help my math math math​

Answer:

-4

Step-by-step explanation:

(4-2)³ = 8

so 8 - 3 x 4

is equal to -4

The expression  \(((4 - 2)^3 - 3) \times 4\) simplifies to 20, as of the given operations.

To calculate the expression  \(((4 - 2)^3 - 3) \times 4\), we follow the order of operations (PEMDAS/BODMAS).

First, we evaluate the parentheses: (4 - 2) = 2.

Next, we calculate the cube of 2³= 8.

Then, we subtract 3 from 8:
8 - 3 = 5.

Finally, we multiply the result by 4:
5 × 4 = 20.

Therefore, the value of the expression \(((4 - 2)^3 - 3) \times 4\) is 20.

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If Miguel has saved $1,496 so far, and the cost of the car is $3,400, then Miguel has saved 44% of the total cost of the used car.

To find the percent Miguel has saved towards the used car, you can use the following equation:
Percent saved = (Amount saved / Total cost) × 100

Here, the total cost of the car is $3,400 and Miguel has saved $1,496 so far. Plug these values into the equation:

Percent saved = ($1,496 / $3,400) × 100
Now, divide $1,496 by $3,400:
Percent saved = (0.44) × 100
Finally, multiply the result by 100 to get the percentage:
Percent saved = 44%

So, Miguel has saved 44% of the total cost of the used car.

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The minimum yield value of the key material should be determined based on the yield stress of the shaft, which is 36 kg/m², the dimensions of the key, and the safety factor of 2.

To ensure that the key smoothly transmits the torque of the shaft, it is essential to choose a key material with a minimum yield value that can withstand the applied forces without exceeding the yield stress of the shaft.

The dimensions of the key given are 20x20x120 mm. To calculate the torque transmitted by the key, we need to consider the dimensions and the applied forces. However, the specific values for the applied forces are not provided in the question.

The safety factor of 2 indicates that the material should have a yield strength at least twice the expected yield stress on the key. This ensures a sufficient margin of safety to account for potential variations in the applied forces and other factors.

To determine the minimum yield value of the key material, we would need additional information such as the expected torque or the applied forces. With that information, we could calculate the maximum stress on the key and compare it to the yield stress of the shaft, considering the safety factor.

Please note that without the specific values for the applied forces or torque, we cannot provide a precise answer regarding the minimum yield value of the key material.

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Answer:

See below

Step-by-step explanation:

Circumference = pi * d =  18 pi inches

Area = pi r^2     = pi * 9^2 = 81 pi  in^2

Answer:

y = -1/2x + 8

Step-by-step explanation:

y = -1/2x + b

6 = -1/2(4) + b

6 = -2 + b

8 = b

Answer:

2309

Step-by-step explanation:

V = pi times radius^2 times height

Answer: 2309

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The expression that represent the perimeter of the rectangle is  20v  - 6w

The perimeter of a rectangle is the sum of the whole side of the rectangle.

Therefore,

perimeter of a rectangle = 2l + 2w

where

Hence,

l = 6v - 6w

w = 4v + 3w

perimeter of a rectangle =  2(6v - 6w) + 2(4v + 3w)

perimeter of a rectangle = 12v - 12w + 8v + 6w

combine like terms

perimeter of a rectangle = 12v + 8v - 12w + 6w

perimeter of a rectangle = 20v  - 6w

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Answer:

0.63 I beleive

Step-by-step explanation:

So when you use your calculator you want to divide 6.30 divided by 10, because there are 10 razors and it is $6.30, so if you wanna know what 1 razor costs, you gotta divide how much money the razors are, and the amount of razors if that makes sense.

Brad would need 40 Columns to complete a 5-row garden.The correct answer is B. 40.

To determine the number of columns that would complete a 5-row garden, we can use the concept of the grid-like pattern that Brad is using to plant his flowers.

We are given two possibilities: 8 rows and 25 columns or 10 rows and 20 columns. These two possibilities indicate that the number of flowers can be arranged in a rectangular grid.

