Find the value of the variable(s) please

Step-by-step explanation:

6 notebooks = $d

1 notebook = $?

So

1 notebook price = $d ÷ 6

Answer:

Step-by-step explanation:

n represents the number of notebooks

d represents the cost of a notebook

n = d            one notebook = d dollars

9n = 9d        multiply both sides by 9

about 2.1134 us quarts

The lengths of the missing sides are: y = 7.0 * sqrt(2) and x = 7.0 * sqrt(2)

Triangle can be defined in which it consists of three sides, three angles and sum of three angles is always 180 degrees.

According to the 45-45-90 triangle theorem, the two legs of a 45-45-90 triangle are congruent and the hypotenuse is the square root of 2 times the length of the legs. Therefore, if the side opposite the 45-degree angle is 7, then the other leg is also 7.

Let's label the hypotenuse as h. We know that h is the side opposite the right angle, so h = x. Using the Pythagorean theorem, we can find the length of x:

[tex]x^2 = 7^2 + 7^2x^2 = 98x = sqrt(98) = 7.0 * sqrt(2)[/tex]

So the length of the hypotenuse is 7.0 * sqrt(2).

Now let's find the length of the side opposite the other 45-degree angle, which we'll label as y. Since the two legs are congruent, y is also equal to 7.0 * sqrt(2).

Therefore, the lengths of the missing sides are: y = 7.0 * sqrt(2) and x = 7.0 * sqrt(2)

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A line's slope might be zero, positive, negative, or undefinable. The slope of a horizontal line is zero because it does not climb vertically (y1 y2 = 0), but the slope of a vertical line is unknown because it does not run horizontally (x1 x2 = 0).

The slope (m = 3.5 is positive) and y-intercept (b = 4) of the line y = 3.5x + 4 are both positive. This indicates that the y-intercept, or point (0, 4), is where the line crosses.

A line on a plane with no upward or downward slope is known as a line with zero slope in mathematics and computer science.

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The cost of fencing the field at ₹ 7.5 per meter is ₹810.

We already know that the area of a rectangle can be calculated using the formula = l*b

We have been told that the rate is ₹ 4 per sq. meter is ₹ 2340 and the breadth is 15 m.

Using these values, we can conclude that -

= l*b * 4 = 2340

= l = 2340 / 60

= l = 39 m

We also know that the perimeter of a rectangle can be calculated using -

= 2(l+b) and the rate of fencing this perimeter is  ₹ 7.5 per meter.

Using the values, we get -

= 2(39+15) * 7.5

= ₹ 810

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The restaurant sold 25 calzones and 21 slices. Our answer as an ordered pair is (25, 21).

To solve this problem, we can use a system of equations. Let x be the number of calzones sold and y be the number of slices sold. We can create two equations based on the information given:

1) x + y = 46 (the total number of calzones and slices sold)

2) 9x + 6y = 351 (the total money collected)

We can use the first equation to solve for one of the variables in terms of the other. For example, we can solve for y in terms of x:

y = 46 - x

Now we can substitute this expression for y into the second equation:

9x + 6(46 - x) = 351

Simplifying and solving for x:

9x + 276 - 6x = 351

3x = 75

x = 25

Now we can substitute this value of x back into the first equation to find y:

25 + y = 46

y = 21

So the restaurant sold 25 calzones and 21 slices. Our answer as an ordered pair is (25, 21).

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The missing values are 81/4 and 9/2, the complete square is x² - 9x + 81/4 = ( x - 9/2 )².

Given square in the question;

x² - 9x + [ ] = ( x - [ ] )²

To complete the square, we use the form ax² + bx + c.

Compare the form to the square;

Now, consider the vertex form of a parabola.

a( x + d )² + e

We find d, using the formula

d = b/2a

Plug in the values

d = -9/(2×1 )

d = -9/2

Next, find the value of e, using the formula

e = c - b²/4a

Plud in the values

e = 0 - (-9)²/(4×1)

e = -81/4

Hence, the complete square will be;

x² - 9x + 81/4 = ( x - 9/2 )²

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So the probability of getting four cards of the same rank and one other card is approximately 0.00096, or about 1 in 1,040.

