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andre [41]
3 years ago
11

Is there a solution for (2x-4) ≥ -10

Mathematics
1 answer:
Effectus [21]3 years ago
4 0
2x-4≥-10  add 4 to both sides

2x≥-6  divide both sides by 2

x≥-3

There are infinitely many solutions as x=[-3, +oo)
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1
Monica [59]

Answer:

1/6

Step-by-step explanation:

Gold bracelets = 2

Silver bracelets = 2

Total bracelets

= 2 + 2

= 4

P(both silver bracelets)

= (2/4)(1/3)

=1/6

3 0
3 years ago
Help im diening please
Alina [70]

Answer:

y = x + 3

Step-by-step explanation:

To know which of the equations represent the relationship between x and y, you need to substitute the x and y values into the equation. If when the equation is solved, the left-hand and right-hand side of the equation equal each other and hence the equation is true, then the equation must be correct in expressing the relationship between the x and y values. If not, then it is not correct.

As this question is only dealing with linear equations, we know that the gradient of the line is constant and hence the rate of change in x and y values is constant. Therefore, we can choose to substitute any of the given combinations of x and y values into the equation to obtain the correct equation. As it is easier to use smaller numbers for smaller calculations, we'll use the first combination of x = 1 and y = 4 .

<em>Equation</em><em> </em><em>No</em><em>.</em><em> </em><em>1</em><em> </em><em>:</em><em> </em><em>y</em><em> </em><em>=</em><em> </em><em>3x</em><em> </em><em>+</em><em> </em><em>1</em><em> </em><em>where</em><em> </em><em>x</em><em> </em><em>=</em><em> </em><em>1</em><em> </em><em>,</em><em> </em><em>y</em><em> </em><em>=</em><em> </em><em>4</em><em> </em><em>and</em><em> </em><em>x</em><em> </em><em>=</em><em> </em><em>2</em><em> </em><em>,</em><em> </em><em>y</em><em> </em><em>=</em><em> </em><em>5</em>

( 4 ) = 3 ( 1 ) + 1

4 = 4

However, as this equation has a constant not equal to 1 in front of the x variable and hence a different gradient to the other equations, we will substitute the second combination of x and y values.

( 5 ) = 3 ( 2 ) + 1

5 = 6

Therefore, equation is false / incorrect.

<em>Equation</em><em> </em><em>No</em><em>.</em><em> </em><em>2</em><em> </em><em>:</em><em> </em><em>y</em><em> </em><em>=</em><em> </em><em>x</em><em> </em><em>+</em><em> </em><em>1</em><em> </em><em>where</em><em> </em><em>x</em><em> </em><em>=</em><em> </em><em>1</em><em> </em><em>,</em><em> </em><em>y</em><em> </em><em>=</em><em> </em><em>4</em>

( 4 ) = ( 1 ) + 1

4 = 2

Therefore, equation is false / incorrect.

<em>Equation</em><em> </em><em>No</em><em>.</em><em> </em><em>3</em><em> </em><em>:</em><em> </em><em>y</em><em> </em><em>=</em><em> </em><em>x</em><em> </em><em>+</em><em> </em><em>3</em><em> </em><em>where</em><em> </em><em>x</em><em> </em><em>=</em><em> </em><em>1</em><em> </em><em>,</em><em> </em><em>y</em><em> </em><em>=</em><em> </em><em>4</em>

( 4 ) = ( 1 ) + 3

4 = 4

Therefore, equation is true / correct.

<em>Equation</em><em> </em><em>No</em><em>.</em><em> </em><em>4</em><em> </em><em>:</em><em> </em><em>y</em><em> </em><em>=</em><em> </em><em>x</em><em> </em><em>-</em><em> </em><em>3</em><em> </em><em>where</em><em> </em><em>x</em><em> </em><em>=</em><em> </em><em>1</em><em> </em><em>,</em><em> </em><em>y</em><em> </em><em>=</em><em> </em><em>4</em>

( 4 ) = ( 1 ) - 3

4 = - 2

Therefore, equation is false / incorrect.

8 0
3 years ago
180°=62.8°+x°+(2x-44.8). What does x equal?
Vika [28.1K]

Answer:

180°=62.8°+x°+(2x-44.8)

x=54

7 0
3 years ago
A rectangular prism has a width of 3 inches, and height of 4 inches, and a width of 5 inches. If the height is doubled, what hap
EastWind [94]

Answer: If the height is doubled the volume becomes a bigger number so 3 times 2 is 6 and 4 times 2 is 8 then 5 times 2 is 10.  6+8+10=24

Step-by-step explanation:

3 0
3 years ago
The area of a rectangular dog pen is 8 1/2 square feet. If the width is 3 2/5 feet, what is the length ,in feet ?
victus00 [196]

Answer:

2 1/2 ft

Step-by-step explanation:

Area is given by the formula

A = l*w

We know the area is 8 1/2  

Changing this to an improper fraction  8 1/2 = (2*8 +1)/2 = 17/2

The width is 3 2/5  as an improper fraction  = (5*3+2)/5 = 17/5

A = l*w

17/2 = l* 17/5

Multiply each side by 5/17

17/2 * 5/17 = l* 17/5 * 5/17

5/2 = l

2 1/2 = l


4 0
3 years ago
Read 2 more answers
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