1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
-Dominant- [34]
3 years ago
8

What is the area of a triangle with the coordinates (-4,14) (10,0) (-14,-10)

Mathematics
1 answer:
allsm [11]3 years ago
3 0
You can use Heron Formula in the calculator to output the result, but i still show you the steps on paper thro

lengths of the 3 lines:  \sqrt{392} ,  \sqrt{676} ,  \sqrt{676} 

s= (\sqrt{392} + \sqrt{676} + \sqrt{676})/2=35.89949494

area= \sqrt{s(s- \sqrt{392} )(s- \sqrt{676})^2 } =238
You might be interested in
What is the solution to 2x^+8x=x^-16
malfutka [58]

Answer:

If you are solving for x then the answer is x= -4

Step-by-step explanation:

8 0
3 years ago
PLEASE HELP ME WITH THESE 2 QUESTIONS YOU GUYS, I AM TRYING TO PASS MATH CLASS. PLEASE. please. I AM GIVING 30 PTS FOR THIS. PLE
Bad White [126]

Explicit Formula

Just in case you don't know what this is, the explicit formula is the formula that solves for any term in the series without necessarily knowing what came before the term you are solving.

<em><u>Givens</u></em>

d = t_(n + 1) - t_n  You can take any term and the next term for this part of the formula

d = t_3 - t_2

t_3 = 1

t_2 = -7

d = 1 - - 7 = 8

a = -15

<em><u>Formula</u></em>

t_n = a + (n - 1)*d

t_n = -15 + (n - 1)*8

For example find the 5th term.

t_5 = - 15 + (5 - 1)*8

t_5 = - 15 + 4 *8

t_5 = -15 + 32

t_5 = 17  Which is what you have.

Recursive Formula

Computers really like this formula. They use it in what is called a subroutine and they pass values from one part of the program to a subroutine which evaluates the given and sends the result back. I'm telling you all this so you see why you are doing it. The disadvantage of it for humans is that you must know the preceding term to use the recursive formula.  

<em><u>Formula</u></em>

t_n = t_(n - 1) + d

<em><u>Example</u></em>

t_6 = t_(6 - 1) + d

t_6 = t_5 + 8

t_6 = 17 + 8

t_6 = 25

You can check this by using the explicit formula.

4 0
3 years ago
Read 2 more answers
What is the lateral area of the drawing?
katrin2010 [14]

The lateral area of the shape is the sum of the area of all lateral faces.

The area of the lateral face that is rectangle with sides 5 mi and 2 mi is

A=5\cdot 2=10\ mi^2.

As you can see the shape has all four lateral faces of the same rectangular form with the same sides lengths, therefore,

LA=4A=4\cdot 10=40\ mi^2.

Answer: correct choice is B.

8 0
3 years ago
Round to 2 decimal places *
EleoNora [17]

Answer: The circumference of the dome is therefore 149.15 feet or 47.5π feet

Step-by-step explanation:

A scale is basically referred to as the ratio of the dimensions of an object as represented in a draft to the real or true dimensions of the object being drafted.

The figure(s) on the left of the ratio sign represents the size and dimensions of the model with respect to the actual size or dimensions of the object. On the other hand, the figure on the right hand size represents the actual dimensions and size of the real object.

So, if an object is being drawn with the ratio, 1cm : 5cm it means that the size of the object is being reduced because every 5cm of the actual object will always be represented by 1cm in the drawing. If the object is being drawn with a scale of 5cm : 1cm then the actual size of the object will be increased in the drawing. That is, for every 1cm in the actual dimensions of the object, there will be a 5cm representation in the drawing.

Now, the architect draws with a scale of 0.25 inches : 1 foot. If the diameter of the hemispherical dome is 23.75 inches in the scale model, then the actual diameter of the dome is:

0.25 inches ------- 1 foot

23.75 inches ------- ? feet

= 23.75/0.25 × 1

= 95 feet

Therefore, the actual diameter of the dome is 95 feet. We are now required to find the circumference of this dome.

The dome is a hemisphere which literally means half of a sphere. So, if the formula for finding the circumference of a sphere is πd, that of a hemisphere will then be πd/2. Since the diameter is already known to be 95 feet, the circumference of the hemisphere =

(π × 95)/2

=47.5π feet

Or

If π = 3.14, then the circumference = (3.14 × 95)/2 = 149.15 feet

The circumference of the dome is 149.15 feet or 47.5π feet

5 0
3 years ago
What is the value of c in the equation x^15/x^c =x^6
Galina-37 [17]

Step-by-step explanation:

\frac{ {x}^{15} }{ {x}^{c} }  =  { x}^{6} \\  {x}^{15 - c}  =  {x}^{6}

15 - c = 6

15 - 6 = c

9 = c

c = 9

3 0
2 years ago
Other questions:
  • Maya has 120 caramel apples to sell. Each caramel apple is covered with one topping
    12·1 answer
  • Does anyone know how to solve this?
    6·1 answer
  • Mr Ferguson reads 1/10 of a book to his class each day what fraction of the book has mr Ferguson read to the class after 5 days
    15·1 answer
  • Which of the following is not necessarily true for independent events A and B? P (A intersection B )equals P (A )P (B )P (A vert
    9·1 answer
  • When a softball player gets a hit, it can be a single, double, triple, or home run. When Josephine is at bat, the probability
    7·2 answers
  • What is the next letter in this sequence ? D,H,L,P,..
    11·1 answer
  • The path of pumpkin A is modeled by the equation h(x) = –0.01x2 + 0.32x + 4. The path of pumpkin B is modeled by the equation h(
    9·1 answer
  • If you watched any or both of these movies, make a 5 sentence summary about it
    6·1 answer
  • 46 cubes are shaded out of 100. What is the ratio
    12·2 answers
  • A number decreased by 5 is less than 33.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!