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vovikov84 [41]
3 years ago
11

FAST PLEASE 50 POINTS :D

Mathematics
2 answers:
Ivenika [448]3 years ago
8 0

Answer:

20 units ^2

Step-by-step explanation:

The vertices are ( -8,-2) (-3,-2) (-3,-6) (-8,-6)

The sides are parallel

The lengths are *2- to -6  = 4 units

and  -8 to -3 = 5 units

4*5 = 20 units ^2

Naddika [18.5K]3 years ago
3 0

Answer:

Area = 20 units²

Step-by-step explanation:

<em>Let A(-8,-2), B(-3,-2), C(-3,-6) and D(-8,-6) so that the rectangle becomes ABCD.</em>

=> <u><em>Since it's a rectangle it will have two opposite sides equal.</em></u>

<em>So, let's find the length of any two sides (as length and width) by Distance Formula.</em>

Distance Formula = \sqrt{(x2-x1)^2+(y2-y1)^2}

<u><em>Side AB:</em></u>

|AB| = \sqrt{(-3+8)^2+(-2+2)^2}

|AB| = \sqrt{5^2}

|AB| = 5

<u><em>Side BC:</em></u>

|BC| = \sqrt{(-3+3)^2+(-6+2)^2}

|BC| = \sqrt{16}

|BC| = 4

<u><em>Now, Area:</em></u>

Area of the rectangle = Length * Width

Area = 4 * 5

Area = 20 units²

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A 3-mi cab ride costs $7.30. A 8-mi cab ride costs $15.30. Find a linear equation that models a relationship between cost c and
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Since, A 3-mi cab ride costs $7.30 and a 8-mi cab ride costs $15.30.

In the information given above, we can consider these as the coordinate points on the axes.

Let (c, d) be the coordinates , where 'c' represents the total cost and 'd' represents the distance traveled.

Cost is on the 'y' axis and distance is on the 'x' axis.

Now, let the first point on the coordinate axes be (3, 7.30) and the other point is given by (8, 15.30).

For the given points say (x_1,y_1) and (x_2,y_2) , equation of line is given by:

(y-y_1)= m(x-x_1) where m(slope) is given by \frac{y_2-y_1}{x_2-x_1}.

The equation of line for the given points is:

(c-7.30) = (\frac{15.30-7.30}{8-3})(d-3)

(c-7.30) = 1.6(d-3)

c-7.30 = 1.6d-4.8

c-1.6d=2.5

So, c = 1.6d+2.5 is the required linear equation that models a relationship between cost c and distance d.

7 0
3 years ago
Mason has lunch at a restaurant and the cost of his meal is $30. Mason
alekssr [168]

Answer:

Step-by-step explanation:

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3 years ago
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What is the perimiter, in feet, of a square whose area is 121 square feet
Ainat [17]

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So sqrt the area.

sqrt 121 = 11

11 feet is the length of one side, square has 4.

So

11 * 4 = 44

The perimeter of a square (whose area is 121 feet) is 44 feet.

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Whats the answer to 26.02 x 2.006
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52.19612

Step-by-step explanation:

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3 years ago
0.33333333333333333333333333333333333333333333333 simplified at a fraction
USPshnik [31]

Answer:

\frac{1}{3}

Step-by-step explanation:

Your original number to convert is 0.333333. Let's slide the decimal point in this number to the right 1 place(s) (the same number of digits in the number 3).

If we do this, we'll get a 3.333333 (slide the decimal in the 0.333333 right 1 places, you'll get 3.333333).

So what? Well now, we have two numbers with the same repeating decimal parts, 3.333333 and 0.333333.

Now let's just work a little algebra into all of this. Let's call your original number x. And in this case, x = 0.333333. The number with the decimal point slid over can be called 10x, because 10x = 3.333333

10x = 3.33333

-x = 0.333333\frac{10x = 3.33333  -x = 0.333333}{9x = 3}

---------------------------------------------------------------------------------------------

Now, solving 9x=3 for x by dividing both sides of it by 9, we'll get that x=3/9. And this is your answer.

How is this your answer? Well remember that above, x was originally set equal to 0.333333 via x = 0.333333, and now we have that x is also equal to 3/9, so that means 0.333333 = 3/9..and there's 0.333333 written as a fraction.

-------------------------------------------------------------------------------------------

<u>Simplify 3/9 into the lowest terms:</u>

\frac{1}{3}

4 0
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