What is this expression in simplified form?

4
⁢
14
−
11
⁢
14

A.

−
7
⁢
14
B.

7
⁢
14
C.

−
7
D. -49

The length of ZY to the nearest 10th is 69.5 units.

What is the triangle?

A triangle is a closed figure made of 3 line segments.

It has 3 sides, 3 vertices and 3 angles.

The sum of two sides is always Greater than the third side.

The sum of all angles is 180°.

We can start by finding the measure of angle YXZ:

m∠YXZ = 180° - m∠Y - m∠X = 180° - 90° - 58° = 32°

Now we can use the tangent ratio to find ZY:

tan(32°) = ZY / XW

ZY = XW * tan(32°) = 120 * tan(32°) ≈ 69.5

Hence, the length of ZY to the nearest 10th is 69.5 units.

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Answer:459.9

Step-by-step explanation:

Answer:

c 90 degrees

Step-by-step explanation:

i took the test

Answer:

Step-by-step explanation:

each dot in the following dot plot represents the number of players at one table in bev's bingo hall. a dot plot has a horizontal axis labeled number of players marked by 8 equidistant tick marks numbered from 0 to 7. dots are plotted above the following: 0, 1; 1, 2; 3, 3; 4, 1; 5, 1; 7, 1. a dot plot has a horizontal axis labeled number of players marked by 8 equidistant tick marks numbered from 0 to 7. dots are plotted above the following: 0, 1; 1, 2; 3, 3; 4, 1; 5, 1; 7, 1. find the interquartile range (iqr) of the data in the dot plot. players

The interquartile range (IQR) of the data in the dot plot is 3.5 players.

To find the interquartile range (IQR) of the data in the dot plot, we need to determine the values of the first quartile (Q1) and the third quartile (Q3).

The quartiles divide a dataset into four equal parts, where Q1 represents the 25th percentile and Q3 represents the 75th percentile.

Given the data points from the dot plot:

0, 1; 1, 2; 3, 3; 4, 1; 5, 1; 7, 1

First, arrange the data in ascending order:

0, 1, 1, 1, 3, 4, 5, 7

Next, find the median (Q2), which is the middle value of the data:

Median (Q2) = (3 + 4) / 2 = 3.5

Since there are 8 data points, we can calculate the position of Q1 and Q3 as follows:

Q1 position = (1/4) * (8 + 1) = 2.25

Q3 position = (3/4) * (8 + 1) = 6.75

Q1 is between the 2nd and 3rd data points: Q1 ≈ (1 + 1) / 2 = 1

Q3 is between the 6th and 7th data points: Q3 ≈ (4 + 5) / 2 = 4.5

Finally, calculate the IQR:

IQR = Q3 - Q1 = 4.5 - 1 = 3.5

So, the interquartile range (IQR) of the data in the dot plot is 3.5 players.

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The algebra math can be calculated in online by using online calculators, educational websites and mobile apps etc.

There are many online resources available that can help you calculate algebra math problems. Here are a few options:

Online calculators: You can use various online calculators to calculate algebra problems.

Educational websites: There are many educational websites that provide lessons and tutorials on algebra.

Mobile apps: There are many mobile apps available that can help you solve algebra problems on-the-go.

Online courses: There are many online courses available that can teach you algebra from the basics to the advanced level.

Whichever option you choose, it's important to make sure that you understand the steps involved in solving algebra problems so that you can apply the principles to new problems in the future.

Therefore, the different different methods to calculate algebra online has been explained

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An equation describing r as a function of A and π is r = √(A/π).

Mathematically, the area of a circle can be calculated by using this formula:

A = πr²

Where:

In this exercise, you are required to make "r" the subject of the formula in the given mathematical expression by using the following steps.

By dividing both sides of the mathematical expression by π, we have the following:

r² = A/π

By taking the square root, we have:

r = √(A/π)

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Complete Question:

Make r the subject: A = πr²

Answer:  430000

Step-by-step explanation: you have to do pemdas

Answer: 430,000. /four hundred thirty thousand

Step-by-step explanation:

The value of 4.3 x 10^5 is 430,000.

