this and the notation , help!:__)

Answer:

Your answer should be x = \(\frac{48}{7}\).

Hope this helps.

Answer:

x is about 6.857 or 48/7

Step-by-step explanation:

to do this we cross multiply

42/18=16/x

42x=18(16)

42x=288

x=6.857

Hopes this helps please mark brainliest

Answer: A

Step-by-step explanation: 10x10=100

Answer:

b. $9.96

Step-by-step explanation:

To solve this problem, let's first calculate how much Nina charges for shipping per painting. We'll divide the total shipping cost by the number of paintings sold.

When Nina sells 4 paintings and charges a total of $9.96 for shipping:

Shipping cost per painting = $9.96 / 4 = $2.49

When Nina sells 8 paintings and charges a total of $19.92 for shipping:

Shipping cost per painting = $19.92 / 8 = $2.49

We can see that regardless of the number of paintings sold, Nina charges $2.49 for shipping per painting.

Now let's calculate how much Nina charges for shipping 20 paintings and 16 paintings:

Shipping cost for 20 paintings = $2.49 * 20 = $49.80

Shipping cost for 16 paintings = $2.49 * 16 = $39.84

The difference in shipping charges for 20 paintings and 16 paintings is:

$49.80 - $39.84 = $9.96

Therefore, Nina charges $9.96 more for shipping 20 paintings than for shipping 16 paintings. The correct option is (b) $9.96.

Answer: XYW = 32, WYZ = 85

Step-by-step explanation:

We are looking for what x is, which we can find with the formula:

117 = (6x+44) + (-10x+65)

117 = -4x + 109

8 = -4x

x = -2

We can verify this is correct by plugging it in and seeing if they add up to 117.

6x + 44 (XYW)

= 6(-2) + 44

= -12 + 44

= 32

-10x + 65 (WYZ)

= -10(-2) + 65

= 20 + 65

= 85

32 + 85 = 117

To determine if a matrix is a linear combination of other matrices, we need to check if it can be written as a weighted sum of those matrices where the weights are scalar values (numbers).

If a matrix can be expressed in this way, it is said to be a linear combination of the other matrices.

For example if we have matrices: A, B & C and we can write matrix D as follows:

Then D is a linear combination of matrices A, B and C. This concept is important in linear algebra as it allows us to express one matrix in terms of others. Making it easier to manipulate & analyze the matrices. A matrix is a linear combination of other matrices if it can be expressed as a weighted sum of those matrices where the weights are scalar values.

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To find the expected value of the sum of the numbers on the two selected pieces of paper, we need to calculate the probability of each possible outcome and then multiply that probability by the value of the outcome. The expected  value of the sum of the numbers on the two selected pieces of paper is 6.1625.

Therefore the answer is 6.1625.

The possible outcomes for the first bag are 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, each with a probability of 1/10.

The possible outcomes for the second bag are 20, 21, 22, 23, 24, 25, 26, 27, each with a probability of 1/8.

The possible outcomes for the sum of the numbers on the two selected pieces of paper are:

(1,20) ,(1,21) ,(1,22) ,(1,23) ,(1,24) ,(1,25) ,(1,26) ,(1,27)

(2,20) ,(2,21) ,(2,22) ,(2,23) ,(2,24) ,(2,25) ,(2,26) ,(2,27)

(3,20) ,(3,21) ,(3,22) ,(3,23) ,(3,24) ,(3,25) ,(3,26) ,(3,27)

...

(10,20) ,(10,21) ,(10,22) ,(10,23) ,(10,24) ,(10,25) ,(10,26) ,(10,27)

The expected value of the sum of the numbers on the two selected pieces of paper is the sum of the products of each possible outcome and its corresponding probability.

The probability of each outcome is (1/10) * (1/8) = 1/80

So the expected value of the sum of the numbers on the two selected pieces of paper is

(1 + 21)×(1/80) + (1 + 22)×(1/80) + (1 + 23)×(1/80) + (1 + 24)×(1/80) + .... + (10 + 27)×(1/80) = (21 + 22 + 23 + 24 + ... + 37)/80

= (20×17 + 1 + 2 + ... + 17)/80

= (340 + 17×(17 + 1)/ 2)/ 80

= (340 + 17×9)/ 80

= 6.1625

So the expected value of the sum of the numbers on the two selected pieces of paper is 6.1625

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Answer:

3

Step-by-step explanation:

3/4 ÷ 1/4 = ?

Dividing two fractions is the same as multiplying the first fraction by the reciprocal (inverse) of the second fraction.

Take the reciprocal of the second fraction by flipping the numerator and denominator and changing the operation to multiplication. Then the equation becomes

3/4 × 4/1

For fraction multiplication, multiply the numerators and then multiply the denominators to get

3 × 4 / 4 × 1 = 12/4

Since 12 divided by 4 equals 3 then,

12/4 = 3

Therefore 3/4 ÷ 1/4 = 3

On a distance-time graph, a constant slope indicates a constant speed or velocity. The slope of a line on a distance-time graph represents the rate of change of distance with respect to time.

If the slope remains constant, it means that the distance covered per unit of time is consistent throughout the entire duration represented by the graph.