Let's analyze the information we have:

For the first possibility: 8 rows and 25 columns, we can calculate the total number of flowers by multiplying the number of rows by the number of columns: 8 * 25 = 200 flowers.

For the second possibility: 10 rows and 20 columns, the total number of flowers is calculated as 10 * 20 = 200 flowers.

We can observe that both possibilities have the same total number of flowers, which is 200.

Now, Brad wants to have a 5-row garden. To determine the number of columns that would complete a 5-row garden, we divide the total number of flowers by the number of rows.

Total number of flowers = 200

Number of rows = 5

Number of columns = Total number of flowers / Number of rows = 200 / 5 = 40

Therefore, Brad would need 40 columns to complete a 5-row garden.

The correct answer is B. 40.

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Based on the first entry level web developer salary paid, and the new work year, the amount the web developer can expect his annual pay to decrease by is $2,190

First, find the weekly pay of the web developer in the first salary:

= 56,940 / 52

= $1,095 per week

The new salary of the web developer as a result of the work week becoming 50 weeks is:
= 1,095 x 50

= $54,750

The decrease in this annual pay to the web developer is:

= 56,940 - 54,750

= $2,190

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Answer:  \(\frac{28}{27}\) or \(1\frac{1}{27}\)

Step-by-step explanation:

\(\frac{7}{9} /\frac{6}{8} = \frac{7}{9}(\frac{8}{6})\)

\(\frac{7}{9} (\frac{8}{6} ) = \frac{28}{27}\)

\(\frac{28}{27} = 1 \frac{1}{27}\)

For the given right triangle, L = 66°, LK = 3.56, and the hypotenuse, LM = 8.75.

A right triangle, right-angled triangle, or more formally an orthogonal triangle—previously known as a rectangled triangle—is a triangle with one angle that is a right angle (i.e., a 90-degree angle), meaning that two of its sides are perpendicular. The foundation of trigonometry is the relationship between the sides and other angles of a right triangle.

The hypotenuse is the side that faces the right angle (side c in the figure). Legs are the sides that are next to the right angle (or catheti, singular: cathetus). Side a can be thought of as the side that is adjacent to angle B and opposite to (or opposite) angle A, whereas side b is the side that is adjacent to angle A and opposite to angle B.

Given a right triangle with base = 8 and an angle = 24°

Using angle sum property of triangle

24 + 90 + angle L = 180

L = 66°

Using Sohcahtoa

Tangent: tan(θ) = Opposite / Adjacent

tan(24°) = LK/8

0.445 = LK/8

LH = 8 × 0.445

LK = 3.56

LM = \(\sqrt{MK^2 + LK^2}\)

LM = \(\sqrt{8^2 + 3.56^2}\)

LM = 8.75

Thus, For the given right triangle, L = 66°, LK = 3.56, and the hypotenuse, LM = 8.75.

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Shoe Town provides the finest ultimate price, so Raven should purchase the boots there.

possessing an identical or consistent ratio or connection between two quantities: If y/x = k, in which k is the proportionality constant, then the numbers y and x are proportionate.

To determine which one is the best store for Raven let's calculate the price in each case.

Shoe Town

Total price:

Initial price - Mark down  + Sales tax

85.95 - 15% + 7.16 %

85.95 - 12.89 + 7.16 %

73.06 + 7. 16%

73.06 + 5.23 = 78.29

Lace Up

Total price:

Initial price - Mark down - Coupon + Sales tax

85.95 - 10% - 5 + 7.15%

89.95 - 8.99 - 5 + 7.15%

80.96 - 5 + 7.15%

75.96 + 7.15%

75.96 + 5.43 = 81.39

Run, Don't Walk

Total price:

Initial price + shipping

71.99 + 6.50 = 78.45

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Answer:

Square Perimeter = 4(4x-1)

Rectangle Perimeter = 2(2x+1) + 2(x+2)

Square Perimeter = Rectangle Perimeter

4(4x-1) = 2(2x+1) + 2(x+2)  

16x - 4 = 4x + 2 + 2x + 4

16x - 4 = 6x + 6

-6x  +4  -6x  +4

10x = 10

x = 1

Step-by-step explanation:

hope that helped?

