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jonny [76]
3 years ago
6

What inequality is shown by the graph?

Mathematics
1 answer:
Gwar [14]3 years ago
4 0

Step-by-step explanation:

2x - 10y > -20

=> x - 5y > -10

or x - 5y +10 > 0

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Which of the following expressions is equivalent to –6?
Inessa [10]

Answer:

the correct answer po is letter A

Step-by-step explanation:

Tinatamad akong mag explain pero tama po 'yan

8 0
3 years ago
What's the error? Jerry says that a cube with edges that measure 10 cm has a volume that is twice as much as a cube with sides t
disa [49]
The quick way to dispute something like this is to simply do the calculation and then create a ratio. 

Cube One (Large Cube)
The formula for a cube is V = e^3 
e = the measurement of an edge. In this case.
e = 10 cm
V = e^3
V = 10^3 = 10*10*10
V = 1000 cm^3

Cube 2 (Small Cube)
V = e^3
e = 5 cm
V = 5*5*5
V = 125 cm^3

Ratio
Large Cube / Small Cube = 1000 / 125 = 8/1.

The difference in size is 8 to 1 not 2 to 1.

Explanation
He's right if he sticks to one side. The ratio of one side of the large cube to the small one is 2 to 1. But once you put that into the formula for volume, three sides are multiplied together and that 2 shows up everytime you multiply the sides together. 

4 0
3 years ago
Cynthia Bech want to buy a rug for a room that i 20 ft wide and ft long. She want to leave a uniform trip of 29 floor around the
Hoochie [10]

On solving the question, we got that - The dimensions of the rug should be 18 feet and 24 feet

<h3>What is area of rectangle?</h3>

By multiplying the rectangle's length by its breadth, we may get its area.

Equiangular quadrilaterals, like rectangles, are known in this way. This is so because a rectangle is a four-sided quadrilateral shape with parallel sides that are equal to one another and four corners with 90o angles. Rectangles are sometimes known as equiangular quadrilaterals since all of its angles are 90 degrees.

the parameters provided;

The room is 20 feet by 26 feet in size.

432 feet2 is the largest area rug she can afford.

If the floor will be a uniform stripe around the rug, then each dimension should have its uniform extra length of floor =  (y).

Area = Length X Width\\432 = ((20=y) X (26-y)\\432 = 520 - 20y - 26y + y^2\\y^2 - 46y+88=0\\

here, a= 1, b= -46, c =88

y = \frac{-b +/- \sqrt{b^2 - 4ac} }{2a} \\\\

y = \frac{-(-46) +/- \sqrt{(-46)^2 - 4X1X88} } {2} \\\\y = 44 \\or\\ y =  2

Therefore, Length = 20-2 = 18 ft

and width = 26-2 = 24ft

To know more about rectangle visit:

brainly.com/question/15019502

#SPJ4

8 0
1 year ago
How to distribute-3(x-(-4))
Lorico [155]
You simplify the expression to -3(x+4), then distribute -3 to x+4. -3•x=-3x and -3•4 is -12 so your final answer is -3x-12
8 0
3 years ago
Suppose a large shipment of compact discs contained 19% defectives. If a sample of size 343 is selected, what is the probability
Yuri [45]

Answer:

The value is  P( | \^p - p | <  0.04) = 0.9408

Step-by-step explanation:

From the question we are told that

    The population proportion is p =  0.19

   The sample size is n = 343

 Generally given that the ample size is large enough , i.e  n > 30 then the mean of this sampling distribution is mathematically represent

      \mu_{x} = p = 0.19

 Generally the standard deviation is mathematically represented as

      \sigma   =\sqrt{\frac{p(1- p)}{n} }

=>   \sigma   =\sqrt{\frac{0.19 (1- 0.19 )}{343 } }  

=>   \sigma   = 0.0212

Generally the the probability that the sample proportion will differ from the population proportion by less than 4% is mathematically represented as

        P( | \^p - p | <  0.04) = P( \frac{|\^ p - p |}{ \sigma_p } <  \frac{0.04}{0.0212 }  )

\frac{|\^ p - p |}{\sigma }  =  |Z| (The  \ standardized \  value\  of  \ |\^ p - p | )

     P( | \^p - p | <  0.04) = P( |Z| <  1.887   )

=>  P( | \^p - p | <  0.04) = P( Z <  1.887   )- P( Z <  -1.887   )

From the z table  the area under the normal curve to the left corresponding to  1.887  and  - 1.887  is

      P( Z <  1.887   )= 0.97042

and  

     P( Z <  -1.887   )= 0.02958

So

     P( | \^p - p | <  0.04) = 0.97042 - 0.02958

=>   P( | \^p - p | <  0.04) = 0.9408

3 0
2 years ago
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