Mathematics High School

A certain building has a triangular shaped face to link up of the sides of the triangular base or 145 feet 257 feet in 290 feet five find the area of the base of the building

Answers

Answer 1

Answer:

18617.66 ft^2

Step-by-step explanation:

sides of triangular base

a=  145ft  ,

b = 257ft ,

c =  290ft

calculate the area of the base  

The base is a scalene triangle hence the area is calculated as follows

s = ( a + b + c ) / 2

  = ( 145 + 257 + 290 ) / 2 = 346

Area of triangle = [tex]\sqrt{s(s-a)(s-b)(s-c)} = \sqrt{346(201)(89)(56)}[/tex]

                          = 18617.66 ft^2

Related Questions

Review Exercise 14b
Find the truth set of the following equations
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Answers

Answer:

5/6

Step-by-step explanation:

x = 5/6.

Did I choose the correct answer?

Answers

Answer:

11.90

Step-by-step explanation:

oh yes sorry I didn't see what you chose lol

Answer:

Yes

Step-by-step explanation:

Rounding two decimal points mean there will be two numbers behind the decimal and since 6 is more than 5 and influences the result of the 9 the answer would be 11.90. It could be 11.9 but having said there is two decimal places there should be a 0 hope this helps!!

Simplify this to the lowest form: 2c^2 - 6 + c^2 - 3 + 3c^3

Answers

Answer:

7c^2 - 9

Step-by-step explanation:

2c^2 - 6 + c^2 - 3 + 3c^3

7c^2 - 9

What is the value of X? x=?º

Answers

Answer:

X=30⁰

Step-by-step explanation:

X=120-60/2

X=60/2

x=30

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Find the range of the following numbers: 10 78 22 354 75 81 8 6 A 8 C 27 B 81 D 78​

Answers

Answer:

348

Step-by-step explanation:

6 8 10 22 75 78 81 354

subtract the highest number to the lowest number

find the slope-intercept equation of the line that passes through (0,1) and has a slope of -2/3

Answers

Answer:

y = -2/3x + 1

Step-by-step explanation:

We already know the slope, so all we need to do is find the y-intercept. To find that, we need to plug the coordinates into the equation so far, which is,

y = -2/3x + b

1 = -2/3(0) + b

1 = 0 +b

1 = b

So the equation is y = -2/3x + 1

What triangle congruence postulate would you use to prove these triangles are congruent.

Answers

ssssssssssssssssssssss

Answer:

I don't know

Step-by-step explanation:

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question 8 thank youuu

Answers

Step-by-step explanation:

hope this help have a great day

A.2n+ 4= D
D is Dai by the way

B.
D-8 = n+8
(2n + 4)- 8 = n + 8
2n - 4 = n + 8
2n - n = 8 + 4
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Please help! The question is on the photo

Answers

Answer:

(0, 3) (0, -4) (-5, 4) (1, 1)

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Answers

Answer:

it’s unknown

Step-by-step explanation:

the variable is unknown so it would stay 7x + 19 until you know the variable unless you’re able to do 26x

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Answers

The correct answer for the question is C I’m sure of it

What is the probability of picking a red marble
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answer in fraction form in lowest terms)

Answers

how many marbles are there

Put these numbers in order from least to greatest.

Answers

i believe the order you have it in is correct

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Answers

Answer:

x=3, HED =39

Step-by-step explanation:

Solution :

[tex]10x + 21 + 13x = 90[/tex]

[tex]23x = 90 - 21[/tex]

[tex]23x = 69 = > x = 3[/tex]

Angle HED = 13 × 3 = 39°

Hope this helps!

What is x-2.3y=0.6 -x+5.1y=-6.2

Answers

You have to add the like terms then it will equal y=2

What is the equation of the line shown in the graph?

Answers

y = -5x + 6. Hope that helps.

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Answers

Step-by-step explanation:

Given

5y + 68 = 3y + 96 (vertically opposite angles) and

3x + 18 = 5x + 2 (vertically opposite angles)

Now solve for x.

[tex]3x + 18 = 5x + 2 \\ 3x + 18 - 5x = 2 \\ - 2x + 18 = 2 \\ - 2x = 2 - 18 \\ - 2x = - 16 \\ x = - 16 \div - 2 \\ = 8[/tex]

Now Solve for y.

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Answers

Answer:

89

Step-by-step explanation:

Firstly u need to calculate the numbers in the bracket .

So,

8×2 = 16

15/3 = 5

100 - 16 + 5 = 89

Solve for c.
9 = 1+c

Answers

Answer:

c = 8

Step-by-step explanation:

170% of what number is 40?
Provide and exact fraction answer

Answers

Answer: 23.53

Step-by-step explanation:

We have, 170% × x = 40

or,

170

100

× x = 40

Multiplying both sides by 100 and dividing both sides by 170,

we have x = 40 ×

100

170

x = 23.53

If you are using a calculator, simply enter 40×100÷170, which will give you the answer.

I'll give brainlyest hel

Answers

Answer:

66 m^2

Step-by-step explanation:

6*11=66

Will Mark Brainliest <3

Please help!!!

Answers

It would be 8,993,200

how many 3 digit whole numbers are there between 99 and 1000

Answers

Answer:

901

Step-by-step explanation:

1000 - 99 = 901

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Answer:

910

Step-by-step explanation:

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Answers

Answer

2

Step-by-step explanation:

1+1=2

Answer: Window

Step-by-step explanation:

1+1 the the = on top :D

Which of the following is a valid conclusion about the data?

Answers

Answer: D

Step-by-step explanation:

This list gives the height of different plants in inches. 10.25, 11.25, 11.00, 10.50, 10.50, 11.00, 10.75, 10.25, 11.00, 10.25, 10.50, 10.75, 10.25, 10.25, 10.50, 11.25, 11.00, 10.75 Create a line plot to display the data. To create a line plot, hover over each number on the number line. Then click and drag up to plot the data.

Answers

Answer:

10.25 xxxx 10.50 xxxx 10.75 xxx 11.00 xxxx 11.25 xx

Step-by-step explanation:

hope this helps

Answer:

10.25 | 5

10.50 | 4

10.75 | 3

11.00 | 4

11.25 | 2

Step-by-step explanation:

I took test on K12.

Here if proof I got it correct.

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Answers

Answer:

[tex]c \: (x + 5)(x - 1)[/tex]

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Answers

Answer:

x + 0.25

Step-by-step explanation:

In this equation, x is representing an integer ( - 0.5, - 0.75, 0, 0.25) whilst 0.25 is a constant

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rolling two number cubes

A. 8
B. 18
C. 36
D. 12

Answers

Answer:

36

Step-by-step explanation:

Wanda's dog eat 35 pounds of dog food each week. At this rate, how many pounds of dog food they eat in 12 days what is the answer?

Answers

Answer:

420

Step-by-step explanation:

35 x 12 = 420

Answer:

420

Step-by-step explanation:

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