The number of strings where exactly two of the ones are next to each other, while the third one is not next to the other two, is (n-1) x (n-2).

In combinatorics, one of the fundamental concepts is counting the number of strings or sequences of symbols that satisfy certain conditions.

Let us first consider the case where the two ones that are next to each other are at the beginning of the string. In this case, we can place the third one in any of the remaining positions, which are n-2, where n is the total length of the string. Therefore, the number of such strings is (n-2).

Similarly, if the two ones are at the end of the string, we can place the third one in any of the n-2 remaining positions, and the number of such strings is again (n-2).

Now let us consider the case where the two ones are in the middle of the string. In this case, we can place the two adjacent ones in (n-2) ways, and the third one can be placed in any of the remaining n-3 positions, since it cannot be adjacent to the other two ones. Therefore, the number of such strings is (n-2) x (n-3).

To get the total number of strings that satisfy the given condition, we need to add up the number of strings in each of the three cases:

Total number of strings = (n-2) + (n-2) + (n-2) x (n-3)

Simplifying this expression, we get:

Total number of strings = (n-1) x (n-2)

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Answer:

Step-by-step explanation:

the last answer D

Answer:

20 boys, 10 girls

Step-by-step explanation:

4 + 2 = 6

4:6 ⋅ 5:5 = 20:30

2:6 ⋅ 5:5 = 10:30

Step-by-step explanation:

first you add 5 to both sides to give you

4x+7x=18

next you add 4 and 7 together

11x=18

after that you divide both by 11 to get

1.63 repeating

Answer:

x = 18/11 or 1 and 7/11

Step-by-step explanation:

4x - 5 + 7x = 13

4x + 7x = 13 + 5

11x = 18

x = 18/11 or 1 and 7/11

Two integer variables x and y, prompts the user to enter values for them using the Scanner class, and performs addition, subtraction, multiplication, and division operations on those variables:

import java.util.Scanner;

public class VariableOperations {

   public static void main(String[] args) {

       Scanner scanner = new Scanner(System.in);

       System.out.print("Enter the value for x: ");

       int x = scanner.nextInt();

      System.out.print("Enter the value for y: ");

       int y = scanner.nextInt();

       // Addition

       int addition = x + y;

       System.out.println("Addition: " + addition);

       // Subtraction

       int subtraction = x - y;

       System.out.println("Subtraction: " + subtraction);

       // Multiplication

       int multiplication = x * y;

       System.out.println("Multiplication: " + multiplication);

       // Division

       if (y != 0) {

           double division = (double) x / y;

           System.out.println("Division: " + division);

       } else {

           System.out.println("Cannot divide by zero.");

       }

   }

}

This code prompts the user to enter values for x and y, performs the four basic arithmetic operations, and displays the results on the screen.

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It takes approximately 3 hours for an average adult to metabolize four 12-ounce beers.

The alcohol has a half-life of about 3 hours. This means that for every three hours that pass, the amount of alcohol in your body decreases by half. Alcohol is metabolized primarily in the liver.

Here, enzymes break down the ethanol molecule and turn it into a less toxic chemical called Acetaldehyde. Acetaldehyde is then further broken down by the enzyme aldehyde dehydrogenase into Acetic acid. Acetic acid is then further broken down into water and Carbon dioxide and eventually eliminated from the body.

So, for an average adult, it takes approximately 3 hours to metabolize four 12-ounce beers. The rate of metabolism can be affected by a number of factors such as age, gender, body composition, and the rate at which the alcohol was consumed.

Additionally, factors such as weight, body fat percentage, and the amount of food in the stomach can also influence the rate of alcohol metabolism. It is important to note that even after the alcohol is metabolized, it can still remain in the system and affect cognitive and motor skills.

Therefore, it is important to give the body enough time to metabolize the alcohol before attempting to drive or operate any type of machinery.

