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jekas [21]
4 years ago
5

Need help with this asap!!!

Mathematics
2 answers:
Hatshy [7]4 years ago
8 0

Answer: C) x - 3 = 49


Step-by-step explanation: X represents the number that we are subtracting things from. 3 is how much (the number that we are) subtracting. 49 is the difference/answer. The problem is pretty much asking us to subtract 3 from x and get 49 as the answer. So, if you wrote that mathematically, the answer would be x - 3 = 49.

Hope that helped, fam!

-Une :D


Vlad [161]4 years ago
6 0

Answer:

C x-3

Step-by-step explanation:

3 less than x - 49

Is means =

less than means -  (reversing the order)

x-3 = 49

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When we do this, the base of the parallelogram has length b 1 + b 2, and the height is the same as the trapezoids, so the area of the parallelogram is (b 1 + b 2)*h. Since the two trapezoids of the same size created this parallelogram, the area of one of those trapezoids is one half the area of the parallelogram

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Roman55 [17]

Answer:

1). 1.25 / 250 = .005M

.005 = 1 liter

2). (20)(.5) = 10M

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6 0
3 years ago
2x^2 + 2y^2 - 8x + 10y + 2 =0
scoray [572]

A circle of radius <em>r</em> centered at (<em>a</em>, <em>b</em>) has equation

(<em>x</em> - <em>a</em>)² + (<em>y</em> - <em>b</em>)² = <em>r </em>²

To get the given equation in this form, complete the square with respect to both <em>x</em> and <em>y</em>.

2<em>x</em>² - 8<em>x</em> = 2 (<em>x</em>² - 4<em>x</em>)

2<em>x</em>² - 8<em>x</em> = 2 (<em>x</em>² - 4<em>x</em> + 4 - 4)

2<em>x</em>² - 8<em>x</em> = 2 ((<em>x</em> - 2)² - 4)

2<em>x</em>² - 8<em>x</em> = 2 (<em>x</em> - 2)² - 8

2<em>y</em>² + 10<em>y</em> = 2 (<em>y</em>² + 5<em>y</em>)

2<em>y</em>² + 10<em>y</em> = 2 (<em>y</em>² + 5<em>y</em> + 25/4 - 25/4)

2<em>y</em>² + 10<em>y</em> = 2 ((<em>y</em> + 5/2)² - 25/4)

2<em>y</em>² + 10<em>y</em> = <u>2 (</u><u><em>y</em></u><u> + 5/2)² - 25/2</u>

So we have

2<em>x</em>² + <u>2</u><u><em>y</em></u><u>²</u> - 8<em>x</em> + <u>10</u><u><em>y</em></u> + 2 = 0

2 (<em>x</em> - 2)² - 8 + <u>2 (</u><u><em>y</em></u><u> + 5/2)² - 25/2</u> + 2 = 0

2 (<em>x</em> - 2)² + 2 (<em>y</em> + 5/2)² = 37/2

(<em>x</em> - 2)² + (<em>y</em> + 5/2)² = 37/4

(<em>x</em> - 2)² + (<em>y</em> + 5/2)² = ((√37)/2)²

which means this circle has radius (√37)/2 and center (2, -5/2).

8 0
3 years ago
1) a saloon car priced at $25000 is increased by 5%. what is the new price? 2) a shop is having a sale of computers. if a comput
Komok [63]

Answer:

1)  $26,250

2) $640

3) 9200

4) $212.50

5) $2300

6) $4320

Step-by-step explanation:

To increase a value:

convert the percent into decimal by dividing by 100.  Add this to 1.  Multiply this by the original value.

To decrease a value:

convert the percent into decimal by dividing by 100.  Subtract this from 1. Mulitply this by the original value

1) 25000 x 1.05 = $26,250

2) 800 x 0.8 = $640

3) 8000 x 1.15 = 9200

4) 250 x 0.85 = $212.50

5) 2000 x 1.15 = $2300

6) 7200 x 0.6 = $4320

4 0
3 years ago
7 more than twice a number x
torisob [31]
So,

"7 more than"
7 +

"twice a number x"
2 * x or 2x

"7 more than twice a number x"
7 + 2x or 2x + 7
5 0
4 years ago
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