To understand this, the notation 4.3 x 10^5 represents a number in scientific notation, where 4.3 is the coefficient or significand, and 10^5 is the exponent. The exponent of 10 tells us how many places to move the decimal point to the right. In this case, the exponent 5 means we need to move the decimal point five places to the right.

Starting with 4.3, we move the decimal point five places to the right to get 430,000. So, 4.3 x 10^5 is equivalent to 430,000.

I can't see the questions, its very blurry. sorry

upload a better picture if you have

By doing some changes of units, we will see that Oliver has the tallest plant.

Here we need to do some changes of units, let's write all the units in centimeters.

First, we know that 1m = 100cm

Then:

0.38m = 0.38*100cm = 38cm

We also know that:

1 mm = 0.1cm

Then:

420mm = 420*(0.1)cm = 42cm

Then the 3 measures are:

Oliver: 45cm

Neil: 38cm

Elizabeth: 42cm

We can see that Oliver has the tallest tomato plant.

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The volume of the cylnder is  9,728.5 ft³

For a cylinder of radius R and height H, the volume is given by:

V = pi*R^2*H

Where pi = 3.14

Here we know that the height is.

H = (20 + 1/2) ft = 20.5 ft

And the diameter is (1 + 1/5) times the height, then:

D = (1 + 1/5)*(20 + 1/2) ft = (1.2)*(20.5)ft = 24.6ft

And the radius is half of that, so:

R = 12.3ft

Then the volume is:

V = 3.14*(12.3ft)^2*20.5ft = 9,728.5 ft³

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The angle of depression from point R to point S is ∠3.

The angle of elevation from point S to point R is ∠4.

∠2 is the angle of elevation from point R to Q

∠1 is the angle of depression from point Q to R.

What is an angle of elevation?

The angle of elevation is the angle created between the line of sight and the horizontal. The angle created is an angle of elevation if the line of sight is upward from the horizontal line.

From the the diagram it can be stated that:

The angle of depression from point R to point S is ∠3.

The angle of elevation from point S to point R is ∠4.

∠2 is the angle of elevation from point R to Q

∠1 is the angle of depression from point Q to R.

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A homogeneous system in parametric vector form:

(x1,x2,x3) = (s,s,-0.25s)

Parametric vector Form:

Any equation expressed as a parameter is a parametric equation. The general equation y = mx + b (where m and b are parameters) of a straight line in the form of a slope intersection is an example of a parametric equation. Example: one of the variables to t(x = t). Then we can rewrite this equation as y = t²+5.

So the set of parametric equations is x = t and y=t²+5.

According to the Question:

We are to solve them in parametric form.

X₁ + 2X₂ + 12X₃ = 0     ----------------------- (1)

2X₁ + X₂ + 12X₃ = 0     ----------------------- (2)

-X₁ + X₂ = 0                  ----------------------- (3)

From equation 3 we get

x₁ = x₂

Substitute in 1 and 2 to get

3x₁ + 12x₃ = 0 and

3x₁ + 12x₃ = 0

Thus, we find these two equations are dependent.  So we can have infinite solutions in parametric form only.

No unique solution is possible

Let x₁ = x₂ = s

Since 3x₁ +12x₃ = 0

x₁ = -4x₃

Or x₃ = -0.25s

So solution in parametric form is

(x1,x2,x3) = (s,s,-0.25s) for all real values.

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the answer is in this equation somewhere

The measures of the unknown angles are

x = 46

and

y = 88

From the question, we are to determine the measures of the unknown angles in the triangle.

From the diagram, we can observe that the triangle is an isosceles triangle as the legs of the triangle are congruent to each other.

Since the triangle is an isosceles triangle, the base angles of the triangle must be equal

The base angles are 46° and x°

Thus,

x = 46

Also,

We can write that

y° + 46° + x° = 180° (Sum of angles in a triangle)

y° + 46° + 46° = 180°

y° + 92° = 180°

y° = 180° - 92°

y° = 88°

Thus,

y = 88

Hence, x = 46 and y = 88

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The conversion of 2.5 inches to mm is 63.5 mm.

Millimeter (mm) and inch (in) are both units of length used to measure distance, length or height.