When the slope is constant, it implies that the object or subject being represented is moving at a steady pace. This means that for each unit of time, an equal amount of distance is covered. For example, if the slope of the graph is 2, it indicates that for every unit of time (e.g., 1 second), the object or subject is covering 2 units of distance (e.g., 2 meters).

A constant slope can also suggest uniform motion, where the speed remains constant without any acceleration or deceleration. In this case, the object is moving at a steady rate, maintaining the same speed throughout the given time interval.

It's important to note that the slope's magnitude doesn't provide information about the actual speed; it only indicates that the speed remains constant. The actual speed can be determined by examining the scale and units on the graph.

In summary, a constant slope on a distance-time graph indicates that the object or subject is moving at a constant speed or velocity, covering the same amount of distance per unit of time, suggesting either uniform motion or a steady pace.

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The ratio of boy to girl who play kickball at race is 6 to 2. There are 18 girl on the team. the number of boys who play kickball at race is 12 boys.

The ratio of boy to girl who play kickball at race is 6 to 2

6 boys: 2 girls

Multiply the number of girls by the ratio:

18 girls x (6 boys / 2 girls) = 18 x 3 = 54

Subtract the number of girls from the total to get the number of boys:

54 - 18 = 36

Therefore, there are 12 boys who play kickball at race.

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Answer:

three

Step-by-step explanation:

Answer:

B = 3

Hope this helps :)

The number of square inches which make up half of the cookie cake is approximately 100.48 inches².

Given that,

The diameter of a circular cookie cake is 16 inches.

Cookie cake is circular.

We have to find the area of the half of the cookie cake.

Diameter = 16 inches

Radius = 16/2 = 8 inches

Area of a circular figure = πr²

Total area of the cookie cake = π(8)² = 64π

Area of half the cake = 64π /2 = 32π = 100.48 square inches

Hence the area of half of the cookie cake is 100.48 inches².

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Answer:

A, D, and E

Step-by-step explanation:

Answer:

A,D,E

Step-by-step explanation:

The absolute value is how far a number is from 0. For example, -3 is 3 places from zero so the absolute value would be 3. Another example would be the absolute value of 5 which would be 5 because it is 5 places from 0.

We know that Sarah will use (C) 3/8 cups of grape juice in each cup of water using simple mathematical operations.

A mathematical action is called an operation.

Mathematical operations include addition, subtraction, multiplication, division, and finding the root.

Most people agree that addition, subtraction, multiplication, and division are the four fundamental mathematical operations.

So, we know that:

Sarah uses 1/4 cup of grape juice for every 2/3 cup of water.

Sarah uses a certain amount of grape juice for every cup of water:

1/4 ÷ 2/3

1/4 * 3/2

3/8

Therefore, we know that Sarah will use (C) 3/8 cups of grape juice in each cup of water using simple mathematical operations.

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Correct question:
Sarah dilutes grape juice for her two-year-old sister. She uses 1/4 cup of grape juice for every 2/3 cup of water.

How much grape juice does Sarah use for each cup of water?

a. 1/6 cup

b. 3/4 cup

c. 3/8 cup

d. 1 1/2 cup

Answer:

True

Step-by-step explanation:

28 - b < 34  Substitute in 11 for b

28 - 11 < 34

17 < 34  This is a true statement.

A measure of the dispersion of observations in a process distribution is called: range.

This is further explained below.

Generally, The range of a collection of data is the difference between the highest and smallest values in the set. This difference is calculated by subtracting the sample maximum and minimum from the sample size. It is written out using the same units that were used for the data.

In conclusion, The term "range" refers to a measure of the dispersion of observations included within a process distribution.

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Answer:

$175

Step-by-step explanation:

\(75 + 25(4) = 75 + 100 = 175\)

Henry could only see one line since both lines had the same slope, which means that the graphs of both equations will be identical and hence overlap.

Linear equations in a system 3x + 2y = 4, and 9x + 6y = 12

We must demonstrate why Henry could only make out one line when he plotted the equations 3x-2y=4 and 9x-6y=12 on a graph.

Take the provided linear equation system into consideration.

3x - 2y = 4 ................(1)

9x - 6y = 12 ..................(2)

Due to the fact that equation (2) is a multiple of equation (1), 3 (3x - 2y = 4) = 9x - 6y = 12

The slopes of the provided equations are also same.

Difference with regard to x for equation (1) yields,

additional to equation (2),

With regard to x, we can differentiate to get,

The graphs of both equations will overlap since both lines have the same slope and hence have the same appearance on the graph.

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An expression which shows the order the numbers would appear on a number line from least to greatest is: A. 17 over 9, square root of 6, square root of 15, square root of 30, 3 to the power of 3.

A number line can be defined as a type of graph with a graduated straight line which is composed of both positive and negative numbers that are placed at equal intervals along its length.

In Mathematics, a number line typically increases in numerical value towards the right from zero (0) and decreases in numerical value towards the left from zero (0).

In order to arrange the given numbers in order from least to greatest, we would convert them into a decimal number as follows:

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For the two electronic components with exponential distribution ,

P(ð > ð¡) = \(e^{(-\delta_{i} /5)- (-\delta_{i} /4) }\).

