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egoroff_w [7]
3 years ago
15

Each of 7 students reported the number of movies they saw in the past year. Here is what they reported.

Mathematics
1 answer:
SIZIF [17.4K]3 years ago
3 0

Answer:

mean=12

Step-by-step explanation:

First, order the data like so.

5, 7, 12, 12, 16, 17, 17

Then add them all up.  

It is a sum of 86.

Finally divide

86/7=12.2

Since 12.2 movies aren't possible, let's say the mean is 12

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Divide x to the 5 eighths power divided by x to the 1 fourth power.
8_murik_8 [283]

\frac{x^{5/8}}{x^{1/4}} = x^{5/8-1/4}= x^{5/8-2/8}= x^{3/8}   or  \sqrt[8]{x^3}

8 0
3 years ago
A factory made about 75,000 robots last year. The actual number of robots made was rounded to the nearest thousand. What is the
Alex777 [14]
The greatest number of robots: 74999
The least number of robots: 74499
6 0
3 years ago
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What is the rule for the reflection ?
Zolol [24]

Answer:

This idea of reflection correlating with a mirror image is similar in math.

This complete guide to reflecting over the x axis and reflecting over the y axis will provide a step-by-step tutorial on how to perform these translations.

 First, let’s start with a reflection geometry definition

Math Definition: Reflection Over the X Axis

A reflection of a point, a line, or a figure in the X axis involved reflecting the image over the x axis to create a mirror image. In this case, the x axis would be called the axis of reflection.

Math Definition: Reflection Over the Y Axis

A reflection of a point, a line, or a figure in the Y axis involved reflecting the image over the Y axis to create a mirror image. In this case, theY axis would be called the axis of reflection.

What is the rule for a reflection across the X axis?

The rule for reflecting over the X axis is to negate the value of the y-coordinate of each point, but leave the x-value the same.

3 0
3 years ago
Is (3,4) a solution to the system of<br> equations. <br> X + y = 7<br> x - 2y = - 5
Anuta_ua [19.1K]

Answer: Yes, the point (3,4) is a solution to the system.

===================================================

Proof of this:

Replace x with 3 and y with 4 in the first equation

x+y = 7

3+4 = 7

7 = 7

This confirms the first equation. Repeat for the second equation

x-2y = -5

3-2(4) = -5

3 - 8 = -5

-5 = -5

We get true equations for both when we plug in (x,y) = (3,4). This confirms it is a valid solution to the system of equations. It turns out it's the only solution to this system of equations. Visually, the two lines cross at the single location (3,4).

8 0
3 years ago
Please help! Brainliest to correct
vivado [14]

Answer:

Step-by-step explanation:

x +3 I x⁴ + 0x³ - 6x² + 0x  -28 I x³ - 3x² + 3x - 9

         x⁴ + 3x³

       <u>-       -      </u>

                -3x³ - 6x²

                -3x³ - 9x²

               <u>  +      +     </u>

                        3x² + 0x

                       3x²  + 9x

                       <u> -       -       </u>

                                -9x  -28

                                -9x  - 27

                                <u> +      +    </u>

                                         -1

P(x) =(x +3)* (x³ - 3x² + 3x - 9) + (-1)

7 0
3 years ago
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