i need help its 7th grade area surface

Answer:

D : y = 7x - 20

Step-by-step explanation:

let D be the line that passes through the points (4, 8) and (2, -6)

Then D has an equation of the form D: y = ax + b

Now we need to find a and b in order to be able to write the equation of the line D:

[tex]a = \frac{8-(-6)}{4-2}=\frac{14}{2}=7[/tex]

Since the point (4, 8) lies on the line D then :

8 = 7 × (4) + b

then

8 = 28 + b

then

b = 8 - 28

  = -20

Conclusion:

Since a = 7 and b = -20 then

D : y = 7x - 20

Area of vertical rectangle:-

Area of horizontal rectangle:-

Area of triangle:-

Total area:-

Answer: 11 adult tickets

Step-by-step explanation:

      First, we will write an equation. Let x be adult tickets and y be children tickets.

   $280 ≥ 18.5x + 12.25y

      Now I will graph it!

-> See attached

    If she bought 6 children's tickets, we can look to the y value of 6 (children's tickets) to find our maximum value of x (adult tickets).

    This means she can buy a maximum of 11 tickets because we will assume she cannot buy part of a ticket.

      She can buy 11 adult tickets.

Answer:

i dont have the answer but heres a little help to find your answer:)

Step-by-step explanation:

The formula for the volume of a prism is V=Bh , where B is the base area and h is the height. The base of the prism is a rectangle. 

Kids in grade school have a maximum percentage of 32 reasons that Option (d) is the correct answer.

Korey did the market analysis section of his business plan after conducting a population survey of 3,520 homes within a 5-mile radius.

He discovered that younger children who read comic books as children are more likely to read them as adults, resulting in a current and future client base.

For more information about the market analysis survey, refer below

brainly.com/question/3886071

Answer:

(8.6)(-2)+(8.6)(-0.5)

Step-by-step explanation

Since -2+-0.5= -2.5, we need to use a plus sign. Also, since we multiply both by 8.6, that is the answer.

Answer:

part a is 240240

Step-by-step explanation:

multiply the value in miles by the conversion factor '5280'.

Answer:

Can you please give us figure so that i can help you

Answer:

R(t)=10+0.50t

Step-by-step explanation:

Let t be the number of years.

We have been given that When Joseph first starts working at a grocery store, his hourly rate is $10.

 For each year he works at the grocery store, his hourly rate increases by $0.50.

So the hourly rates after t years will be 10 plus 0.50t.We can represent this information in an equation as: R(t)=10+0.50t

Therefore, the function  R(t)=10+0.50t represents Joseph's hourly rates after t years.

(Hope this helps pls can I have brainlist have a great day )

Answer:

(x,y)

Step-by-step explanation:

x comes first always

(x,y)

so 2 would be the x value and 3 would be the y value

Answer:

The surface area of the rectangle is 2670

Answer:

y-intercept = -5

slope = 2

Step-by-step explanation:

Hello!

The y-intercept is always the y-coordinate when the line touches the y-axis. You can find this by plugging in 0 for x in the equation or choosing the last term in slope-intercept form.

Slope intercept form: y = mx + b

Given this info, we can see that the slope, m, is 2, from our equation of y = 2x - 5, and the y-intercept is -5

Answer:

2

Step-by-step explanation:

-10 + x = - 8     add 10 to both sides of the equation

     x = 2  

Answer:

6283.2

Step-by-step explanation:

[tex]V=\pi r^{2} h[/tex]

[tex]= \pi*10^{2} *20=6283.2[/tex]

Answer:

V=1570.8in³

Step-by-step explanation:

The formula for finding a cylinder using base diameter and height: V= π(d/2)² • h

if the:

D-10in

H-20in

V=π(10/2)²•20

which equals 1570.8in³

-my bad thought it said base diameter no radius

Answer:

113.04

Step-by-step explanation:

Given:V = 324 cu

cmh = 9 cm

Since the formula for the volume of a cylinder is V = AreaBase*heightAreaBase = V/height = 324cu cm/ 9 cmAreaBase = 113.04 square centimetresTherefore, the area of the pillar in square centimeters is 113.04

The base area of the cylindrical pillar would be; 113.04 cm²

The volume of the cylinder is the product of the height, pie, and square of the radius.

v = πr²h

where, r = radius, h = height

Therefore,

v = 324π cm³

h = 9cm

Consider find the radius;

324π = 9πr²

r² = 324π  /9π

r² = 36

r = √36

r = 6 cm

Base area of the pillar = πr²

Base area of the pillar = 36π

Base area of the pillar = 36 × 3.14

Base area of the pillar is 113.04 cm²

learn more on volume here:brainly.com/question/6907185

#SPJ5

Answer:

see explanation

Step-by-step explanation:

the perimeter (P) is the sum of the 3 sides of the triangle.