Name of  ð is exponential distribution and its parameters is ð ~ Exp(1/5 + 1/4).

Its numerical value of ð¸(ð) is 2.22 years

For a device with two electronic components T1 and T2.

T1 and T2 are independent of each other.

To find P(ð > ð¡),

Consider that ð (the minimum of the two lifetimes) is greater than ð¡.

This implies that both T1 and T2 must be greater than ð¡.

Since T1 and T2 are independent exponential distributions with means 5 years and 4 years respectively,

The probability of each of them being greater than ð¡ is given by the exponential survival function,

P(T1 > ð¡) = \(e^{(-\delta_{i} /5)}\)

P(T2 > ð¡) = \(e^{(-\delta_{i} /4)}\)

Since T1 and T2 are independent, the probability that both T1 and T2 are greater than ð¡ is the product of their individual probabilities:

P(ð > ð¡)

= P(T1 > ð¡) × P(T2 > ð¡)

= \(e^{(-\delta_{i} /5)}\) × \(e^{(-\delta_{i} /4)}\)= \(e^{(-\delta_{i} /5)- (-\delta_{i} /4) }\)

From the above result,

we can see that the distribution of ð the minimum of the two lifetimes follows the exponential distribution.

The parameter of the exponential distribution is the sum of the individual mean parameters,

ð ~ Exp(1/5 + 1/4)

To find the numerical value of ð¸(ð), we need to calculate the expected value of ð.

For the exponential distribution,

The expected value (mean) is given by the reciprocal of the rate parameter.

Here, the rate parameter is the sum of the individual mean parameters,

ð¸(ð) = 1 / (1/5 + 1/4)

Calculating the value,

ð¸(ð)

= 1 / (0.2 + 0.25)

= 1 / 0.45

≈ 2.22 years

The numerical value of ð¸(ð) is approximately 2.22 years.

Therefore, for the exponential distribution ,

P(ð > ð¡) = \(e^{(-\delta_{i} /5)- (-\delta_{i} /4) }\).

Distribution name of  ð is exponential distribution and its parameters is the sum of the individual mean parameters ð ~ Exp(1/5 + 1/4).

Numerical value of ð¸(ð) is 2.22 years.

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The time that the object hits the ground is given as follows:

B. t=5.

The equation giving the height of the object after t seconds is given as follows:

h(t) = -16t² + 80t.

The object hits the ground when:

h(t) = 0.

Hence the time is obtained as follows:

-16t² + 80t = 0

16t² - 80t = 0

16t(t - 5) = 0.

Hence the non-zero time is given as follows:

t - 5 = 0

t = 5 seconds.

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Answer:

Rational

Step-by-step explanation:

Rational numbers can be reduced to a fraction

Irrational numbers cannot be reduced to a fraction

Whole numbers are positive numbers that are not decimal or fraction

Integers are all numbers that are not decimal or fraction

So, the area of the shape is 164.4 square meters.

In geometry, area is the measure of the size of a two-dimensional surface or region. It is the amount of space inside the boundaries of a flat object such as a polygon, circle, or rectangle. Area is measured in square units, such as square meters (m²), square centimeters (cm²), square feet (ft²), square inches (in²), and so on. To calculate the area of a shape, you typically need to use a specific formula depending on the type of shape, such as base times height for a triangle, or length times width for a rectangle.

Here,

The area of the shape is equal to the sum of the areas of these smaller pieces. We can calculate each area as follows:

The area of the rectangle on the left is 4m x 8.4m = 33.6 square meters.

The area of the rectangle on the right is 8m x 11.4m = 91.2 square meters.

The area of the triangle on the top is (8.4m x 4m) / 2 = 16.8 square meters.

The area of the triangle on the bottom is (11.4m x 4m) / 2 = 22.8 square meters.

Therefore, the total area of the shape is:

33.6 + 91.2 + 16.8 + 22.8 = 164.4 square meters

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Answer:

1/12

Step-by-step explanation:

1/2 × 1/3 × 1/2

= 1/12

Answer:

the answer is C

Step-by-step explanation:

just divide 42.75 by 9

Answer:

This equation represents Plan 1, since it shows that the cost to join the plan is $30 and the cost for each bowling visit is $3.

Step-by-step explanation:

Answer: 3x + 30

Step-by-step explanation: the $3 fee depends on how many times joey goes bowling so it will be 3x + the flat $30 per month

Answer:

(-4, -17), (-3, -10), (-2,5), (-1,2)

All the coordinates are represent linear function.

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The coordinates are,

⇒ (-4, -12), (-3,-10), (-2, -8), (-1,-6)

⇒ (-4, -17), (-3, -10), (-2,5), (-1,2)

⇒ (1, -7), (2, -10), (3, -13), (4, -16)

⇒ (1, 1), (2, 4), (3, 7), (4, 10)

Now,

We know that;

A relation between a set of inputs having exactly one output each is called a linear function.

Clearly, All the coordinate have exactly one output for every input.

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Answer:

I love algebra anyways

The ans is in the picture with the  steps how i got it

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation: