The side length of an isosceles right triangle is 7x + 3 feet. (both base and height are 7x + 3 feet).

then written in standard form, what is the area of the triangle? (area of triangle = 1/2bh)

What is the area of the triangle in cubic feet when x = 11?

Answers

Answer 1

9514 1404 393

Answer:

area: 49/2x^2 +21x +9/2for x=11: 3200 ft^2

Step-by-step explanation:

The area is given by the formula in the problem statement:

  A = 1/2bh

  A = 1/2(7x +3)(7x +3) = 1/2(49x^2 +42x +9)

The area is (49/2)x^2 +21x +9/2 . . . square feet.

__

When x=11, the area is ...

  A = (1/2)(7·11 +3)^2 = 1/2(80^2) = 3200 . . . . square feet

_____

Comment on the problem statement

Area is measured in square feet, not cubic feet.


Related Questions

Write an equation of the line that passes through the points ( 2,6) and (- 8, 1)

Answers

Answer:

[tex]y = \frac{1}{2} x+5[/tex]  

Step-by-step explanation:

1) First, find the slope of the line that passes between the two points. Substitute the x and y values of (2,6) and (-8,1) into slope formula, [tex]m = \frac{y_2-y_1}{x_2-x_1}[/tex]. Then, solve:  

[tex]m = \frac{(1)-(6)}{(-8)-(2)} \\m = \frac{1-6}{-8-2} \\m = \frac{-5}{-10} \\m = \frac{1}{2}[/tex]

So, the slope is [tex]\frac{1}{2}[/tex].

2) Now, write the equation of the line using the point-slope formula, [tex]y-y_1 = m (x-x_1)[/tex]. Substitute real values for [tex]m[/tex], [tex]x_1[/tex], and [tex]y_1[/tex].

Since [tex]m[/tex] represents the slope, substitute [tex]\frac{1}{2}[/tex] in its place. Since [tex]x_1[/tex] and [tex]y_1[/tex] represent the x and y values of a point the line intersects, substitute the x and y values of one of the given points into the formula as well. (Any of the two will do. Either choice will represent the same line. I chose (2,6).) Then, isolate y to put the equation in slope-intercept form and find an answer:

[tex]y-6 = \frac{1}{2} (x-2)\\y-6 = \frac{1}{2} x-1\\y = \frac{1}{2} x+5[/tex]

Solve for x. round to the nearest tenth. please help!!

Answers

Answer: 10

Explanation: Trust me Bro

ontinuously running three miles every day over the course of 10 weeks is an example of the exercise principle progression. Please select the best answer from the choices provided. T F

Answers

ontinuously running three miles every day over the course of 10 weeks is an example of the exercise principle progression. Please select the best answer from the choices provided. False

ok i re-uploaded this again because i couldn’t open the file. PLSSS HELP!! DUE TODAY AS MAJOR GRADE!!

Answers

I hope you get this in time f (6) = 72


Explanation: f(6) = 2/3 • (6)^ + (8•6)

= 2/3 crossed out with 1 times 36 crosses out with 12 plus 48 = 24 + 48 = 72

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The diagram shows a pentagon ABCDE.
BC is parallel to AE and angle CDE is a right angle.
Find the values of r and y.​

Answers

Step-by-step explanation:

[tex]find \: y \\ 180 - 90 = 90 \\ 90 \div 2 = 45 \\ y = 45 + 90 = 135[/tex]

[tex]find \: x \\ 360 - 2(90) - 76 = \\ = 360 - 180 - 76 = \\ = 180 - 76 = \\ = 104[/tex]

Workout plus offers a membership for $30 each month plus a $100 startup fee. Fit Works offers a membership for $50 each month plus a $20 startup fee. After how many months will memberships to both gyms cost the same amount?

Answers

Answer:

4 months

Step-by-step explanation:

Let

x = number of months

Workout plus = 100 + 30x

Fit works = 20 + 50x

After how many months will memberships to both gyms cost the same amount?