P = 4x² + 1 + 26x + 6 + x² + 10x ← collect like terms

  = 5x² + 36x + 7

to factor the expression, consider the factors of the product of the x² term and the constant term which sum to give the coefficient of the x- term.

product = 5 × 7 = 35 and sum = 36

the factors are + 35 and + 1

use these factors to split the x- term

5x² + 35x + 1x + 7 ( factor the first/second and third/fourth terms )

= 5x(x + 7) + 1 (x + 7) ← factor out (x + 7) from each term

= (x + 7)(5x + 1) , then

P = (x + 7)(5x + 1) ← in factored form

x= 41

Break the shape into two triangles

Use Pythagoras theorem to solve for the hypotenuse of the first triangle (the triangle with sides 32 and 24). You should have 40

Get to the second triangle. Use Pythagoras theorem to solve for the hypotenuse which, in this case, is x. Note that the sides of the second triangle are 40 (the hypotenuse of the last triangle. Look closely. ) and 9

There are 24 students in the 7th grade who chose non-sports. Then the correct option is C.

Statistics is the study of collection, analysis, interpretation, and presentation of data or to discipline to collect, and summarise the data.

A group of 120 seventh- and eighth-grade students were asked whether they participate in sports or in non-sports-related activities. The two-way table shows.

Participation in Sports or Non-Sports

There are 24 students in the 7th grade who chose non-sports.

More about the statistics link is given below.

https://brainly.com/question/10951564

Answer:

C

Step-by-step explanation:

Answer: 3

Step-by-step explanation:

The answer to the question including equations is "None of these."

The value of x cannot be determined from the information given. The answer choices are all numbers, but they do not follow any obvious pattern. There is no mathematical operation that can be performed on the answer choices to arrive at a single value for x.

If we were given more information about the problem, such as the relationship between the answer choices, then we might be able to determine the value of x. For example, if we were told that the answer choices are all prime numbers, then we could rule out all of the answer choices except for 2 and 3. However, without more information, the value of x cannot be determined.

Here is a more detailed explanation of why the value of x cannot be determined:

The answer choices are all numbers, but they do not follow any obvious pattern. For example, the answer choices are not consecutive numbers, nor are they all even or odd numbers.

There is no mathematical operation that can be performed on the answer choices to arrive at a single value for x. For example, we cannot add, subtract, multiply, or divide the answer choices to get a single value for x.

If we were given more information about the problem, such as the relationship between the answer choices, then we might be able to determine the value of x. For example, if we were told that the answer choices are all prime numbers, then we could rule out all of the answer choices except for 2 and 3. However, without more information, the value of x cannot be determined.

Therefore, the answer to the question is "None of these."

To learn more about equations here:

https://brainly.com/question/33622350

#SPJ2

Slope= -1/2

Hope it helps.

Do comment if you have any query.

Slope:-

Subtracting 3x^4+9x^3x^2 from the dividend and bringing down by 13x, the quotient is 3x^2-2x+5, and the term 3x^2 in the quotient is the result of dividing 3x^4 by x²

Polynomial is the combination of variables and constants in a systematic manner with "n" number of power in ascending or descending order.