The millimeter is a metric unit of length, commonly used in most countries around the world. One millimeter is equal to one thousandth (1/1000) of a meter. Millimeters are often used in fields such as engineering, architecture, and manufacturing.

To convert 2.5 inches to millimeters (mm), you can use the conversion factor of 25.4 mm per inch.

So, the calculation is:

2.5 inches x 25.4 mm/inch = 63.5 mm

Therefore, 2.5 inches is equal to 63.5 mm.

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A nondirectional hypothesis using the t-score of -.493, degrees of freedom of 14, and a p-value of .629 could be:

"There is no significant difference between the two groups on the variable being measured."

This hypothesis is nondirectional because it does not specify which group would have a higher or lower score. The t-score and p-value indicate that the difference between the two groups is not statistically significant at the 95% confidence level.

"For the variable being measured, there is no significant difference between the two groups."

Because it does not state which group would have a greater or lower score, this hypothesis is nondirectional. The difference between the two groups is not statistically significant at the 95% confidence level, according to the t-score and p-value.

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Answer:1

Step-by-step explanation:

do you mean gcf? if so its 1.

Option C. Regression models can be used for both linear and non-linear associations, but they are particularly well-suited for linear relationships.

Regression models are useful for modeling the relationship between variables, particularly for predicting the value of one variable based on the value of another.

Linear regression models are used for linear associations, while non-linear regression models are used for non-linear associations. However, even for non-linear associations, linear regression models can be useful for approximating the relationship between variables in certain cases. Nonetheless, in general, non-linear regression models are more appropriate for non-linear associations.

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To convert cm to inches, divide your cm figure by 2.54 or multiply it by 0.3937. There are 2.54 cm in 1 inch.

So, 40 inches * 2.54 cm/inch = 101.6 cm

A centimeter (cm) is a decimal fraction of the meter, the System of UnInternational its (SI) unit of length, approximately equivalent to 39.37 inches.

To calculate a value in inches to the corresponding value in centimeters, just multiply the quantity in inches by 2.54 (the conversion factor).

Here is the formula:Value in centimeters = value in inches × 2.54There are 101.6 cm in 40 inches.This can be calculated by using the conversion factor of 1 inch equals 2.54 cm.

So, 40 inches can be converted to centimeters by multiplying 40 by 2.54:

40 inches * 2.54 cm/inch = 101.6 cm

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The solution set of the system of linear inequalities is the shaded region.

What is the system of linear inequalities?

A system of linear inequalities is a set of two or more linear inequalities that involve the same variables. Linear inequalities are mathematical statements that compare two expressions using the inequality symbols (<, >, ≤, or ≥) and indicate that one expression is less than or greater than another.

A system of linear inequalities can be represented graphically as a collection of shaded regions on a coordinate plane. The solution set of the system is the intersection of all shaded regions that satisfy all the inequalities in the system.

To find the solution set of the system of linear inequalities:

y < 3 + (1/2)x

y > 6 - (2/3)x

We can start by graphing each inequality on the same coordinate system. To do this, we can start by finding the x and y-intercepts of each inequality.

For the first inequality, y < 3 + (1/2)x, we can set x = 0 to find the y-intercept:

y < 3

So the y-intercept is at (0, 3).

Next, we can set y = 0 to find the x-intercept:

0 < 3 + (1/2)x

-3 < (1/2)x

-6 < x

So the x-intercept is at (-6, 0).

We can plot these points and draw a dashed line connecting them, since the inequality is strict (y < 3 + (1/2)x):

Attachment 1

For the second inequality, y > 6 - (2/3)x, we can set x = 0 to find the y-intercept:

y > 6

So the y-intercept is at (0, 6).

Next, we can set y = 0 to find the x-intercept:

0 > 6 - (2/3)x

6 > (2/3)x

9 > x

So the x-intercept is at (9, 0).

We can plot these points and draw a dashed line connecting them, since the inequality is strict (y > 6 - (2/3)x):

Attachment 2

Now, we need to determine which region of the graph satisfies both inequalities. We can do this by testing a point in each region. For example, we can test the point (0,0):

y < 3 + (1/2)x is true, since 0 < 3 + (1/2)(0)

y > 6 - (2/3)x is false, since 0 > 6 - (2/3)(0)

Therefore, the region below the first line but above the second line satisfies both inequalities. We can shade this region:

Attachment 3

So the solution set of the system of linear inequalities is the shaded region.

