can someone help with 9-12 please ?

Answer:

I think there's 502

Step-by-step explanation:

if this is a olunomical question that should be it I believe, because you have to write in standered form then when it equals zero, then factor it

Answer:

B) 4y=3x-1

Step-by-step explanation:

4y=3x-1

They both have a slope of 3/4, which makes them parallel.

Consider the expression 4(8x + 5)

Complete 2 descriptions of the parts of the expression.

1. The entire expression is the product of 2 factors.

2. On its own, (8x + 5) is a sum with 2 terms.

Answer:

Use the SINE RULE:

\( \frac{a}{ \sin( \alpha ) } = \frac{b}{ \sin( \beta ) } \)

\( \frac{6}{ \sin(60) } = \frac{x}{ \sin(90) } \)

\(x = \sin(90) \times \frac{6}{ \sin(60) } \)

\(x = 6.93\)

If you start at (0,-4) and you move left 1 unit and right 4 units, you end at (3, -4)

From the question, we have the following parameters that can be used in our computation:

Start = (0, -4)

Also, we have

You move left 1 unit and right 4 units

Mathematically, this can be expressed as

(x, y) = (x - 1 + 4, y)

Substitute the known values in the above equation, so, we have the following representation

Endpoint = (0 - 1 + 4, -4)

Evaluate the expression

Endpoint = (3, -4)

Hence, the endpoint is (3, -4)

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Answer: 2/5

Step-by-step explanation:

The area of the cross-section would be the area of a square with side length of 3 inches, which is 3 x 3 = 9 square inches.

A cube is a three-dimensional geometric shape that has six square faces of equal size and angles, 12 edges of equal length, and eight vertices of equal distance from the center of the cube. A cube is a special case of a rectangular parallelepiped in which all the edges are equal in length.

To divide a cuboid into two cubes, we need to make sure that the dimensions of the cuboid are multiples of the side length of the cubes.

Since the side length of each cube is 3 inches, we can divide the height of the cuboid (which is 8 inches) into two parts, each measuring 4 inches. The base of each cube would then be a square with side length of 3 inches, which means the area of each cube's base is 3 x 3 = 9 square inches.

To find the area of the cross-section, we need to determine which face of each cube will be exposed after dividing the cuboid. Since the cuboid was divided into two cubes, we can assume that the cross-section will be a square with side length of 3 inches (the same as the side length of each cube).

Therefore, the area of the cross-section would be the area of a square with side length of 3 inches, which is 3 x 3 = 9 square inches.

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Answer:

it is option A

Step-by-step explanation:

Answer:

these are your basic one step equations you should be able to find the answer by just simply looking at it but if you take the number on the left side of the x and divide that both sides you'll get x by itself and you'll find the answer for x

Answer: To calculate the amount of canvas needed for one tent, we need to calculate the total surface area of the tent. The tent consists of two parts: the cylindrical lower part and the conical upper part.

The surface area of the cylindrical part can be calculated as follows:

The base area of the cylinder = π × r² = π × 2.8² ≈ 24.61 m²

The lateral area of the cylinder = 2 × π × r × h = 2 × π × 2.8 × 3.5 ≈ 54.99 m²

So, the total surface area of the cylindrical part is the sum of the base area and lateral area, which is:

Total surface area of cylindrical part = 24.61 + 54.99 ≈ 79.60 m²

The surface area of the conical part can be calculated as follows:

The slant height of the cone = √(r² + h²) = √(2.8² + 2.1²) ≈ 3.44 m

The lateral area of the cone = π × r × slant height = π × 2.8 × 3.44 ≈ 24.12 m²

So, the total surface area of the conical part is the sum of the base area and lateral area, which is:

Total surface area of conical part = 24.61 + 24.12 ≈ 48.73 m²

Therefore, the total surface area of one tent is:

Total surface area of one tent = 79.60 + 48.73 ≈ 128.33 m²

To make 1500 tents, the total amount of canvas required is:

Total amount of canvas required = 1500 × 128.33 ≈ 192,495 m²

The cost of the canvas is given as Rs 120 per m². Therefore, the total cost of the canvas required to make the tents is:

Total cost of canvas = 192,495 × 120 ≈ Rs 23,099,400

As 50 schools have decided to share the expenditure equally, the amount shared by each school will be:

Amount shared by each school = Total cost of canvas / 50

Amount shared by each school = 23,099,400 / 50

Amount shared by each school ≈ Rs 461,988

Therefore, each school will have to contribute approximately Rs 461,988 to set up the tents.

Step-by-step explanation:

Answer:

the answer depends on the inequality symbol; if the symbol is < or >, points on the line are not solutions

if the symbol is ≤ or ≥ then points which lie on the line are solutions

Step-by-step explanation:

Answer:  \(\displaystyle \frac{1}{9(1-3x)^{3}}+C\)

Where C is a constant.

========================================================

Explanation:

Apply u-substitution

\(u = 1 - 3x\\\\\frac{du}{dx} = -3\\\\du = -3dx\\\\dx = -\frac{du}{3}\\\\\)

So,

\(\displaystyle \int \frac{dx}{(1-3x)^4} = \int \frac{dx}{(1-3x)^4}\\\\\\\displaystyle \int \frac{dx}{(1-3x)^4} = \int (1-3x)^{-4} \ dx\\\\\\\displaystyle \int \frac{dx}{(1-3x)^4} = \int (u)^{-4} \ \left(-\frac{du}{3}\right)\\\\\\\displaystyle \int \frac{dx}{(1-3x)^4} = -\frac{1}{3}\int (u)^{-4} \ du\\\\\\\)

which further leads to

\(\displaystyle \int \frac{dx}{(1-3x)^4} = -\frac{1}{3}\left[\frac{1}{1+(-4)}u^{-4+1}+C\right]\\\\\\\displaystyle \int \frac{dx}{(1-3x)^4} = -\frac{1}{3}\left[-\frac{1}{3}u^{-3}+C\right]\\\\\\\displaystyle \int \frac{dx}{(1-3x)^4} = -\frac{1}{3}\left[-\frac{1}{3}(1-3x)^{-3}+C\right]\\\\\\\displaystyle \int \frac{dx}{(1-3x)^4} = \frac{1}{9(1-3x)^{3}}+C\\\\\\\)

Don't forget about the +C at the end.

