paying 50 usd to anyone who helps​

Answer:

I'm not 100% sure but isn't a reflex angle the difference between the angle and 360°?

Then 360° - 120° = 240°

240° x 6 = 1440°

Step-by-step explanation:

It is true that the variance is the simplest measure of dispersion and is computed as the difference between the maximum value and the minimum value in the data set.

Variance is a measure of dispersion that, in contrast to range and interquartile range, accounts for the spread of all data points in a data collection. Along with the standard deviation, which is just the square root of the variance, it is the measure of dispersion that is most frequently employed. The statistical assessment of the variation in numbers within a data collection is known as variance. In more detail, variance assesses how far apart each number in the collection is from the mean (average) and, consequently, from each other.

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Answer:

$1.27

$9030.56

$2,210.34

Step-by-step explanation:

The formula for calculating future value:

FV = P (1 + r/n)^nm

FV = Future value  

P = Present value  

R = interest rate  

m = number of compounding

N = number of years  

1. 1( 1 + 0.24 /12)^12 = $1.27

2. 5000 ( 1 + 0.12 /4)^( 5 x 4) = $9030.56

the formula for calculating future value when there is continuous compounding is : A x e^r x N

A= amount e = 2.7182818 N = number of years r = interest rate

3. 1000 x e^0.1 x 2 = $2,210.34

Answer:

y=2/3x+5

Step-by-step explanation:

follow the values of x and y

Answer: rhombus and parralelogram

Step-by-step explanation:

Answer:

rhombus and parralelogram

Step-by-step explanation:

To prove that for any two vectors a and b, |a × b| = |(a·a)(b·b) – (a·b)², we need to use the properties of cross products and dot products.

We start by computing the left-hand side: |a × b| = ||a|| ||b|| sin θ, where θ is the angle between a and b. But we can express the magnitude of the cross product in terms of dot products using the identity:\(|a × b|² = (a · a)(b · b) – (a · b)².So,|a × b| = sqrt[(a · a)(b · b) – (a · b)²]\)

Next, we use the distributive property of dot products and write:\((a · a)(b · b) – (a · b)^2 = (a · a)(b · b) – 2(a · b)(a · b) + (a · b)² = (a · a)(b · b) – (a · b)^2\)We can then substitute this expression into the previous equation to get:|a × b| = sqrt[(a · a)(b · b) – (a · b)²], \(|a × b| = sqrt[(a · a)(b · b) – (a · b)²]\)which is the right-hand side of the equation. Therefore, we have proven that |a × b| = |(a·a)(b·b) – (a·b)², for any two vectors a and b.

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Answer:

160

Step-by-step explanation:

Answer:

15

Step-by-step explanation:

Angle 2 is 2x+10

angle 4 is 4x+80

and from the figure we can understand that when we add these 2 equations

We get

6x+ 90= 180

6x = 180 - 90= 90

6x= 90

x = 90 ÷ 6 = 15

answer = 15

Answer:

√5

Step-by-step explanation:

I think that is the answer I never come to such a question of changing things to radical form but I guess 5 cannot be multiplied by a number such that it has a square root so the answer is that√5

The graph will consist of two diagonal lines: one representing Mary's initial walk, turnaround, and return to the classroom, and the other representing her run to lunch with a gradual decrease in speed as she approaches the cafeteria.

To sketch a distance vs. time graph based on the given description, we'll represent the time on the x-axis and the distance on the y-axis.

A. Mary left her classroom and walked at a steady pace to head to lunch:

In this portion, Mary is walking at a steady pace, indicating a constant speed. We can represent this as a straight, diagonal line on the graph, starting from the initial distance (0) and increasing gradually over time until she reaches halfway to the lunch area.

B. Halfway there, Mary stopped to look through her bag for her phone but couldn't find it:

At the halfway point, Mary stops to search her bag. Since she is stationary during this time, the graph will show a horizontal line at the same distance she reached before stopping. This horizontal line represents the time Mary spends searching her bag.

C. Mary turned around to quickly return to her classroom to get her phone that she left at her desk:

After realizing her phone is in the classroom, Mary turns around to go back. This is represented by a straight, diagonal line on the graph, but in the opposite direction. The distance decreases as she retraces her steps until she reaches the classroom.

D. Mary then ran all the way to lunch, gradually decreasing her speed as she neared the cafeteria:

Once Mary retrieves her phone, she runs all the way to lunch. Initially, the graph will show a steeper diagonal line, indicating an increase in distance covered over time. However, as she approaches the cafeteria, her speed gradually decreases. This is represented by a shallower diagonal line on the graph, showing a slower increase in distance over time.