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The probability that at most 12 out of 20 randomly chosen people in NYC who have COVID have the XBB.1.5 variant is approximately 0.2277 and the probability that one must test 8 or more COVID patients in order to find exactly 5 that have the XBB.1.5 variant is approximately 0.9987.

(a) Let X be the number of people out of 20 who have the XBB.1.5 variant. X follows a binomial distribution with parameters n=20 and p=0.7. We need to find the probability that at most 12 out of 20 randomly chosen people in NYC who have COVID have this specific variant, which can be expressed as P(X ≤ 12).

Using a binomial distribution table or a calculator, we can calculate:

P(X ≤ 12) = ΣP(X=k), for k=0 to 12

P(X ≤ 12) =  0.2277

Therefore, the probability that at most 12 out of 20 randomly chosen people in NYC who have COVID have the XBB.1.5 variant is approximately 0.2277.

(b) Let Y be the number of patients tested until exactly 5 are found to have the XBB.1.5 variant. Y follows a negative binomial distribution with parameters r=5 and p=0.7. We need to find the probability that one must test 8 or more COVID patients in order to find exactly 5 that have the new variant, which can be expressed as P(Y ≥ 8).

Using the negative binomial distribution formula, we can calculate:

P(Y ≥ 8) = ΣP(Y=k), for k=8 to infinity

P(Y ≥ 8) = Σ [(k-1) choose (r-1)] p^r (1-p)^(k-r), for k=8 to infinity

This is a tedious calculation to do by hand, but we can use a calculator or software to find that P(Y ≥ 8) ≈ 0.99872

Therefore, the probability that one must test 8 or more COVID patients in order to find exactly 5 that have the XBB.1.5 variant is approximately 0.9987.

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The selling price of the motorcycle is Rs 1,19,400. To calculate this, we can use the formula Selling Price = Original Price - (Original Price × Loss Percentage).

In this case,

To calculate the selling price of an item when a loss percentage is given, we first need to calculate the amount of the loss. This can be done by multiplying the original price by the loss percentage. Then, we subtract the loss amount from the original price to get the selling price.

In this example, the original price of the motorcycle was Rs 135000, and the loss percentage was 12%. Multiplying 135000 by 0.12 gives us a loss amount of 16200, and subtracting this from 135000 gives us a selling price of 119400. This calculation can be used to quickly and accurately determine the selling price of an item when a loss percentage is given.

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Completing the square is a mathematical technique used to manipulate quadratic equations into a standard form that makes them easier to solve

The general form of a quadratic equation is:

ax^2 + bx + c = 0

To complete the square, you need to add and subtract (b/2a)^2 to the left side of the equation. This is because (b/2a)^2 is equal to (b/2a) times itself, which means it is a perfect square.

Here is the formula for completing the square:

ax^2 + bx + c = 0

ax^2 + bx = -c

a(x^2 + (b/a)x) = -c

a(x^2 + (b/a)x + (b/2a)^2 - (b/2a)^2) = -c

a(x + b/2a)^2 = -c + (b/2a)^2

The equation is now in the standard form:

a(x + b/2a)^2 = (4ac - b^2)/4a

By taking the square root of both sides, you can solve for x:

x = (-b +/- sqrt(b^2 - 4ac))/2a

This is the quadratic formula, which gives you the values of x that make the equation equal to zero.

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The only statement that is true about the translation is; ∠I ≅ ∠K.

Translation in transformation is defined as the displacement of a figure or a shape from one place to another. In translation, a figure can move upward, downward, right, left or anywhere in the coordinate system. In translation, only the position of the object changes, its size remains the same.

Now, from the given triangle, mapping ∠H onto ∠J means they are to be equal and by default it also means if that is the case, then we can equally say that ∠I ≅ ∠K.

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Square feet (ft²) to square meters (m²) conversion can be done by multiplying the number of square feet by 0.09290304.

