Can someone please explain this to me or help me understand it?? It’s in module3

Answer:

Sum = 4(2) + 5(1) + 6(2) + 7(0) + 8(2) + 9(1)

= 8 + 5 + 12 + 0 + 16 + 9

= 50

Mean = Sum/Frequency

= 50/8

= 6.25 rings

Answer:

Step-by-step explanation:

You want the Sum and Mean of the number of rings as listed in the given table.

The "frequency" line tells you the number of times the value above is included in the list. The expanded list of number of rings, taking frequency into account, is ...

  {4, 4, 5, 6, 6, 8, 8, 9}

The sum of these numbers is 50.

The average of these 8 numbers is 50/8 = 6.25.

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Answer: the bag 33.33 ect and the selecting of a red ball is 90%

Step-by-step explanation:

if a bag had three red balls, one blue ball and there are four ball intotal you would most likely get a red ball out of blue the other 10% is the blue ball and for the bags answer is just 100 divided by 3

Answer: C

Step-by-step explanation:

Median is not accurate, and mode isn't either. 26 and 71 are kind of far apart, but not too far, and there are two 71s. This makes the average an accurate representation.

A is best represented by median, since the numbers have such a small range.

B and D each have one number that's an outlier, so the average wouldn't accurately represent it.

Hope this helps!

Mean of team A  < Mean of team B

MAD of team A < MAD of team B

Now, We can simplify as,

The double dot plot shows the runs scored per game by two baseball teams during a 10 game seasons.

Now, We can find the value of mean as,

For team A,

Mean = (2 x 1 + 3 x 1 + 4 x 4 + 5x 2 + 6 x 1 + 7 x 1) / 10

Mean = (2 + 3 + 16 + 10 + 6 + 7) / 10

Mean = 44 / 10

Mean = 4.4

For team B;

Mean = (2 x 1 + 5 x 2 + 6 x 4 + 7 x 2 + 9 x 1) / 10

Mean = 59/10

Mean = 5.9

MAD for both team are,

For team A;

MAD = |4.4 - 2| + |4.4 - 3| + 4 |4.4 - 4| + 2 |4.4 - 5| + |4.4 - 6| + |4.4 - 7| / 10

MAD = 2.4 + 1.4 + 1.6 + 1.2 + 1.6 + 2.6 / 10

MAD = 1.08

For team B;

MAD = |5.9 - 2| + 2|5.9 - 5| + 4 |5.9 - 6| + 2 |5.9 - 7| + |5.9 - 9| / 10

MAD = 3.9 + 1.8 + 0.4 + 2.2 + 3.1 / 10

MAD = 1.14

Hence,

Mean of team A  < Mean of team B

MAD of team A < MAD of team B

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Answer:1152 ft^2

Step-by-step explanation:

Answer:

y = -2x

Step-by-step explanation:

the line passes through the origin (where both x and y are 0...they both meet).

that rules out it being the X +4 and x - 4 options.

the line goes from top left to bottom right, indicating that the gradient is negative. the gradient value if the number of front of the x in the equation.

negative gradient is a minus sign.

so our answer is y = -2x

Answer:

Step-by-step explanation:

First, you need to know all the numbers. 4 occurs twice, 5 occurs once, 6 occurs twice, 7 doesn't occur, 8 occurs twice, and 9 occurs once. So, if you laid it out, it would look like this: 4,4,5,6,6,8,8,9.

So to find the sum, you add all of those together which will give you 50.

To find the mean, you will need to find the sum (50) and divide that by the number of values which can be shown as : 50/8 or 6 1/4.

So, the sum would be 50 and the mean would be 6 1/4.

Answer:

List: 4,4,5,6,6,8,8,9

Sum: 50

Mean: 6.25

Step-by-step explanation:

List: 4,4,5,6,6,8,8,9

(Frequency means number of times that the heading above occurs)

Sum: 50 (add them up)

Mean: 50/8=6.25 (Divide the sum by number of terms)

Answer: List: 4,4,5,6,6,8,8,9

Sum: 50

Mean: 6.25

Step-by-step explanation: just trying to make it simple:)

Answer: D

Step-by-step explanation:

(x-4)²-20

(x-4)(x-4)-20

(x^2)-8x+16-20

= (x^2)-8x-4

D is the same equation as in the question, just written in another form (they are equal). In this form (vertex), the vertex is (h,k), which is easily found in this equation. The vertex reveals the maximum or minimum. The vertex in this problem is (4,-20) because vertex form is f(x)=a(x-h)^2 + k.

Answer:

Area of five squares = 1289.09 square units

Perimeter =  194.6 units

Step-by-step explanation:

Area of square and perimeter:

   First find the length of each square, then find the area of each square.

To find the area of five squares, add all the area of each square.

Side of square1 = 27 units

[tex]\sf Side \ of \ square2 = \dfrac{2}{3}*27=2*9 = 18 \ units\\\\Side \ of\ square3= \dfrac{2}{3}*18=2*6=12 \ units\\\\Side \ of \ square4=\dfrac{2}{3}*12=2*4=8 \ units\\\\Side \ of \ square5=\dfrac{2}{3}*8=\dfrac{16}{3}=5.3 \ units[/tex]

Area of square1 = 27*27 = 729 square units

Area of square2 = 18*18 = 324 square units

Area of square3 = 12*12 = 144 square units

Area of square4 = 8*8 = 64 square units

Area of square5 = 5.3*5.3 = 28.09 square units

Area of five squares = 729 + 324 + 144 + 64 +28.09

                                  = 1289.09 square units

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Perimeter of the composite figure = (27 + 27+27+9) + (18+18+6) +(12+12+4) + (8+8+2.7)+ (5.3+5.3+5.3)

                                                         = 90 + 42 + 28 + 18.7 + 15.9

                                                          = 194.6 units

Answer: 23.04

Step-by-step explanation:

2.0*2.0= 4.0

2.4*2.4= 5.76

4.0*5.76= 23.04

Answer: The area of the given shape is 9.734 meter square

Step-by-step explanation:

The given shape is a square with 4 sides of equal dimensions "a",

Area of Square = Square of its side "a"

Here, a = Hypotenuse of the inner triangle

Step 1: Get the hypotenuse value of the inner right triangle as the base and height dimensions of the right triangle is given.

Step 2: By using Pythagoras theorem,

Square of the base + Square of the height = square of the Hypotenuse

(2.4)^2 + (2.0)^2 = 9.76

Therefore the value of the hypotenuse = 3.12m

The area of the square = 9.734 meter square.

Answer: $125

Step-by-step explanation:

1/80=x/10,000

10,000/80=125

Hope this helped!

Answer:125 yen

Step-by-step explanation:
Ratio and proportion

Ratio=1:80=x:10,000

x represents dollars which is unknown

1/80=x/10,000

Then you cross multiply

80x=10,000

80x/80=10,000/80

x=125

Therefore,$125 will give you 10,000yen

Answer: [tex]y = \frac{1}{4} x - 1[/tex]

Step-by-step explanation: In general, know that the equation for a linear graph is [tex]y = mx + b[/tex], where

In our case,

The product of two whole numbers is always a whole number i.e. if 'a' and 'b' are any two whole numbers, their product will also be a whole number.

The multiplication of any two numbers can be expressed as the repeated addition of one number. So, for example, if we add a whole number to itself again and again, then we will definitely be left with the result of a whole number.

Let's assume

a = 2, b = 3.

a × b = 2 × 3 = 6

This is the same thing as adding '2' three times to itself, which will result in a whole number, which is 6 in this case.

Let's take another example 0 and 7. The product of these numbers is:

a = 0, b = 7

a × b =  0 × 7 = 0

As we know, 0 is also a whole number. Through these examples, we can understand that the product of two whole numbers is always a whole number.

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Answer: Yes, the product of two whole numbers is always a whole number.

Step-by-step explanation:

Example 1:

Let's take the whole numbers 4 and 3.

The product of 4 and 3 is 12, which is also a whole number.

4 x 3 = 12

Example 2:

Now let's take the whole numbers 7 and 2.

The product of 7 and 2 is 14, which is also a whole number.

7 x 2 = 14

Whole numbers include all positive numbers starting from zero and continuing indefinitely in the positive direction. Whole numbers do not include fractions, decimals, or negative numbers. Example- 0,1,2...

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Answer: it will take Alex approximately 42.86 seconds to catch up to Victor.

Step-1:- To determine the time it will take for Alex to catch up to Victor, we can use the concept of relative speed.

The relative speed = Seed of victor+ Speed of Alex brother

relative speed=  18 km/hr + 24 km/hr = 42 km/hr.

Step-2 :- Since Alex is starting from 1/2 km away from the house, the distance he needs to cover to catch up to Victor is also 1/2 km.

Using the formula: time = distance / speed

therefore time = [tex]\frac{1/2}{42}[/tex] we can calculate the time it will take for Alex to catch up to Victor:

time = [tex]\frac{1}{2} \frac{1}{42}[/tex]/hr = 0.0119 hours or

Now Converting hours into seconds

1 hr = 3600 seconds

0.0119 hr = 0.0119×3600 seconds

               Time  = 42.86 seconds.

Answer:

1st one 8/20

Step-by-step explanation:

This theorem states that [tex]a^2+b^2=c^2[/tex], where c is the hypotenuse of a triangle and a and b are the legs (the other two sides).

As we can see from the image, we are given the lengths of the hypotenuse and one of the legs. Now, we must find x, the length of the other leg.

[tex]a^2+b^2=c^2[/tex]

Plug in the given lengths:

[tex]5^2+b^2=13^2[/tex]

Solve for b:

[tex]b=-12,12[/tex]

Since length cannot be negative, we know that b must be equal to 12.

x = 12 ft

The Pythagorean Theorem

This theorem states that , where c is the hypotenuse of a triangle and a and b are the legs (the other two sides).

Solution

As we can see from the image, we are given the lengths of the hypotenuse and one of the legs. Now, we must find x, the length of the other leg.

Plug in the given lengths:

Solve for b:

Since length cannot be negative, we know that b must be equal to 12.

Answer

x = 12 ft

Answer:

96in³

Step-by-step explanation:

Area of trapezium = ½ X (sum of parallel sides) X distance between them

= 1/2 (4 + 12) X 6

= 1/2 X 16 X 6

= 48.

volume = 2 X 48

= 96in³

Answer:There are 15 Pennie’s in the piggy banks

Step-by-step explanation:

X=1,2,3,4,5

Y=2,4,6,8,10

Total pennies=15