7x + 2y = 4
y = x + 1
Solve the system of equations.
A. (1/3, 4/3)
B. (2/9,11/9)
C. no solution

Answer:

(P-12)/2 = L

Step-by-step explanation:

1. Start off with an equation in terms of perimeter

P = (2)(6) + (2)(L)

2. Multiply the two and the six

P = 12+ (2)(L)

3. Move the terms around so only "L" is on one side

(P-12)/2 = L

hope this helped :)

Answer:

l = P/2 - 6

Step-by-step explanation:

The perimeter of a rectangle is 2*length + 2* width, or 2l + 2w.

So, the equation is P = 2l + 2*6. This simplifies to P = 2l + 12.

To isolate l, you subtract 12 from both sides, and divide both sides by 2.

This will look like [tex]l = \frac{P}{2} - 6[/tex].

$15 dollars per adult

$9 per child

We have 4 adults and 5 children.

Adults: 15 x 4 = $60

Children: 9 x 5 = $45

$60 + $45 = $105

Answer: $105

Answer:

26 square inches

Step-by-step explanation:

To calculate the area of the polygon, find the area of 5*10 = 50. Now subtract the area of each rectangle cut out of the polygon. There are two rectangles of the same size measuring 3 by 4. They have an area of 3*4 = 12.

So 50 - 12 - 12 = 26

Answer:

26 square inches

Step-by-step explanation:

[tex] - {x}^{2} + 9 - 3 {x}^{2} - 11x + 4 \\ = - 4 {x}^{2} - 11x + 13[/tex]

2nd answer

Answer:

Option B. -4x² - 11x + 13

Step-by-step explanation:

Given polynomials are ( -x² + 9 ) and ( -3x² - 11x + 4 )

We have to add them.

( -x² + 9 ) + -3x² - 11x + 4 )

-x² + 9 - 3x² - 11x + 4

Now we will collect similar terms

( -x² - 3x² ) - 11x + ( 9 + 4 )

-4x² - 11x + 13

Therefore, option B is the answer.

Answer:

calculate volume by l×b×h

Answer: [tex]57,512,581.63miles^2[/tex]

Step-by-step explanation:

Substitute the value of the radius of the Earth into the formula given in the problem, where r is the radius, to obtain the surface area of the Earth:

[tex]S=4(3.14)r^2\\S=4(3.14)(3,960miles)^2\\S=196,960,896miles^2[/tex]

The problem says that the dry land forms 29.2% of the Earth’s surface, therefore, multiply the surface area by [tex]\frac{29.2}{100}=0.292[/tex]

Threfore, the area of dry land is the following:

[tex]S_{land}=(0.292)(196,960,896miles^2)=57,512,581.63miles^2[/tex]

Final answer:

To find the area of the dry land on Earth, first, calculate the Earth's total surface area with the formula S=4(3.14)r². Given a radius of 3960 miles, this results in about 197,920,640 square miles for the total surface. Multiplying this by 29.2% (or 0.292) gives approximately 57,780,666.88 square miles of dry land.

Explanation:

The question asks for the area of the dry land on Earth, given Earth's radius and the percentage of its surface that is dry land. To find this, first calculate the total surface area of the Earth using the formula S = 4(3.14)r², where r is the radius of the Earth (3960 miles). The formula accounts for the surface area of a sphere. After calculating the total surface area, we then calculate 29.2% of this area to find the dry land's surface area.

Step-by-Step Calculation:

Calculate the total surface area of the Earth: S = 4(3.14)(3960)²

Find the area of the dry land by multiplying the total surface area by 29.2% (or 0.292).

Using the steps above:

S = 4(3.14)(3960)² = 197,920,640 square miles (approx.) as the total surface area.

Area of dry land = 197,920,640 * 0.292 = 57,780,666.88 square miles (approx.).

Answer:

A closed, two-dimensional or flat figure is called a plane shape. Different plane shapes have different attributes, such as the numbers of sides or corners. A side is a straight line that makes part of the shape, and a corner is where two sides meet. for 7 took me ten years #8 circle has 1 curved side but no corners. – sphere, cube, cuboid, cylinder, cone, square based pyramid, triangular based pyramid.

Step-by-step explanation:

hope this help i also need help with this but i already did for home work please hope for brainlist nobody ever gives me...

Answer: 12 feet

Step-by-step explanation: look at the bottom length of the rectangle, it is 10 feet, the missing length of the rectangle should be 10 ft as well. we already know that two of the sides are 3 so we can do 3+3+x=10, x=4. the base of the triangle is 4. We can now use the formula for area of the triangle, 1/2 base*height so 1/2 *6*4= 12 feet, Hope this helps!