Probability is a measure of the likelihood or chance of an event occurring. It is a numerical value between 0 and 1, where 0 indicates that the event is impossible and 1 indicates that the event is certain to occur. The probability of an event happening can be calculated by dividing the number of favorable outcomes by the total number of possible outcomes. For example, the probability of rolling a six on a fair six-sided die is 1/6, because there is only one favorable outcome (rolling a six) out of six possible outcomes (rolling a one, two, three, four, five, or six). Probability theory is widely used in mathematics, statistics, physics, engineering, economics, and many other fields to model and analyze uncertain situations and make predictions based on incomplete or imperfect information. It has many practical applications, such as in insurance, gambling, risk assessment, and scientific research.

Here,

To calculate the probability of getting four of a kind and one other card, we need to count the number of possible hands that satisfy this condition and divide it by the total number of possible hands.

First, we need to count the number of possible hands that contain four of a kind and one other card. There are 13 ranks in a deck of cards, and for each rank, there are 48 ways to choose four cards of that rank and 4 ways to choose one card of another rank (there are 4 cards of each rank in a deck). Therefore, the total number of hands that contain four of a kind and one other card is:

13 x 48 x 4 = 2,496

Next, we need to count the total number of possible hands of five cards that can be chosen from a deck of 52 cards without replacement. This is given by the formula:

52 choose 5 = 2,598,960

Therefore, the probability of getting four of a kind and one other card is:

2,496 / 2,598,960 = 0.00096 (rounded to 5 decimal places)

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Answer: x = -11

Step-by-step explanation:

[tex]\frac{-x+10}{3} = 7[/tex]

⇒-x+10 = 7x3
⇒-x+10 = 21
⇒-x = 21-10
⇒-x = 11
∴ x = -11

The measure of angle A to the neasrest degree is 46°.

Th figure in the image is a right triangle.

To solve for angle A, we use trigonometric ratio

Cosine = adjacent / hypotenuse

Plug in the values and solve for A.

cosA = 7.8/11.2

Take the cos inverse

A = cos⁻¹( 7.8/11.2 )

A = 46°

Therefore, angle A is 46 degrees.

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To solve this system of equations by elimination, we need to eliminate one of the variables (either x or y) by adding or subtracting the equations.

In this case, we can eliminate x by multiplying the first equation by 2 and subtracting it from the second equation:

2x - 6y = 12    (original second equation)

-2(x - 3y = 7)  (original first equation multiplied by -2)

-----------------

0x - 12y = -2

Now we have a new equation, 0x - 12y = -2, that relates only to y. Solving for y, we get:

0x - 12y = -2

-12y = -2

y = 1/6

Substituting this value of y back into either of the original equations, we can solve for x:

x - 3y = 7

x - 3(1/6) = 7

x - 1/2 = 7

x = 7 + 1/2

x = 15/2

Therefore, the solution to the system of equations is x = 15/2 and y = 1/6.

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Answer:      (-4,-8)

Step-by-step explanation:

185 centimeter is approximately equal to 6.0696 feet

To convert 185cm to feet, we can use the following formula:

1 cm = 0.0328 feet

The conversion is the process of changing the unit of one quantity to another units  

The conversion factor is defined as the number that is used to change one unit to another units by multiplying or dividing

Therefore,

The distance in feet = conversion factor × The distance in centimeter

Substitute the values in the equation

185 cm = 185 x 0.0328

Multiply the numbers

= 6.0696 feet ( rounded to four decimal places )

Therefore, 185cm is 6.0696 feet.

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Answer:

means

Step-by-step explanation:

The first term and the fourth term of a proportion are called extreme terms, and the second term and the third term are called means.

According to the conversion, 55 kg is equal to approximately 121.25 lbs.

In the world of mathematics, measurement plays a vital role in determining the quantity, weight, and size of any object. The standard units of measurement are different in various countries, and knowing how to convert from one unit to another is essential.

The question posed is, "What is 55 kg in lbs?" Here, 'kg' is a unit of mass, commonly used in the metric system, whereas 'lbs' stands for pounds, which is a unit of weight in the Imperial system. To convert from kg to lbs, we need to multiply the given value by a conversion factor.