Overall, the graph will consist of two diagonal lines: one representing Mary's initial walk, turnaround, and return to the classroom, and the other representing her run to lunch with a gradual decrease in speed as she approaches the cafeteria. The horizontal line in the middle represents the time Mary spends searching her bag.

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The total cost before the sales tax was 19.828 pounds.

For a party, Jordan purchased 3.8 pounds of turkey, 2.2 pounds of cheese, and 3.6 pounds of egg salad.

We have to determine the total cost before sales tax.

As per the question, we have prices as:

cost of turkey = 3.95 per pound

cost of egg cheese = 1.3 per pound

cost of egg salad = 0.89 per pound

The total cost of turkey = 3.8 × 3.95  = 15.01 pounds

The total cost of cheese = 2.2 × 1.3 = 2.86 pounds

The total cost of egg salad = 2.2 × 0.89 = 1.958 pounds

The total cost before sales tax = 15.01 + 1.958 +2.86

Apply the addition operation, and we get

The total cost before sales tax = 19.828 pounds

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The question seems to be incomplete the correct question would be:

Jordan bought 3.8 pounds of turkey, 2.2 pounds of cheese, and 3.6 pounds of egg salad for a party. If prices are 3.95 per pound turkey, 1.3 per pound cheese and 0.89 per pound egg salad What was the total cost before sales tax?

Answer:

24

Step-by-step explanation:

\( {ba}^{2} = {bc}^{2} - {ac}^{2} \\ {ba}^{2} = {10 }^{2} - {8}^{2} \\ ba = \sqrt{100 - 64} \\ ba = \sqrt{36 } \\ ba = 6\)

Area of triangle = 1/2 × AC × BA

= 1/2 × 8 × 6

= 48/2

= 24 in²

This is because the mean is at the very center of the normal distribution. The center is at 0, with positive values on the right and negative values on the left.

Something like z = 1 means we're 1 standard deviation above the mean. As another example, z = -3 means we're 3 standard deviations below the mean.

⎆ The value of the z-score will tell how many standard deviations the person is away from the mean.

➟ If a z-score is equal to 0, then it will be on the mean. So, z-score for the mean is 0.

\( \\ z = \frac{(x-μ)}{σ} \)

✐ Where,

As per transformation of graph, h(x) = 1/4x² - 11 represents that the graph of f(x) is horizontally compressed by a factor of 4 and shifted down by 11 units.

To know the effect on the graph

Given, the graph is f(x) = x².

We know that, at the time of horizontally compressing a graph we need to multiply it by a factor of (1/a).

Again, at the time of shifting a graph up we need to add a positive number of (b).

Therefore, a = 4 and b = - 11.

Now, if we horizontally compress f(x) it by a factor of (1/4) then it be (1/4)x².

Again,  if we shifted down f(x) by 11 units, then it be (1/4)x² - 11.

Therefore, h(x) = (1/4)x² - 11 represents that the graph of f(x) is horizontally compressed by a factor of 4 and shifted 11 units down.

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The domain and the range of the relation are given by the following option:

d. domain: {1, 2, 3}, range: {–1, 0, 1}.

The domain of a function is the set that contains all the input values, which are the values from which the arrow departs.

The range of a function is the set that contains all the output values, which are the values from which the arrow arrives.

Considering these definitions and the description of the set, the correct option is given by option d.

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Answer:

10

Step-by-step explanation:

The required equation is, y = 40 + 35 x, and the cost for 10 months will be 390.

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Total charges of gym = Initial service fee +  $ 35 per month

Thus, the total charges for 6 months = Initial service fee +  35 × 6 =  Initial service fee + 210

According to the question,

Initial service fee +  210 = 250

⇒ Initial service fee = 250 - 210 = $ 40

Hence, the total charges for the gym for x months = 40 + 35x. Here, y represents the total charges for x months,

⇒  y = 40 + 35 x

The total cost of the membership after 10 months will be calculated as:-

y = 40 + 35 x

y = 40 + 35 x 10

y = 390

Therefore, the required equation is, y = 40 + 35 x, and the cost for 10 months will be 390.

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Answer: 1.33 hr

Step-by-step explanation: 20t + 25t=60

45/45 = 60/45

t= 1.33hr

37.5% of the students collected between 49 and 98 kilograms of newspapers for the recycling project. Percentage method can be used here.