Step-by-step explanation:

6 percent of 350 is 21. 21 plus 350 is 371, therefore the answer is 371.

Brainliest? :)

The population of beetles a week later is 371.

= 6% of 350 + 350

= 21 + 350

= 371

Learn more: https://brainly.com/question/9122916?referrer=searchResults

Answer:

Your other $1 went to yourself.

Answer:

Step-by-step explanation:

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.

A cylinder has diameter 34 m and height 27 m. A label at bottom states drawing not to scale.

Find the volume of the cylinder. Use 3.14 for  

π

.

please show your answer in steps

Answer:

The expression would be g+12

Step-by-step explanation:

Technically you are adding his age right now, G, and 12 more years. So an expression that can show how old he will be in 12 years is G+12.

Answer:

V = 90 Cubic Feet

Step-by-step explanation:

The volume of the Rectangular Prism is Given as

The product of the Area of Base and The height.

We are given that Area of Base = 18 sq ft

And the Height is 5 ft

Hence as per the formula we have discussed

Volume = 18 x 5

= 90

The volume = 90 Cubic ft

Answer: C

Step-by-step explanation:

1 ml = 0.001 l

1 l = 1000 kl

Answer:

Answer is C.

...and could you help me with my question please?

https://brainly.com/question/12407929

ANSWER:  

2 and 1/4

Step-by-step explanation:

Answer:

Three points determine a plane

Step-by-step explanation:

Answer:

its (1,3)

Step-by-step explanation:

this is a bit of bad explaining but if you draw a graph you can find it, the verticle intercept is 0,2 if you wanted to know that. and also since the answers are there you could try them out so like 3=2+1, that works, and kinda like that

The correct expression that represents  the quantity x minus 3 divided by y  is: C) [tex]\( \frac{x - 3}{y} \)[/tex]

To solve the given mathematical problem, we need to translate the verbal expression into a mathematical one. The phrase  the quantity x minus 3  indicates that we should subtract 3 from x, which gives us [tex]\( x - 3 \)[/tex]. Then, the word  divided  tells us that this quantity should be divided by y, which can be represented mathematically as [tex]\( \frac{x - 3}{y} \)[/tex].

Let's examine the options provided:

A) [tex]\( x -3y \)[/tex]

This option represents the expression x minus 3 times y, which is not the same as the quantity x minus 3 divided by y.

B) [tex]\( yx -3 \)[/tex]

This option represents the expression y times x minus 3, which is also not the same as the quantity x minus 3 divided by y.

C) [tex]\( \frac{x - 3}{y} \)[/tex]

This option correctly represents the quantity x minus 3 divided by y, which is what we are looking for.

D) [tex]\( yx - 3 \)[/tex]

This option is similar to option B and represents the expression y times x minus 3, which again is not the same as the quantity x minus 3 divided by y.

Therefore, the correct answer is option C, which correctly represents the division of the quantity x minus 3 by y.

The complete question is-

Write the expression: the quantity x minus 3 divided by y.

A) x - 3/y

B) y/x - 3

C) x - 3/y

D) y/x - 3

Answer:

14 notes overall

Step-by-step explanation:

well 2 are in a quarter and there are four in a half note and there are 8 in a full

so

4 + 2 is 6

and 8+ 6 is 14

so 14 notes overall

Answer:

18

Step-by-step explanation:

The given fractions are:

[tex]\frac{4}{9},\frac{2}{3} ,\frac{1}{6},-2\frac{1}{2}[/tex]

We can change the mixed number to a proper fraction to get;

[tex]\frac{4}{9},\frac{2}{3} ,\frac{1}{6},-\frac{5}{2}[/tex]

Janessa needs to find the least common multiple of the denominators.

The denominators are; [tex]9,3,6,2[/tex]

We can express each of the denominators as product of primes.

[tex]9=3^2[/tex]

[tex]3=3[/tex]

[tex]6=2\times3[/tex]

[tex]2=2[/tex]

The least common multiple of these numbers is the product of the highest powers common to all the numbers.

The LCD is [tex]2\times3^2=18[/tex]

Answer:

the answer is 18

Step-by-step explanation:

9 x 2= 18

3 x 6 = 18

6 x 3 = 18

2 x 9 = 18

To find the total number of minutes spent reading and playing games, add the time spent reading and the time spent playing games.

To find the total number of minutes spent reading the book and playing games, we can add the time spent reading and the time spent playing games. First, we spent 40 minutes reading the book. Then, we played 3 games, and each game took 10 minutes to play. So, the total time spent playing games is 3 games × 10 minutes/game = 30 minutes. Finally, we can add the time spent reading and the time spent playing games: 40 minutes + 30 minutes = 70 minutes.

https://brainly.com/question/28971766

#SPJ12

To find the total number of minutes spent reading the book and playing games, you can multiply the duration of reading by 1, multiply the number of games played by the duration of each game, and then add the products together. In this case, the total number of minutes would be 70.