1 kg is equal to 2.20462 pounds. Hence, we can use this conversion factor to convert 55 kg to lbs as follows:

55 kg x 2.20462 lbs/kg = 121.2542 lbs (rounded off to two decimal places)

In conclusion, understanding measurements and being able to convert from one unit to another is a fundamental aspect of mathematics. In this case, we used the conversion factor of 2.20462 lbs/kg to convert 55 kg to lbs.

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The probability of selecting three balls of the same color without replacement is 0.0545, and with replacement is 0.0393. The probability of selecting three balls of different colors without replacement is 0.4591, and with replacement is 0.4968.

(a) To select a set of 3 balls that are all of the same color, we need to choose one of the three colors (red, blue, or green), and then select 3 balls of that color from the urn. There are three ways to choose the color of the balls. For each color, the number of ways to select 3 balls of that color is given by the number of combinations of 3 balls from the set of balls of that color. Thus, the total number of ways to select a set of 3 balls that are all of the same color is:

Number of ways to select 3 red balls + number of ways to select 3 blue balls + number of ways to select 3 green balls

= (5 choose 3) + (6 choose 3) + (8 choose 3)

= 10 + 20 + 56

= 86

The total number of ways to select any set of 3 balls from the urn is given by the number of combinations of 3 balls from the set of 19 balls in the urn:

Total number of ways to select any set of 3 balls = (19 choose 3) = 969

Therefore, the probability that each of the balls will be of the same color is:

P(each ball of the same color) = (number of ways to select 3 balls of the same color) / (total number of ways to select any set of 3 balls)

= 86 / 969

= 0.089

So the probability that each of the balls will be of the same color is approximately 0.089 or 8.9%.

(b) To select a set of 3 balls that are of different colors, we need to choose one ball of each color from the urn. The number of ways to select one ball of each color is given by the product of the number of balls of each color:

Number of ways to select 1 ball of each color = 5 x 6 x 8 = 240

The total number of ways to select any set of 3 balls from the urn is still 969.

Therefore, the probability that each of the balls will be of different colors is:

P(each ball of different color) = (number of ways to select 1 ball of each color) / (total number of ways to select any set of 3 balls)

= 240 / 969

= 0.248

So the probability that each of the balls will be of different colors is approximately 0.248 or 24.8%.

When the balls are selected with replacement, the probabilities remain the same because the probabilities of selecting each ball are unchanged on each draw.

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I believe the answer is: 83 square inches.

"How so?"

First step:

11 x 5 + 7 x 4 = ?

Now, multiply.

11 x 5 = 55

Multiply once again.

7 x 4 = 28

Now add.

55 + 28 = 83.

I apologize if this is incorrect. I hope you have a lovely day! :)

Answer:

What is the area of this figure?

Step-by-step explanation:

You're welcome.

In the triangle QRS, the length of QS is 12 inches

Triangles are a fundamental shape in geometry, and understanding them is critical for many mathematical calculations.

In this case, triangle QRS and XYR are similar triangles, so we can use the ratio of XY to XR to calculate the length of QS.

Mathematically, this ratio can be expressed as:

=> XY / XR = QS / QY.

Thus, if we plug in the values of XY (8 inches) and XR (5 inches) into the equation, we get:

=> 8 / 5 = QS / 12.

We can then solve for QS by multiplying both sides of the equation by 12 and dividing by 8. This gives us the following result:

=> QS = (8 × 12) / 8 = 12 inches.

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1. The connection between exponential functions and geometric sequences is that the terms of a geometric sequence are generated by repeatedly multiplying the previous term by a constant ratio, which can be expressed using an exponential function.

2. Moore's Law is associated with the exponential function because it describes a growth pattern that is exponential in nature.

1. If  the first term of a geometric sequence is denoted by a_0 and the common ratio is denoted by r, then the nth term can be calculated using the formula a_n = a_0 * r^(n-1), which is equivalent to the exponential function f(n) = a_0 * r^n. Conversely, if we have an exponential function f(n) = a * r^n, then the sequence of its values for n = 1, 2, 3, ... forms a geometric sequence with first term a and common ratio r.

