer:

B, 600

I've attached a graph to help ya!

Hope this helps!

Answer:

2.1

-2.2

-2.3

…

-2.9

-2.01

Answer:

Solution given:

100( x + 5 ) = 200 ( 6 - x)

distributing

100x+500=1200-200x

100x+200x=1200-500

300x=700

x=[tex] \frac{700}{300} [/tex]

x=[tex] \frac{7}{3} [/tex]

:.x=[tex] \frac{7}{3} [/tex] or[tex] 2\frac{1}{3} [/tex]

Answer:

324π

Step-by-step explanation:

Total Surface Area of a cone =πrl+πr²

πx 12 x 15  +  π x (12²)

180π + 144π = 324π

Answer:

The slope is undefined.

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-3-2)/(6-6)

m=-5/0

undefined

Answer:

328 in²

Step-by-step explanation:

2(12 in x 10 in )+ 2(2 in x 10 in) + 2(12 in x2 in) =

240 in² + 40 in² + 48 in² = 280 in² + 48 in² = 328 in²

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

Step-by-step explanation:

circle A is

x²+y²+6x-4y-12=0

x²+6x +y²-4y =12

think (a+b)² = a²+2ab+b² we have a=x, b= 3

and (a-b)² = a²-2ab+b² so we have a=y, b=2

x²+6x +9 +y²-4y+4 = 12-9-4

(x+3)² +(y-2)²= -1

compare to the general equation of a circle (x-h)²+(y-k)² =r²

the center is at (-3,2) and the radius is √-1 =i

Circle B has center (0, -4) and radius 3 so the equation is

(x-0)²+(y-(-4))² =3²

x² +(y+4)² = 9

point (√8, -3) is on the circle if it verifies the equation

√8² +(-3+4)² = 9

8+1 =9 true so the point is on the circle

Circle A and circle B are not similar because they do not have the same center and radius

Answer:

29 Mbps

Step-by-step explanation:

the scan rate of Dave's antivirus =

203 Mb / 7 s = 29 Mb/s or 29Mbps

Answer:

B) Multiply the number of hours by 2

Step-by-step explanation:

Answer:

O C. 0

Step-by-step explanation:

What is the sum of 15 and its additive inverse?

In Mathematics, the additive inverse of a number is defined as the number that when it is added to a specific number equals 0

From the above question, the additive of 15 = -15

Therefore, the sum of 15 and its additive inverse is calculated as:

15 + -15

= 15 - 15

= 0

Therefore, Option C is the correct option

Answer:

$48 deposited

Step-by-step explanation:

84 times 1/3 = 28

80 times 1/4 = 20

28 + 20 = 48

Answer:

Answer

A.

C = 22 h + 35

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