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Answer:

y = (x-3)² - 16

Step-by-step explanation:

(x-3)² = x²-6x +9

so to get to the original function you'll need to - 16

Answer:

1. 4, 28, 80

2. P(x)=4x

3. P(9.1)=36.4

The perimeter is 36.4 and the side length is 9.1

Step-by-step explanation:

To find perimeter you multiple a squares side length by 4.

Answer:

Its 0.00031

Step-by-step explanation:

You just move your decimal the number of exponent. In your case -4 so you would move it to the left because it's a negative and move it 4 spaces.

Hope this helps!

The outlier in the data set is 124.

What is the mean & median in statistics?

Mean: The average of a set of values, calculated by adding up all the values in the set and dividing by the total number of values.

Median: The middle value in a set of values, found by arranging the values in order and identifying the value that falls in the middle of the set.

To find the mean and median with and without the outlier, we can follow these steps:

Mean: Add up all the numbers in the data set.

Divide the sum by the total number of values in the set.

Without outlier:

(11 + 18 + 5 + 20 + 8 + 17) / 6 = 13.16

With outlier:

(11 + 18 + 5 + 20 + 8 + 124 + 17) / 7 = 31.29

Median: Sort the data set in order from smallest to largest.

If the number of values in the set is odd, the median is the middle value.

If the number of values in the set is even, the median is the average of the two middle values.

Without outlier:

5, 8, 11, 17, 18, 20

Median = (11 + 17) / 2 = 14

With outlier:

5, 8, 11, 17, 18, 20, 124

Median = 17

Therefore, the mean and median are affected by the outlier. The mean is higher with the outlier, while the median is not affected by the outlier.

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Answer:

Step-by-step explanation:

3²×3^4 = 3^6  ( when multiply add exponents)

correct answers:

first one 3^6

fourth one : 3^-4 * 3^10 = 3^6 (-4+10=6)

sixth one : 3³*3³ = 3^6

last one : (3*3)(2*3*3*3)= 3²*3^4 = 3^6

So , correct option is A

I hope you can see the above image.

The statistical technique used to estimate future values by successive observations of a variable at regular intervals of time that suggest patterns is called trend analysis.

Trend analysis is a statistical technique that helps identify patterns and tendencies in a variable over time. It involves analyzing historical data collected at regular intervals to identify a consistent upward or downward movement in the variable.

By examining the sequential observations of the variable, trend analysis aims to identify the underlying trend or direction in which the variable is moving. This technique is particularly useful when there is a time-dependent relationship in the data, and past observations can provide insights into future values.

Trend analysis typically involves plotting the data points on a time series chart and visually inspecting the pattern. It helps in identifying trends such as upward or downward trends, seasonality, or cyclic patterns. Additionally, mathematical models and statistical methods can be applied to quantify and forecast the future values based on the observed trend.

This statistical technique is widely used in various fields, including finance, economics, marketing, and environmental sciences. It assists in making informed decisions and predictions by understanding the historical behavior of a variable and extrapolating it into the future.

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Answer:

1,536π

Step-by-step explanation:

Volume = πr²·h

= 64(24)π

= 1536π

The slope of the line passing through the points (5, -2) and (7, 6) is 4.

The slope of a line is a measure of its steepness and is defined as the change in the y-coordinate divided by the change in the x-coordinate between two points on the line.

The slope formula expresses this relationship in algebraic terms.

In the given problem, we are asked to find the slope of the line passing through the points (5, -2) and (7, 6).

To use the slope formula, we need to identify the coordinates of the two points and plug them into the formula.

Using the coordinates of the given points, we can label them as follows:

(x1, y1) = (5, -2) and (x2, y2) = (7, 6).

Then, we can plug these values into the slope formula:

m = (y2 - y1)/(x2 - x1)

m = (6 - (-2))/(7 - 5)

m = \(\frac{8}{2}\)

m = 4

Therefore,

The line passing through the slope points (5, -2) and (7, 6) is 4. We can interpret this as meaning that for every unit of change in the x-coordinate, the y-coordinate increases by 4 units.

If the slope were negative, we would know that the line is decreasing as we move from left to right, and if the slope were zero, we would know that the line is horizontal.

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