A recent study was conducted to determine the percentage of children who spend at least one hour per week playing video games. The results of the study are displayed in the histogram below. One Hour of Video Games (per week) 100% 80% 60% 40% 20% 0% Age 0-2 Age 3-5 Age 6-8 Age 9-11 Age 12-14 Age 15-17 ​

The mean of the data is 1097.5

A mean in math is the average of a data set, found by adding all numbers together and then dividing the sum of the numbers by the number of numbers. For example, with the data set: 8, 9, 5, 6, 7, the mean is 7, as 8 + 9 + 5 + 6 + 7 = 35, 35/5 = 7.

Mean = summation of item /number of items

summation of item = 4390

number of items = 4

therefore mean = 4390/4

= 1,097.5

therefore the mean if the data is 1,097.5

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the midpoint of the line RS will be (4,7).

What is spherical coordinates?

The coordinate system that is most frequently employed in three-dimensional systems is called spherical coordinates of the system, represented as (r,Ф,∅ ). The surface area in three dimensions is calculated using the spherical coordinate system. Radial distance, polar angles, and azimuthal angle are the three numbers that these coordinates indicate. Additionally known as spherical polar coordinates.

M is the midpoint of R$. Rhas coordinates (2, 5). M has coordinates (6, 9).

The midpoint will be calculated by using the formula below:-

Midpoint = [ ( x₁ + x₂ ) / 2 , ( y₁ + y₂ )  / 2 ]

The given points are  (2,5) and (6,9). The value of the midpoint will be calculated by using the formula above:-

Midpoint = [ ( x₁ + x₂ ) / 2 , ( y₁ + y₂ )  / 2 ]

Midpoint = [ ( 2 + 6 ) / 2 , ( 5 + 9 )  / 2 ]

Midpoint =  [ ( 8 ) / 2 , ( 14 )  / 2 ]

Midpoint =  [ 4 , 7 ]

Therefore, the midpoint of the line RS will be (4,7).

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The smallest angle of rotational symmetry for the polygon is known to be 72 degrees.

This is said to be 72 degrees. Note that  the rotational Symmetry of Pentagons is one that have a lot of sides.

So, a regular pentagon is said to have five equal sides, it means that the polygon can be rotated five times and still be the same like the original.

Hence:

Let n = rotation symmetry

5 = 360/n

n x 5 = 360

n = 360/5

n =  72

Therefore, The smallest angle of rotational symmetry for the polygon is known to be 72 degrees.

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The size of the shift from function f to function g is 12 units down

The table of values is given as

x 0 1 2 3 4

g(x) -11 -10 -8 -4 4

From the question, we understand that the function g(x) is an exponential function

The parent function of an exponential function in this case, is represented as

f(x) = 2^x

When represented on a table of values, we have

x 0 1 2 3 4

f(x) 1 2 4 8 16

So, we have

x 0 1 2 3 4

f(x) 1 2 4 8 16

g(x) -11 -10 -8 -4 4

Notice that the difference between the values of f(x) and g(x) is 12

This means that

g(x) = f(x) - 12

So, we have

g(x) = 2^x - 12

Hence, the size of the shift is 12 units down

See attachment for the graphs of f(x) and g(x)

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Answer:

-3x + 2

Step-by-step explanation:

(5x + 4) + (-8x - 2)

= 5x + 4 -8x - 2

combine like terms

-3x + 2

Ans

=16

Step-by-step explanation:

=4×12/3

= 48/3

=16

Answer: 16

4 * 12 / 3

48/3

16

Brainliest pweasee if my answer is clear and correct! <3 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

Answer:

6a

Step-by-step explanation:

hexagon has 6 sides(im pretty sure lol), and 1 side is a. so 6 sides must be 6a

Answer:

Following are the answer to the given question:

Step-by-step explanation:

Following are the null and alternative Hypothesis:

\(Null \ Hypothesis: \mu = 4\\\\Alternative \ Hypothesis: \mu < 4\)

Rejection Zone

This is left tailed test, for α = 0.2 and df = 39

\(critical\ value(t) = -0.851\\\\reject\ H_0 \ when = t < -0.851\)

Testing statistic:

\(t = \frac{(\bar{x} - \mu)}{( \frac{s}{\sqrt{n}})}\)

  \(= \frac{1.5 - 4}{\frac{5}{\sqrt{40}}}\\\\= \frac{-2.5}{\frac{5}{6.32}}\\\\= \frac{-2.5}{0.79}\\\\ = -3.162\)

\(P-value = 0.0015\)

P-value < 0.2, reject the null hypothesis.

Approach to the Rejection Zone:

The null hypothesis is rejected since the test statistic t is outside of the critical range value. Only at the 0.200 significance mark, there's significant evidence that its new shrub's growth rate is less than 4 cm per week.

