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Paul [167]
2 years ago
10

dina called her friend to tell her that she saved 30% on her new skirt at a discount store. Her friend told her that she could h

ave gotten a better deal at a different store that was advertising 1/3 off of all clothing. If the original price of Dima's skirt was $54, how much more could she have saved at the store her friend suggested
Mathematics
1 answer:
Triss [41]2 years ago
4 0

Answer:

She could have saved 1.8 more dollars.

Step-by-step explanation:

30% is the same as 0.3. 0.3 times 54$ is 16.2$. 1/3 times 54$ is 18$. 18$ - 16.2$ is 1.8$.

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Which statement is true about the function f(x)= StartRoot negative x EndRoot?
UNO [17]

Answer:

The domain of the graph is all real numbers less than or equal to 0

Step-by-step explanation:

we have the function

f(x)=\sqrt{-x}

we know that

The radicand must be positive

so

-x \geq 0

Solve for x

Multiply by -1 both sides

x\leq 0

The domain is the interval ------> (-∞,0]

All real numbers less than or equal to zero

The range of the function is the interval -----> [0,∞)

f(x)\geq 0

see the attached figure to better understand the problem

All real numbers greater than or equal to zero

<em><u>Verify each statement</u></em>

case 1) The domain of the graph is all real numbers

The statement is false

Because, the domain is all real numbers less than or equal to zero

case 2) The range of the graph is all real numbers

The statement is false

Because, the range is all real numbers greater than or equal to zero

case 3) The domain of the graph is all real numbers less than or equal to 0

The statement is true

case 4) The range of the graph is all real numbers less than or equal to 0

The statement is false

Because, the range is all real numbers greater than or equal to zero

4 0
3 years ago
Read 2 more answers
Please help I will mark brainliest for correct answers!​
Talja [164]

Answer:

E

Step-by-step explanation:

Well there is a lot more higher numbers than lower numbers, so the box would be closer to the right, and the left rectangle piece should be smaller than that of the left rectangular piece.

7 0
3 years ago
Read 2 more answers
Write the standard equation of the ellipse with center at the origin, and vertices at (-4,0), (4,0), (0, -3), and (0,3).
levacccp [35]

9514 1404 393

Answer:

  (a)  x^2/16 +y^2/9 = 1

Step-by-step explanation:

The form for the equation of an ellipse centered at the origin is ...

  (x/(semi-x-axis))^2 +(y/(semi-y-axis))^2 = 1

The vertex values tell you the semi-x-axis is 4 units, and the semi-y-axis is 3 units. Then you have ...

  (x/4)^2 +(y/3)^2 = 1

  x^2/16 +y^2/9 = 1

__

In case you don't remember that form, you can try any of the points in the equations. The equation that works will quickly become apparent.

5 0
3 years ago
A normal distribution has a mean of 85.3 and a standard deviation of 4.85. Find the data value corresponding to the value of z g
Mazyrski [523]

Answer: 87.9675

Step-by-step explanation:

Formula for z:

z=\dfrac{x-\mu}{\sigma}, where x= data value corresponding to z, \mu = mean, \sigma = standrad deviation.

Given: \mu =85.3, \sigma =4.85, z=0.55

To find : x

0.55=\dfrac{x-85.3}{4.85}\\\\\Rightarrow\ 0.55\times4.85=x-85.3\\\\\Rightarrow\ 2.6675=x-85.3\\\\\Rightarrow\ x=85.3+2.6675\\\\\Rightarrow\ x=87.9675

Hence, The required data value= 87.9675

6 0
3 years ago
What is the area of a rectangle that is \dfrac1{2} 2 1 ​ start fraction, 1, divided by, 2, end fraction of a meter long and \dfr
sashaice [31]

Answer:

Area = \frac{3}{16} m^2

Step-by-step explanation:

Given

Shape: Rectangle

Length = \frac{1}{2}\ m

Width = \frac{3}{8}\ m

Required

Determine the area of the rectangle;

Area is calculated as thus;

Area = Length * Width

Substitute values for Length and Width

Area = \frac{1}{2} * \frac{3}{8}

Area = \frac{1 * 3}{2 * 8}

Area = \frac{3}{16}

<em>Hence, the area of the rectangle is </em>\frac{3}{16}m^2<em />

5 0
3 years ago
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