Answer:20

Step-by-step explanation:this is wrong

Answer:

40

Step-by-step explanation:

subtract median of dogs and median of cats

Answer:

the correct answer is 4/10

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Range is the distance between the biggest and smallest numbers in a set

Answer:

4.

Step-by-step explanation:

the difference means -.

between a number means use a variable (x) to substitute. so now you have the difference between x and 6 is to. is just means equals so you would set it up like this 6-x=2. you can make this easier by just asking yourself. what number plus 2 equals six? the answer would be 4. 4+2=6-->6-4=2.

Answer:

A) angle ACD

B) angle CBA

C) angle ACB

D) angle EBD and angle DBA

E) MDB and CDA

F)DBA

Step-by-step explanation:

Insta: lankey.t

Answer:

9/12 = 12/16 = 3/4

Scale Factor "3/4"

Step-by-step explanation:

Answer:

The entire clock measures 360 degrees. As the clock is divided into 12 sections. The distance between each number is equivalent to 30 degrees (360/12)

I hope this helps you!

Answer:

-3 I believe

Step-by-step explanation:

why dose the answer have to be 20+ letters

Answer:

-3

Step-by-step explanation:

To find y, plug in -12 for x in the y=1/4x equation. Multiply -12 by 1/4 (or divide -12 by 4) and you get -3.

The significance of the quoted text is to illustrate the less privileged in an overwhelmingly crowded and disordered chronological reality.

Quote means to cite something as a form of proof. It has several other senses as a verb and a noun. It should be noted that to quote something or someone is to repeat the exact words they said or to recite the exact words written in a book.

Great speakers often quote other inspiring people when making speeches. When you quote, you include the words and ideas of others in your text exactly as they have expressed them.

You signal this inclusion by placing quotation marks (“ ”) around the source author's words and providing an in-text citation after the quotation.

In this case, the significance of the quoted text is to illustrate the less privileged in an overwhelmingly crowded and disordered chronological reality. A quotation is the repetition of a sentence, phrase, or passage from speech or text that someone has said or written.

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Answer:

11

Step-by-step explanation:

i don't know

3x3=6

6-2=4.

Thats the answer!!! yayayayayayayayaya

Answer:

7×10^3

Step-by-step explanation:

i think this is right

The equation of line is y = -4x + 100 and the temperature of the coffee after 10 minutes is given by A = 60°C

The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept

And y - y₁ = m ( x - x₁ )

y = y-coordinate of second point

y₁ = y-coordinate of point one

m = slope

x = x-coordinate of second point

x₁ = x-coordinate of point one

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

Given data ,

Let the temperature be represented as y

Let the number of minutes be represented as x

Now , the initial temperature is 100°C

Let the equation of line be represented as A

Now , the value of A is

Let the first point be P ( 0 , 100 )

Let the second point be Q ( 5 , 80 )

Now , the slope of the line between the points is ( y₂ - y₁ ) / ( x₂ - x₁ )

Substituting the values in the equation , we get

Slope m = ( 100 - 80 ) / ( 0 - 5 )

Slope m = 20 / -5

Slope m = -4

Now , the equation of line is y - y₁ = m ( x - x₁ )

Substituting the values in the equation , we get

y - 100 = -4 ( x - 0 )

y - 100 = -4x

Adding 100 on both sides of the equation , we get

y = -4x + 100

Now , when x = 10 minutes ,

y = -4 ( 10 ) + 100

y = -40 + 100

y = 60°C

Hence , the equation is solved and temperature after 10 minutes is 60°C

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Answer:

0.51cm/s

Step-by-step explanation:

Area of a circle A = πr²

r is the radius

Rate of change of area is expressed as;

dA/dt = dA/dr • dr/dt

dA/dr = 2πr

radius r = 77cm

dA/dt = 79cm²

Get dr/dt

Substitute the given values into the formula

79 = 2π(77)•dr/dt

79 = 154dr/dt

dr/dt = 79/154

dr/dt = 0.51cm/s

Hence the rate of change of the radius is 0.51cm/s

Answer:

Expressions A, C, D are equivalent

Step-by-step explanation:

Equivalent expressions:

Two expressions are equivalent if they give the same result. So

Option A:

3(2 + 4x)  =3*2 + 3*4x = 6 + 12x

So equivalent

Option B:

3(2 + 6x) + 2x = 3*2 + 3*6x + 2x = 6 + 18x + 2x = 6x + 20. So not equivalent

Option C:

5(1+2x) + 1 + 2x = 5*1 + 5*2x + 1 + 2x = 5 + 10x + 1 + 2x = 6 + 12x.

Equal, so equivalent

Option D:

7*(1+2x) - 2x - 1 = 7*1 + 7*2x - 2x - 1 = 7 + 14x - 2x - 1 = 6 + 12x

Equal, so equivalent.

Option E:

7*(1+2x) + 2x - 1 = 7*1 + 7*2x - 2x - 1 = 7 + 14x + 2x - 1 = 6 + 16x

Different, so not equivalent.