To answer this question, we need to determine the number of students who collected between 49 and 98 kilograms of newspapers and then calculate what percentage of the total number of students that represents.

First, we need to gather the data and sort it into categories. We can create a frequency table with intervals of 10 kilograms:
Mass Range | Number of Students
   0-9 kg               3
   10-19 kg            5
  20-29 kg           7
  30-39 kg           4
  40-49 kg           6
  50-59 kg           8
  60-69 kg           5
  70-79 kg           2
  80-89 kg           1
  90-99 kg           2

To find the number of students who collected between 49 and 98 kilograms of newspapers, we need to add up the frequencies for the 50-59, 60-69, and 70-79 kg categories. That gives us a total of 15 students.
To calculate the percentage of students who collected between 49 and 98 kilograms of newspapers, we need to divide the number of students in that range by the total number of students and then multiply by 100. In this case, we have 15 students in the range and a total of 40 students overall, so:
15/40 * 100 = 37.5%.

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d = rt

d/r  rt/r

d/r = t

Answer:

20.41

Step-by-step explanation:

I got the answer by doing 102.05 divided by 5 the took that number and multiplied it by 3 to get the answer 61.23

Answer:

w = \(\frac{p -2l}{2}\)

Step-by-step explanation:

p = 2l + 2w  Subtract 2l from both sides of the equation

p - 2l = 2p  Divide both sides by 2

\(\frac{p -2l}{2}\) = w

Step-by-step explanation:

Arc  PSR = 360° - 131° = 229°

Using outside angle theorem:

PQR =  (229 -131)° / 2 = 49°

Answer:

m1 = 125

m2 = 55

m3 = 125

m4 = 55

m5 = 125

m6= 55

m7 = 55

Step-by-step explanation:

well since m8 is 125 so m7 is 180-125 which is 55 and as u can see m7 and m8 ae equal to m1 and m2 which also means they are equal to m6 and m5 and m3 and m5 so the opposite angles are equal to each other>

3230 Kilograms of the soil supplement are required for the entire Vineyard.

Some units that need to be recalled are as follows:

1 km = 1000 m

1 km^2 = 1000000 m^2

1 km^2 = 247 acres

1 kg = 1000 g

Let's tackle the problem now:

A vineyard has 145 acres of Chardonnay grapes.

145 acres = \(\frac{145}{247}\)× 1 km^2

145 acres = 145/247 km^2

145 acres ~ 0.587 km^2

A particular soil supplement requires 5.50 grams for every square meter of vineyard

1m^2 → 5.50 gram

1 km^2 = 10^6 →5.50 x 10^6 gram

1 km^2 →5.50 x 10^6 x 10^-3 kg

1 km^2 →5.50 x 10^3 kg

145 acres = 145/247 km^2 →145/247 x 5.50 x 10^3 kg

145 acres → 797500/247 kg

145 acres → 3230 kg

It required 797500/247 kg ~ 3230 kg of the soil supplement for the entire Vineyard.

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Answer:

a

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

9514 1404 393

Answer:

  D.  -17%

Step-by-step explanation:

The change from March to April is (April - March) = (100 -120) = -20. As a fraction of the March bill, that is ...

  -20/120 = -1/6

As a percentage, that change is ...

  -1/6 × 100% ≈ -16.667% ≈ -17%

The electric bill changed by about -17% from March to April.

_____

Additional comment

Water went up 4%; groceries went up about 14%, and restaurant changed by -15%.

The percentage change is found by ...

  % change = ((new amount)/(original amount) -1) × 100%

Above, we have rearranged this to ...

  % change = ((new amount) -(original amount))/(original amount) × 100%

The vertex form of the quadratic expression x² - 20·x + 19 is (x - 10)² - 81

A quadratic equation is an equation of the form y = a·x² + b·x + c, where; a ≠ 0, and a, b, and c are coefficients.

The function in the question is; x² - 20·x + 19

The above function can be expressed in the vertex form by using the completing the square method as follows;

The vertex form of a quadratic equation is; a·(x - h)² + k

Where;

(h, k) is the coordinates of the vertex

a = The reflection or stretch of the function

x² - 20·x + 19

x² - 20·x = -19

x² - 20·x + (-20/2)² = -19 + (-20/2)²

x² - 20·x + (-10)² = -19 + (-10)² = 81

(x - 10)² = 81

(x - 10)² - 81 = 0

Therefore, the vertex is; (10, -81)

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