Answer this maths challenge question to earn 20... points!! :0

Answer: 3.8 then -3.8

3.8 then 3.8

Jason has a greater value

Answer:

Therefore -3.8 has a final greater value. (Jason)

Step-by-step explanation:

|-3.8| = 3.8

The opposite of 3.8 is -3.8.

The opposite of -3.8 is |-3.8| (or 3.8).

The absolute value is 3.8

Explanation:

The data from the stem-and-leaf plot is:

10,

24,25,26,

30,30,32,33,

40,45,46

Add up those values

10+24+25+26+30+30+32+33+40+45+46 = 341

Then divide over n = 11 which is the sample size.

341/11 = 31 is the arithmetic mean.

Answer:

341/11 = 31 is the arithmetic mean.

Step-by-step explanation:

Answer:

-1020

Step-by-step explanation:

Because . is also called in mathematics x so -17 x -5 x -12 it will give you -1020

Answer:

CFD and DFE

Step-by-step explanation:

Supplementary angles are 2 angles that equal 180 degrees.

Answer:

angles EFB and BFC

angles CFD and DFE

Step-by-step explanation:

Both pairs of angles are supplementary because they are adjacent and have a sum of 180 degrees

Answer:

Mean = 33.7

Median = 34.5

Mode = 34

Range = 33

After adding 26....

mean decreases by 0.7

median decreases by 0.5

mode is 34

range is 33

Step-by-step explanation:

mean = sum of all the data values/number of data values

= (18 + 19 + 20  + 34 + 34 + 35 + 37 + 42 + 47 + 51)/10
= 337/10
= 33.7

To find median arrange the values in increasing order, find the mid value

If the number of data points is even, find the average of the mid 2 data values

Arranging data values we get:
18, 19, 20, 34, 34, 35, 37, 42, 47, 51

Since there are 10 data values, take the average of the middle two:
(34 + 35)/2 = 34.5

The mode is the value that occurs most often. We see that there are two instances of 34 whereas the other values appear only once

Mode = 34

The range is highest - lowest = 51 - 18 = 33

After we add 26, we get the following data set arranged

18, 19, 20, 26, 34, 34, 35, 37, 42, 47, 51

we can calculate the stats using the same technique as above

We get the following values

mean = )(18 + 19 + 20 + 26 + 34 + 34 + 35 + 37 + 42 + 47 + 51)/11
= 33  

median = 34

mode = 34

range = 51-18 = 33

To find the decrease in mean and median subtract from the first set of values

Answer: Train A is (Faster) than train B

Step-by-step explanation:

On the graph the y coordinate 70 intersects  with the x coordinate 1 on the line. So, train B is traveling at 70x, they tell us train A is moving at 74x which is higher up and therefore would have a steeper line. Meaning it would be traveling at a faster rate.

Answer: Train A is "Faster" than train B

Step-by-step explanation:

Give other guy brainliest please:)

Part 1.

A is.

45 and 34 wood pieces left

B is.

It takes 11 cause 100-89=11 and 11+89=100 and it keeps subtracting 11.

C is.

I dont understand the question(sorry)

D is.

At least 9 shelves,

100-11=89

89-11=78

78-11=67

67-11=56

56-11=45

45-11=34

34-11=23

23-11=12

12-11=1

And you would have 1 wood piece remaining!!

Answer:

The estimated answer is 400.

Step-by-step explanation:

Sticker price is $230

Store is having a sale, 20% off sticker price.

So first you have to do, $230 x 20% to get the price of 20%. Which is 46. Since it says off, you have to subtract. We just found out that $46 is 20%, we have to now take $46 away from the original sticker price, $230, So do

230 - 46, and you get 184. Therefore, $184 is the sticker price after the 20% sale. Now you add $184 to the price of the TV, $192. So do 192 + 184, which is 376. If you want to estimate it, it would be $400.

Answer:

around 84.4

Step-by-step explanation:

you add the original price then the store price since that's how much they marked it up and the total would be 422 then you would find 20 percent of 422.

Answer:

51

Step-by-step explanation:

1/5 of 255 is 51

Answer:

51 time

Step-by-step explanation:

I just know. May god bless your day.

<3

Answer:

Step-by-step explanation: first divide 24 by 3 to get the price per foot which is 3

Plug in to solve the chart.

3, 4, 72, 40

In the given case, The subject is Mathematics and the cost per foot of lumber is $3.

The subject of this question is Mathematics. The question involves buying lumber from a home improvement store, which is related to the concept of measuring and calculating lengths. To determine the cost per foot of lumber, we can use the formula:

Cost per foot = Total cost / Total length

In this case, the total cost is $24 and the total length is 8 feet. So, the cost per foot of lumber is:

Cost per foot = $24 / 8 = $3

Therefore, each foot of lumber costs $3.

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Answer:

15

Step-by-step explanation:

speed equals d/t so 30/2 = 15 your welcome

Answer:

15 cm per minute

We know:

Distance: 30 cm

Time: 2 minutes

We want to find:

x cm per 1 mintue

Work:

Speed is equal to the distance divided by the time, so

30 / 2 = 15 cm per minute

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.

- Heather

Answer:

Step-by-step explanation: the answer is a

Answer: A, E

Hope it helps! :)

Answer:

576 ft²

Step-by-step explanation:

Large rectangle:

21·36=756

Smaller rectangle:

15·12=180

Find leftover area:

756-180

=576 ft²

Hope this helps! :)

Answer:

The area that is left for development in the field outside the playground is 576 ft².

Step-by-step explanation:

To calculate the area left for development in the field outside the playground, we need to subtract the area of the smaller rectangle from the area of the larger rectangle.

The area of a rectangle is the product of its width and length:

\(\boxed{\sf Area\;of\;a\;rectangle=width \times length}\)

The dimensions of the larger rectangle are:

The dimensions of the smaller rectangle are:

Therefore, the development area can be calculated as follows:

\(\begin{aligned}\sf Development \;area&=\sf Area_{large\;rectangle}-Area_{small\;rectangle}\\\\&=(21 \times 36)-(15 \times 12)\\\\&=756-180\\\\&=576\; \sf ft^2\end{aligned}\)

Therefore, the area that is left for development in the field outside the playground is 576 ft².

Answer:

get an online calculator

Step-by-step explanation:

1 go to playstore

2 search algebra calculator

3 download calculator

4 open calculator

5 solve problem

Answer:

52%

Step-by-step explanation:

52 out of 100 is the same as .52, when you put that as a percentage, you get 52%

The correct answer is (D) -2x - 8.

To simplify the expression -1/3 ( 6x + 15 ) - 3, we can first apply the distributive property to the term in parentheses:

-1/3 ( 6x + 15 ) - 3 = -1/3 * 6x - 1/3 * 15 - 3

Then we can simplify using the properties of multiplication and division:

-1/3 * 6x - 1/3 * 15 - 3 = -2x - 5 - 3

Finally, we can combine like terms:

-2x - 5 - 3 = -2x - 8

The correct answer is therefore (D) -2x - 8.✅

Answer:

X=28.5

Step-by-step explanation:

Hope this helps!

Answer:

x=28.5

Step-by-step explanation:

x=1+12+23-7,5

x=13+23-7,5

x=36-7,5

x=28,5

:))

Answer: 35 oranges

Step-by-step explanation:

if one cup if 5 oranges then 5 oranges times 7 is 35

Quadratic equations are polynomial equations of degree 2. They can be written in the form ax² + bx + c = 0, where a, b, and c are constants. The graph of a quadratic equation is a parabola.

Transformations involve shifting or reflecting the graph of a quadratic equation. The most common transformations are shifting the graph left or right (by adding or subtracting a constant from x), shifting the graph up or down (by adding or subtracting a constant from y), and reflecting the graph across the x-axis or y-axis.

The axis of symmetry is a vertical line that divides the parabola into two symmetrical halves. The equation of the axis of symmetry for a quadratic equation of the form y = ax² + bx + c is x = -b/2a.

The vertex is the point on the parabola where it reaches its maximum or minimum value. The vertex of a quadratic equation of the form y = ax^2 + bx + c is (-b/2a, c - b²/4a).

The domain of a quadratic equation is the set of all real numbers for which the equation is defined. The range is the set of all possible y-values that the equation can take. You can find the domain and range of a quadratic equation by looking at its graph.

In recognizing quadratic equations, you can tell if an equation is quadratic by looking at the powers of the variables. A quadratic equation will always have a variable raised to the power of 2.

When substituting negative numbers into a quadratic equation, it can be helpful to use parentheses to avoid confusion. For example, to evaluate y = x² - 4x - 6 at x = -2, you would write y = (-2)² - 4(-2) - 6 = 16 + 8 - 6 = 18.

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Answer:-23

Step-by-step explanation:

Answer:

A,E,F

Step-by-step explanation:

The correct proportion to use to find the amount of orange juice, j, needed to add to 18 L of pineapple juice is:

2/8 = j/18

This proportion relates the ratio of orange juice to pineapple juice in the recipe (2:8) to the amount of orange juice needed to add to 18 L of pineapple juice. By cross-multiplying, we can solve for j as follows:

2/8 = j/18

218 = 8j

36 = 8*j

j = 36/8

j = 4.5

Therefore, you would need to add 4.5 L of orange juice to 18 L of pineapple juice to create the fruit juice recipe that calls for a ratio of 2 parts orange juice to 8 parts pineapple juice.

Answer:

Step-by-step explanation
2 over 8 equals j over 18

This proportion represents the ratio of orange juice to pineapple juice in the recipe. By setting up the proportion, we can solve for the value of 'j,' which represents the amount of orange juice needed.

So, the correct proportion is:

Answer:

n-6

Step-by-step explanation:

Answer:17

Step-by-step explanation:

1) 30 -13=17

n=17

Answer: The correct answer is A, look at the image for the explanation

Step-by-step explanation:

The equation can be used to find a(n) the nth term in the sequence is,

⇒ a (n) =  93.2 + 1.2n

An arithmetic sequence is the sequence of numbers where each consecutive numbers have same difference.

Given:

a₄ = 98

a₅ = 99.2

a₆ = 100.4

a₈ = 102.8

Now, Use the arithmetic sequence formula below:

a (n) = a₁ + (n - 1) d

Where,

an = nth term

a₁ = first term

n = number of terms

d = common difference

Let's solve for the common difference.

d = a₅ - a₄ = 99.2 - 98 = 1.2

Use the 8th term a8, to find the first term:

⇒ 102.8  = a₁ + (8 - 1) 1.2

⇒ a₁ = 94.4

Therefore, the first term a₁ is, 94.4

Thus, the equation for the nth term will be:

Input 94.4 for a1, 1.2 for d in the arithmetic formula above as;

⇒ a (n) = 94.4 + (n - 1) 1.2

⇒ a (n) =  93.2 + 1.2n

Thus, The equation can be used to find a(n) the nth term in the sequence is,

⇒ a (n) =  93.2 + 1.2n

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