To find the total number of minutes spent reading the book and playing games, you can follow these steps:

In this case, the calculation would be: 40 minutes (reading) + (3 games × 10 minutes per game) = 40 + 30 = 70 minutes.

https://brainly.com/question/37611272

#SPJ12

Answer:

[tex]\large\boxed{y=(x+2)(x-2)}[/tex]

Step-by-step explanation:

Factored form of quadratic equation:

[tex]y=a(x-x_1)(x-x_2)[/tex]

x₁, x₂ - zeros

We have zeros: x₁ = -2 and x₂ = 2. Substitute:

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

We have the vertex (0, -4). Put the coordinates of the vertex to the equation:

[tex]-4=a(0+2)(0-2)[/tex]

[tex]-4=a(2)(-2)[/tex]

[tex]-4=-4a[/tex]             divdie both sides by (-4)

[tex]1=a\to a=1[/tex]

Finally:

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

The equation in factored form given the zeros -2 and 2 with the vertex (0,-4) is f(x) = -(x + 2)(x - 2).

To find the equation in factored form given the zeros = -2 and 2 with the vertex (0,-4), we start with the standard form of a quadratic function, which is f(x) = ax^2 + bx + c. Since the vertex is at the origin and the parabola opens upward (the coefficient of x^2 is positive), and the factor form of the quadratic equation is f(x) = a(x - p)(x - q), where p and q are the zeros of the function.

In this case, using the given zeros of -2 and 2, the factored form starts as f(x) = a(x + 2)(x - 2). To find the value of a, we use the vertex (0,-4). The vertex form of a quadratic function is f(x) = a(x - h)^2 + k, where the vertex is at the point (h,k). Comparing the vertex form with the vertex given, we get f(x) = a(x - 0)^2 - 4. Since when x = 0, f(x) = -4, we can see that a must be -1. Therefore, the factored form of the quadratic function is f(x) = -1(x + 2)(x - 2) or f(x) = -(x + 2)(x - 2).

1 is C not sure about 2

The inequality is 20¢ ≤ x ≤ 32¢

Answer:

9,5

Step-by-step explanation:

It's it reflection on the opposite side, so you get (9,5) as they were also given to you.

The correct answer should be :

Option 3 : [tex]753.6cm^{2}[/tex]

Hope this helps,

Davinia.

Answer:

1/2, or 0.5

Step-by-step explanation:

There are 4 ways that 2 coins can fall...

Both heads (this satisfies our situation)

1st coin heads, 2nd coin tails

1st coin tails, 2nd coin heads

Both tails (this satisfies our situation)

We have 2 out of 4 ways to satisfy this situation, so our experimental probability is

P = 2/4 which reduces to

 P = 1/2 , or 0.5 as a decimal

The experimental probability of both coins landing on the same side is 0.25 or 25%.

Each flip of a fair coin is independent, so the probability of both coins landing on the same side (heads or tails) =

0.5 × 0.5 = 0.25 or 25%.

The surface area of a regular right pyramid with a square base can be found using the formula: Surface Area = Area of Base + (1/2 × Perimeter of Base × Slant Height). You will need to know the side length of the base and the slant height of the pyramid to calculate the surface area.

A right pyramid with a square base has a surface area that can be calculated by finding the sum of the areas of all its faces. The surface area of a regular right pyramid can be determined using the formula:

Surface Area = Area of Base + (1/2 × Perimeter of Base × Slant Height)

Since the base of the pyramid is a square, the area of the base is given by:

Area of Base = Side Length × Side Length

To find the surface area, you will need to know the side length of the base and the slant height of the pyramid. Once you have these measurements, substitute them into the formula to calculate the surface area.

Answer: 16 square feet

Step-by-step explanation: In order to calculate how much total screen she needs you need to calculate each section.

The small ends are 2 ft x 1 ft, so you need 2 feet for each end, or 4 feet total.

The long sides are 3 ft x 2 ft, so you need 6 feet for each end, or 12 feet total.

The total screen needed for the sides is 4 + 12 = 16 square feet.

a=1, b =18

a=2, b = 9

a = 3 , b = 6

Hello! Essentially you are trying to find a linear function. For example, a linear function is a function that increases or decreases in some type of relationship between each pair consistently. To answer your question, one example could look like this...

Lastbenchstudent basically nailed the linear equation but I could elaborate from his work and answer your question in a different way.

A = 3, B = 18

A = 2, B = 9

A = 1, B = 4.5

To explain my answer, I basically divided B every time A decreased. As A decreased by 1, B decreased by half the amount!