find the area in square units of the polygon with the given vertices A (-5, 0), B (0, 10), and C (15,0)

Answers

Answer 1
Answer:

Answer:

To find the area of the polygon with the given vertices A(-5, 0), B(0, 10), and C(15, 0), you can use the formula for the area of a triangle when you have the coordinates of its vertices. The formula is:

Area = 1/2 * |x1(y2 - y3) + x2(y3 - y1) + x3(y1 - y2)|

In this case, A(-5, 0), B(0, 10), and C(15, 0), so you can plug in these coordinates into the formula:

Area = 1/2 * |-5(10 - 0) + 0(0 - 0) + 15(0 - 10)|

Simplify the expression inside the absolute value:

Area = 1/2 * |-50 + 0 - 150|

Now, continue simplifying:

Area = 1/2 * |-200|

Since we're taking the absolute value, it becomes:

Area = 1/2 * 200

Now, calculate the area:

Area = 100 square units

So, the area of the polygon is 100 square units.

You can also use the distance formula, but this way is faster to me :-p


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The Value of x=±\sqrt{ (y-c)/(a)

To find the value of X.

What is Quadratic equation?

Any equation containing one term in which the unknown is squared and no term in which it is raised to a higher power.

Assuming

a≠0...

First subtract c from both sides to get:

y-c=ax^(2)

Divide both sides by a and transpose to get:

x^(2) =(y-c)/(a)

So x must be a square root of (y-c)/(a) and we can deduce:

x=± \sqrt{(y-c)/(a)

So, the Value of x=±\sqrt (y-c)/(a)

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Answer:

b

Step-by-step explanation:

At a certain store, a CD costs $12. If the cost of CDs were graphed as the output, compared to the number of CDs purchased as input, which of the following would not be true of the graph?

Answers

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Answers

Answer:

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if the wheel(w) at the end of the arm is 105m from the spindle point(c) .what distance does this wheel cover in one full rotation of the arm?

Answers

Hello,

the length of the circomference is 2*π*radius
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If rectangle is 8 feet long and (7+x) feet wide. what is the area of the rectangle in square feet?

Answers

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One point on a line is given the coordinate 5.3. A second point on the line has a coordinate of 8.7.The distance between these points is __________ units.

Answers

Answer: The distance between these points is 5 units.

Step-by-step explanation:

We know that by Distance formula , the distance between two points (a,b) and (c,d) is given by :-

D=√((d-b)^2+(c-a)^2)

The given points = (5,3) and (8,7)

The distance between theses points will be :

D=√((7-3)^2+(8-5)^2)\n\n\Rightarrow\ D=√((4)^2+(3)^2)\n\n\Rightarrow\  D=√(16+9)\n\n\Rightarrow\ D=√(25)=\pm5

Since , Distance is always positive , it means the distance between the given points is 5 units.

Answer:

3.2

Step-by-step explanation:

The distance formula  on a number line is

d= x2-x1

d= 8.7-5.3 =3.2