Answer:

i really don't know because i'm only in 7th grade but if this helps then yea

Step-by-step explanation:

Step 1: Set up the synthetic division. ...

Step 2: Bring down the leading coefficient to the bottom row.

Step 3: Multiply c by the value just written on the bottom row. ...

Step 4: Add the column created in step 3.

Answer:

Step-by-step explanation:

Cindy was able to make $837 in commission thanks to her commission rate, which equates to $104.62 per hour.

Cindy is a travel agent. She receives a 9% commission based on the value of the trips she books. Today she spent eight hours arranging a $9,300 cruise for a newlywed couple

The commission that Cindy received can be determined by:

= Commission % x Price of booked trip

= 9% x 9,300

= $837

Consequently, the following is her hourly wage:

= Commission received / Hours worked

= 837 / 8

= $104.62

The bottom line is that  made $104.62 per hour plus $837 in commission.

Cindy was able to make $837 in commission thanks to her commission rate, which equates to $104.62 per hour.

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Answer:

2x^3-5x^2-28x+15 -------------------------expanded

2x^3-5x^2-28x+15--------------------simplified

Step-by-step explanation:

\left(2x-1\right)\left(x+3\right)\left(x-5\right)

=2x^2x+2x^2\left(-5\right)+5xx+5x\left(-5\right)-3x-3\left(-5\right)

simplyfied

\left(2x^2+5x-3\right)\left(x-5\right)

=2x^2x+2x^2\left(-5\right)+5xx+5x\left(-5\right)-3x-3\left(-5\right)

=2x^3-5x^2-28x+15

Thus, 4/10 of an hour equals the 24 minutes after the unit conversion from hour to minute.

The translation of such a particular quantity into another unit is known as unit conversion.

given fraction:

4/10 hour

Now, we know :

1 hour = 60 min

to convert the hour in minutes, multiply the fraction with 60.

= 4/10 *60

= 4*6

= 24 minutes

Thus, 4/10 of an hour equals the 24 minutes after the unit conversion from hour to minute.

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The missing number in Sequence 2 is 780.

To find the missing number in Sequence 2, let's analyze the pattern:

In Sequence 1, the numbers increase by 1 each time: 126, 127, 128, 129, ...

In Sequence 2, the numbers seem to follow a pattern where each number is obtained by multiplying the corresponding number in Sequence 1 by a certain factor:

2 x 126 = 252

3 x 127 = 381

4 x 128 = 512

5 x 129 = 645

...

Looking at this pattern, we can see that the missing number in Sequence 2 should be:

6 x 130 = 780

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Answer:

64

Step-by-step explanation:

  6 4

8 4 5 3 7 6  

- 5 0 4

3 3 6

- 3 3 6

0

Answer:

Fathom in reference to what does this line interpret?

Answer:

y = -120

Step-by-step explanation:

Direct variation is

y = kx where k is a constant

9 = k(-3)

Divide each side by -3

9/-3 = k

-3 = k

y = -3x

Let x = 40

y = -3(40)

y = -120

If Jordan’s family exchanges 200 dollars at the same rate, they will have 4000 pesos

If Jordan’s family exchanged 250 dollars for 5000 pesos, then;

250 dollars = 5000 pesos

In order to determine the cost of sweater bought at 550 pesos, we can write:

x = 550 pesos

Divide both expressions

250/x = 5000/550

5000x = 137,500

x = 137,500/5000

x = 27.5

Hence the sweater cost $27.5

If Jordan’s family exchanges 200 dollars at the same rate, then;

$200 = y

250 dollars = 5000 pesos

Dividing both expressions

200/250 = y/5000

250y = 1000000

y = 1,000,000/250

y = 4000pesos

Hence if Jordan’s family exchanges 200 dollars at the same rate, they will have 4000 pesos

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Answer:

200=4000

Step-by-step explanation:

I got it right on my test

Answer:

x = 2

Step-by-step explanation:

\(\frac{x+1}{x+3}\) = \(\frac{3}{5}\) ( cross- multiply )

5(x + 1) = 3(x + 3) ← distribute parenthesis on both sides

5x + 5 = 3x + 9 ( subtract 3x from both sides )

2x + 5 = 9 ( subtract 5 from both sides )

2x = 4 ( divide both sides by 2 )

x = 2

Answer:

d = 2

Step-by-step explanation:

Using the formula

A=pq/2

Dont forget to click THANKS

The multiplication 3/4×8/9 can be used to address the problem in response (B). which is the correct answer that would be an option (B).

In mathematics, Multiplication operations perform Multiplying values on either side of the operator.