Equate the cost of both gyms

Workout plus = Fit works

100 + 30x = 20 + 50x

100 - 20 = 50x - 30x

80 = 20x

x = 80/20

x = 4 months

After 4 months, memberships to both gyms cost the same amount

which expressions are equal to 2(2x + 1)​

Answers

Answer:  5

Step-by-step explanation: be 2 x 2 = 4 so +1 = 5

I need help please some one help

Answers

a, b, and d i think.....

What is the x-intercept of the graph? Point slope form

Answers

Answer:

if you show the graph, I can give you the answer

Can somebody help me with this math equation?

Answers

Answer:

10/3 or reduced to 1 1/3

Step-by-step explanation:

So mutiplying  equations are pretty simple. But we can notice that we have a number instead of a fraction. When we see this, a thing that automatically goes through my head is, that a number as a fraction is also 5/1. From there you equation is now 2/3x5/1. We can now multiply the top two numbers and the bottom two numbers. Which equals 10/3.

☁️ Answer ☁️

10/3

Here's the mixed number form:

3 1/3.

Hope it helps!

Have a nice day noona/hyung  ̄▽ ̄

Translate this sentence into an equation.
The sum of 10 and Rhonda's savings is 64.
Use the variable r to represent Rhonda's savings.

Answers

Answer

Rhonda's savings is r and 10 would be what she already has so

Step-by-step explanation:

sum of = +

r + 10 = 64

how do you write a linear equation that relates y to x

Answers

Answer:

Find the slope and y-intercept of the line. = −2 Because the line crosses the y-axis at (0, 3), the y-intercept is 3. So, the linear function is y = −2x + 3. Use the graph or table to write a linear function that relates y to x.

Step-by-step explanation:

Can anyone help me with this math equation?

Answers

Answer:

2/9

Step-by-step explanation:

1/3=3/9

5/9-3/9=2/9

Answer:

2/9

Step-by-step explanation:

1/3= 3/9

5/9 - 3/9 = 2/9

hope this helps

Solve for the unknown angle

Answers

Answer:

(?)=70

Step-by-step explanation:

Find the total surface area of this cone.
Leave your answer in terms of .
15 cm
8cm
SA = [ ? ]cm2
Hint: Surface Area of a Cone = tre + B
Where e = slant height, and B = area of the base

Answers

Answer:

200π cm^2

Step-by-step explanation:

Sb = 8^2 π = 64π cm^2

a = sqrt2 [8^2 + 15^2] = sqrt2 [64 + 225] = sqrt (289) = 17 cm

Sl = 8x17xπ = 136 π cm^2

SA = 136π + 64π =200π cm^2

what is the answer to this fraction 4/8+2/8+4/8​

Answers

Answer:

1 2/8 OR 1 1/4

Step-by-step explanation:

4/8 + 2/8 + 4/8 =

6/8 + 4/8 =

10/8 =

1 2/8 OR 1 1/4

Hope that helps!

2. Vera is half as old as Chuck. Write an expression in terms of x that represents her
age.

Answers

Answer:

y=x1/2

Step-by-step explanation:

y = Vera

x = Chuck

|x +2], if x>-1
Plz help

Answers

Answer:

Step-by-step explanation:

greater than 1   ,  is your teacher just giving you brain teaser questions?  these seem like they are .. "out in the weeds"  type of questions,  not really useful math   :/  

Please help me find the experimental probability for each question! (This is not multiple choice)
a. Tossing 2 blue
b. Tossing 1 blue and 1 pink
c. Not tossing all blue
Thanks. I will give brainliest

Answers

Answer:

1. 4/15

2.8/15

3.11/15

P{E} = No. of Favourable Outcomes/Total Outcomes

In physics, a force is any interaction that, when unopposed, will change the motion of an object.

[tex] \\ [/tex]

A group of Metropolis Middle School students volunteered to build a new city playground. A local pizzeria donated 20 large pizzas for their lunch. The volunteers shared the pizza equally.
Complete the following table to show how the amount of pizza for each
volunteer depends on the number of volunteers.
Number of Volunteers
1
2
5
10
20
40
Number of Pizzas per Volunteer
20
10
?
?
?
?