This conversion factor is based on the fact that one square meter is equal to 10.7639 square feet. So, to convert a given area in square feet to square meters, you simply need to multiply that number by 0.09290304. Conversely, to convert from square meters to square feet, you would multiply the number of square meters by 10.7639. This conversion is commonly used in construction and real estate, as well as in international trade and commerce.

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Answer: the amount of polonium remaining in the sample 1104 days later is approximately 0.12 g, and the answer is C

Step-by-step explanation:

To determine how many half-lives of polonium-210 occur in 1104 days, we can divide 1104 by the half-life of 138 days:

1104 / 138 ≈ 8

Therefore, there are approximately 8 half-lives of polonium-210 in 1104 days.

To determine how much polonium is in the sample 1104 days later, we can use the fact that the amount of polonium remaining after n half-lives is given by:

Amount remaining = initial amount × (1/2)^n

where n is the number of half-lives that have occurred.

In this case, we know the initial amount is 30 g and the number of half-lives is 8. So we can calculate the amount of polonium remaining as:

Amount remaining = 30 g × (1/2)^8 ≈ 0.117 g ≈ 0.12 g (rounded to two decimal places)

Therefore, the amount of polonium remaining in the sample 1104 days later is approximately 0.12 g, and the answer is C.

To find the sale price of the magazine with a 20% off coupon, you can use the following expressions:

Below, you will learn how to solve the problem.

In this case, the cost of the magazine is $7.50, so the sale price would be:

The percentage represents a certain amount, expressed as a fraction of 100 equal parts.

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The dolphin traveled a total vertical distance of 17 feet during its jump. Note that the negative sign for the second and third parts of the jump indicates that the dolphin was descending during those parts.

Distance is the total amount of space traveled by an object or a person, regardless of the direction taken. It is a scalar quantity and is usually measured in units such as meters (m), kilometers (km), feet (ft), or miles (mi). Distance is different from displacement, which is the shortest distance between the starting and ending points in a particular direction.

The total vertical distance the dolphin traveled is the sum of the distances it traveled during each part of the jump:

Distance traveled during the first part of the jump (underwater to the surface): 27 feet - (-35 feet) = 62 feet

Distance traveled during the second part of the jump (out of the water to the surface): 0 feet - 27 feet = -27 feet

Distance traveled during the third part of the jump (surface to underwater): -18 feet - 0 feet = -18 feet

Total vertical distance traveled: 62 feet + (-27 feet) + (-18 feet) = 17 feet

Therefore, the dolphin traveled a total vertical distance of 17 feet during its jump. Note that the negative sign for the second and third parts of the jump indicates that the dolphin was descending during those parts.

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iv or IV is actually a roman numeral. By the mathematics roman numeral system we can figure out that IV is 4 in normal number system.

Roman numerals are a system of numbers that were first utilized in ancient Rome and were widely used throughout Europe well into the Late Middle Ages. Numbers are represented by Latin letter combinations with fixed integer values.

Roman numerals continued to be used for a very long time after the fall of the Roman Empire. Beginning in the 14th century, Roman numerals began to be gradually replaced by Arabic numerals, but some applications continue to use Roman numerals today.

In ancient Rome, usage was extremely diverse, and in medieval Europe, it was completely disorganized. Variant forms are even defended by some contemporary writers as providing improved "flexibility," despite the post-renaissance restoration of a largely "classical" notation failing to produce total consistency.

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Therefore, the appropriate percent in the pie chart to represent the preference for Klean laundry detergent is 15%.

Percent is a way of expressing a fraction or a ratio as a portion of 100. The word "percent" means "per hundred." It is denoted by the symbol "%". Percentages are commonly used to express rates, proportions, or parts of a whole in various fields, such as mathematics, science, finance, and statistics. For example, an interest rate of 5% per annum means that for every 100 units of money, the lender will receive 5 units of interest each year.

Here,

To find the appropriate percent in the pie chart to represent the preference for Klean laundry detergent, we need to calculate the fraction of people who prefer Klean detergent, and then convert it to a percentage.

The fraction of people who prefer Klean detergent is:

75/500 = 0.15

To convert this fraction to a percentage, we can multiply by 100:

0.15 x 100 = 15%

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