We have a polynomial:

[tex]=\rm -2x^3-x^2+13x[/tex]

The dividend polynomial:

[tex]\rm = 3x^4+7x^3+2x^2+13x+5[/tex]

If we subtract  the polynomial [tex]\rm 3x^4+9x^3+3x^2[/tex] from the dividend polynomial, we will get:

[tex]\rm = (3x^4+7x^3+2x^2+13x+5)-(3x^4+9x^3+3x^2)[/tex]

[tex]\rm = -2x^3-x^2+13x+5[/tex]

After bringing down 13x, we will get the polynomial:

[tex]=\rm -2x^3-x^2+13x[/tex]

If complete the division of the polynomial, we will get:

[tex]\rm = \frac{(3x^4+7x^3+2x^2+13x+5)}{x^2+3x+1}[/tex]

= [tex]=\rm 3x^2-2x+5[/tex]

Thus, the subtracting 3x^4+9x^3x^2 from the dividend and bringing down by 13x, the quotient is 3x^2-2x+5, and the term 3x^2 in the quotient is the result of dividing 3x^4 by x²

Learn more about Polynomial here:

brainly.com/question/17822016

Answer:

63

Step-by-step explanation:

John's percentage:

36 and 48 have a common factor of 12 so divide both of them by 12.

36/12= 3 and 48/12=4 therefore

so 36/48= 3/4 which is 75% but we don't need to focus on the percent.

Don's no. of shirts:

we know Don has 84 shirts so we say

3/4 of 84= no. of shirts that Don put in his closet

84/4=21 21x3=63

Don put 63 shirts in his closet.

Hope that helped! Anymore questions just ask! :)

Answer:

6 cm²

Step-by-step explanation:

V = Bh

30 = B (5)

[tex]b \: = \frac{30}{5} = 6 \: cm {}^{2} [/tex]

Mia's fraction is an illustration of number lines

The fraction present on the number line is 5/6

From the complete question, we have the following parameters:

This means that, the fraction represented by the point P is:

P = 5/6

Hence, the fraction present on the number line is 5/6

Read more about number lines at:

https://brainly.com/question/4727909

Answer:

[tex]y = (x - 7)^{2} + 7[/tex].

Step-by-step explanation:

Let [tex]a[/tex], [tex]h[/tex], and [tex]k[/tex] be constants, and let [tex]a \ne 0[/tex]. The equation [tex]y = a\, (x - h)^{2} + k[/tex] represents a parabola in a plane with vertex at [tex](h,\, k)[/tex].

For example, for [tex]y = -(x + 7)^{2} + 7 = -(x - (-7))^{2} + 7[/tex], [tex]a = (-1)[/tex], [tex]h = (-7)[/tex], and [tex]k = 7[/tex].

A parabola is entirely above the [tex]x[/tex]-axis only if this parabola opens upwards, with the vertex [tex](h,\, k)[/tex] above the [tex]x\![/tex]-axis.

The parabola opens upwards if and only if the leading coefficient is positive: [tex]a > 0[/tex].

For the vertex [tex](h,\, k)[/tex] to be above the [tex]x[/tex]-axis, the [tex]y[/tex]-coordinate of that point, [tex]k[/tex], must be strictly positive. Thus, [tex]k > 0[/tex].

Among the choices:

Answer:

its c

Step-by-step explanation:

Answer:

.767

Step-by-step explanation:

0. ones, tens, hundreds, thousands

Answer:

[tex]\text{slope} =\frac{3}{2}[/tex]

Step-by-step explanation:

Firstly ,check the image I provided.

we notice that the points A(1 , -3) and B(3 , 0) lie on the line

then

[tex]\text{slope} =\frac{0-\left( -3\right) }{3-1} =\frac{3}{2}[/tex]

Answer:

The sides of the triangle are 45, 60, and 25 ft

Step-by-step explanation:

9 + 12 + 5 equals 26.

Now we need to get the first two sides.

9/26 × 130 = 1170/26 = 45

In order to obtain the other side;

12/26 = 1560/26 = 60

And to obtain the third side:

5/26 × 130 =650/26 = 25

Therefore, the sides of the triangle are 45, 60, and 25 ft

I hope this helps! ^-^

Answer:

Egg and Jelly Bans

Step-by-step explanation:

*Using a calculator or otherwise*

1.45 x 3 = $4.35                                           1.05(eggs)+1.37(beans)= $2.42

        +

2.29 x 2 =$4.58

              = $8.93

11.35-8.93= $2.42

Answer:

The fundamental properties of rectangles are:

Step-by-step explanation:

Since you said, which of the following, I don't see any attachment. Yet, this is my best try at giving you an answer. Please mark my answer brainliest :)