Answers

Answer:

so so sorry if this anwser is wrong hope this helps

Step-by-step explanation:

number of vounteers                number of pzzia per volunteer

1                                                                   20

2                                                                   10

5                                                                    0

10                                                                 -10

20                                                                -20

40                                                                -40

Can some one awnser the following

Answers

Answer:

-11

Step-by-step explanation:

Lines" L"and "k" shown at the right are parallel and are intersected by line j. Explain how you can write and solve equations to find the measure of each angle. Then find the measure of each angle (2x + 8)° / (5x -- 10) k (3x + 42)°/(x +34)º l​

Answers

Answer:

45

Step-by-step explanation:

because toy have to multiple by the number at is give to you and when toy. solve the answer them will the right answers right

Can someone help me thank you.

Answers

To get the area, you do 13 * 9, which is 117, and the perimeter is 13+13+9+9 which is 44 :)

Answer:

Area = 117 sq. ft.Perimeter = 44 feet

Step-by-step explanation:

Given,

Length of the bedroom = 13 feet

Width of the bedroom = 9 feet

Therefore,

First Case:

Area of the bedroom = Length × Width

= 13 feet × 9 feet

= 117 sq. ft.

Second Case:

Perimeter of the bedroom = 2(Length + Width)

= 2 (13 + 9) feet

= 2 × 22 feet

= 44 feet

Hence,

Required area of the bedroom is 117 sq. ft. and perimeter of the bedroom os 44 feet (Ans)

I NEED HELP WITH THIS

Answers

Answer: 119

Explanation:

Is 8 a solution to 6+6=48

Answers

Answer:

yes

Step-by-step explanation:

8x6

Answer:no it is not

Step-by-step explanation:

Gary is searching for a buried treasure. The treasure map is on a rectangular coordinate grid with only the following clue: The treasure is at a spot where one coordinate is the opposite of the other and the y-coordinate is 4 greater than the xcoordinate. At which coordinates would the treasure be located on the map?​

Answers

Answer:

on the grid it says 4 but gary is looking for treasure so it would be worth more than your you know?

Step-by-step explanation:

Although you love to watch TV, you have made a goal to spend more time outdoors. You decide that you will spend 222 times as many hours outdoors as you spend watching TV. Write an equation for the number of hours you will spend outdoors, ooo, when you spend ttt hours watching TV.

Answers

Answer:

the equation that should be required is 0 = 2t

Step-by-step explanation:

Let us assume the hours of television be t

And, for hours outdoor be o

As the hours outdoors would be twice the hours of television so the equation is

0 = 2t

Therefore the equation that should be required is 0 = 2t

The same is  relevant

Answer:

o = 2t

Step-by-step explanation:

You will spend 2 times as many hours outdoors as you spend watching TV. The number of hours you spend outdoors depends on t, the number of hours you spend watching TV.

To find the number of hours you will spend outdoors, o, you can use the equation o = 2t

Remember, you want to find the number of hours you will spend outdoors if you spend  4 hours watching TV and 8 hours watching TV.

8 = 2 x 4

16 = 2 x 8

Now we can turn the values from the equation into ordered pairs in the form (x , y).

The ordered pairs are (4 , 8) and (8 , 16).

I will give you BRAINLIEST for the correct answer

Answers

Answer:

d

Step-by-step explanation:

5) Caroline paid for 6 palm trees to be delivered. Each palm tree cost $120.50 Caroline paid $74.50 for delivery. What is the total amount Caroline paid?​

Answers

Answer:

797.50

Step-by-step explanation:

6* $120.50 = $723

$723 + $74.50 = $797.50

What is 30% of 60?
options:

26

36

46

56

Answers

Answer:

None of these are correct.. 30% of 60 is 18.

Step-by-step explanation:

60 x .30 = 18

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