For example 4×2 = 8

As per option (B),

Jada rode her bike for 3/4 mile. Sarah rode her bike 8/9 the distance that Jada rode her bike.

Sarah rides her bike = Sarah rode (8/9) of the (3/4) that Jada rode.

Sarah rides her bike = 3/4 × 8/9

Therefore, this problem can be solved by performing the above multiplication.

Hence, the correct answer would be an option (B).

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Answer:

A. The slope of Birch Street is 0. To be perpendicular to Elm, Birch would have to have a slope of negative 4/7.

Step-by-step explanation:

I had this same question on Gradpoint and got it correct.

Answer:

(x+8)^2+y^2=16

Step-by-step explanation:

The equation for a circle in center-radius form is

(x-h)^2+(y-k)^2=r^2

where (h,k) is the center and r is the radius.

We are given the diameter is 8 so the radius is 8/2=4.

We are also given (h,k) is (-8,0).

The equation for the circle is

(x--8)^2+(y-0)^2=4^2

(x+8)^2+y^2=16

The ordered pairs are (1,0), (2,6/5),(3,12/5)

The solution of a linear equation is defined as the points, in which the lines represent the intersection of two linear equations. In other words, the solution set of the system of linear equations is the set of all possible values to the variables that satisfies the given linear equation.

Given here: The equation as y = 6x/5 - 6/5

putting (1,0) in the equation we get 6×1/5-6/5=0

Similarly we can find the ordered pair as y = 6/5x - 6/5

Hence, The ordered pairs are (1,0), (2,6/5),(3,12/5)

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Answer:

40.5

Step-by-step explanation:

diameter^2 = (3 +6)^2 + (5+4)^2

or, d^2 = 9^2 + 9^2

or, d^2 = 81 +81

or,d^2 =162

or d=√ 162

• d= 81

then radius = d/2

r = 81/2

•r= 40.5 ans

The Pythagoras theorem states that in a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the other two sides.

From the given Pythagoras theorem above, the mathematical representation of the theorem would be written below as follows;

C² = a²+b²

Where:

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Answer:

\(\frac{8}{x}\)

Step-by-step explanation:

what is the sum 3/x+9+5/x-9

\(\frac{3}{x} + 9 + \frac{5}{x} - 9 =\)     (add \(\frac{3}{x}\) and \(\frac{5}{x}\))

\(\frac{8}{x} + 9 - 9 =\)            (solve 9 - 9 = 0)

\(\frac{8}{x}\)                           ( your answer)

Answer:

Both isometric and orthographic views can be helpful in building a house, but each serves a different purpose and has its own advantages and disadvantages. Isometric views provide a realistic 3D view that is easy to understand, while orthographic views provide precise measurements and dimensions. Depending on the stage of the design and construction process, one or both views may be helpful in building a house.

Step-by-step explanation:

Both isometric and orthographic views can be helpful in building a house, but they serve different purposes and have different advantages and disadvantages.

Isometric view:

An isometric view is a 3D representation of an object that shows all three dimensions (length, width, and height) in a single view. It is a type of axonometric projection, meaning that the angles between the axes are equal. An isometric view can be helpful in building a house in the following ways:

Advantages:

Provides a realistic 3D view of the house that is easy to understand and visualize.

Shows the spatial relationships between different elements of the house.

Can be used to identify potential design issues before construction begins.

Disadvantages:

Does not provide precise measurements or dimensions.

Can be difficult to draw accurately without the use of specialized software.

Can be distorted depending on the orientation and scale of the view.

Orthographic view:

An orthographic view is a 2D representation of an object that shows each face or side of the object separately. It is a type of parallel projection, meaning that the lines of sight from the viewer to the object are parallel. An orthographic view can be helpful in building a house in the following ways:

Advantages:

Provides precise measurements and dimensions for each face or side of the house.

Can be used to create detailed plans and blueprints for construction.

Allows for accurate scaling and measurement of the house.

Disadvantages:

Does not provide a 3D view of the house, which can make it difficult to understand how different elements of the house relate to each other in space.

Can be difficult to visualize the final product based solely on orthographic views.

May require multiple views to fully represent the house, which can be time-consuming and require more specialized knowledge.

In conclusion, both isometric and orthographic views can be helpful in building a house, but each serves a different purpose and has its own advantages and disadvantages. Isometric views provide a realistic 3D view that is easy to understand, while orthographic views provide precise measurements and dimensions. Depending on the stage of the design and construction process, one or both views may be helpful in building a house.

9514 1404 393

Answer:

  x = 3

Step-by-step explanation:

The products of segment lengths for the two chords are the same.

  x(15) = (9)(5)

  x = 9·5/15 . . . . . divide by 15

  x = 3 . . . . . . simplify