2. Moore's Law is a prediction made by Gordon Moore, co-founder of Intel, in 1965, that the number of transistors on a microchip would double every 18-24 months, while the cost per transistor would decrease. This has been interpreted to mean that the processing power of computers would double every 18-24 months, leading to exponential growth in computing power and an exponential decrease in the cost of computing.

Moore's Law is associated with the exponential function because it describes a growth pattern that is exponential in nature. The number of transistors on a microchip is growing at an exponential rate, which means that the rate of growth is proportional to the current number of transistors. This can be represented mathematically as an exponential function, such as y = a * e^(kx), where y is the number of transistors, x is time, a is the initial number of transistors, and k is the growth rate.

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Answer:

Step-by-step explanation:

120=10*12

120=5*2*4*3

120=5*2*2*2*3

120=(2^3)*3*5

Based on an equation, the weight of each train is as follows:

An equation is an algebraic statement of the equality of two or more mathematical expressions.

An equation uses the equation symbol (=) to differentiate it from a mathematical expression that combines values, variables, constants, and numbers with mathematical operands.

The total weight of Train A and Train B = 225 tons

Let the weight of Train B = x tons

Let the weight of Train A = x + 27 tons

2x + 27 = 225

2x = 198

x = 99

Train A = 126 tons (99 + 27)

Train B = 99 tons

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The correct expression that represents the number of bracelets you have after h hours would be:60 = 28 + 5h. option A (28 + 5h  ) is correct.

Based on the given information, the correct expression that represents the number of bracelets you have after h hours would be:

60 = 28 + 5h

This is because you start with 28 bracelets and make 5 bracelets every hour. So after h hours, you would have made 5h bracelets, and the total number of bracelets you have would be:

Total number of bracelets = Starting number of bracelets + Number of bracelets made

Total number of bracelets = 28 + 5h

If you substitute h = 6 into the equation, you can see that after 6 hours, you would have made 5 x 6 = 30 bracelets, and the total number of bracelets you would have is:

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Question

You need 60 bracelets for a craft fair. You begin with 28 bracelets and make 5 bracelets each hou a. Choose an expression that represents the number of bracelets you have after h hours.

A. 28 + 5h                                     B. 60 + 28h

C. 60 + 5h                                     D. 5 + 60h

The correct expression after subtraction is,

⇒ 7/8 - 3/4 = 1/8

Option C is true.

Subtraction in mathematics means that is taking something away from a group or number of objects. When you subtract, what is left in the group becomes less.

Now, We can all the expressions as,

A). 3/4 - 1/2 = 1/4

LHS;

⇒ 3/4 - 1/2

⇒ (6 - 4) / 8

⇒ 4/8

⇒ 1/2 ≠ 1/4

Hence, It is not true.

B. 9/16 - 4/8 = 5/8

LHS;

⇒ 9/16 - 4/8

⇒ (9 - 8)/16

⇒ 1/16 ≠ 5/8

Hence, It is not true.

C. 7/8 − 3/4 = 1/8

LHS;

⇒ 7/8 - 3/4

⇒ (7 - 6)/8

⇒ 1/8

Hence, It is true.

D. 7/15 − 1/3 = 6/15

LHS;

⇒ 7/15 - 1/3

⇒ (7 - 5)/15

⇒ 2/15 ≠ 6/15

Hence, It is not true.

E. 1/2 − 1/20 = 10/20

LHS;

⇒ 1/2 - 1/20

⇒ (10 - 1)/20

⇒ 9/20 ≠ 10/20

Hence, It is not true.

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Since the rectangular prism holds exactly 24 unit cubes, the volume of the prism is equal to 24 cubic units.

Mathematically, the volume of a rectangular prism can be calculated by using this formula:

Volume = L × W × H

Where:

Generally speaking, the volume of a rectangular prism is directly proportional to the number of unit cubes. Based on the information provided above, we can reasonably infer and logically deduce that volume of this rectangular prism is equal to 24 cubic units because it holds exactly 24 unit cubes.

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In mathematics, Z means complex number and it is represented as (a+ib) where a is real part and b is the imaginary part.

In mathematics, the number are represented by using some certain notations, like N for all natural number, Z for all complex numbers, R for all real numbers.

Now, here the formula of Z is asked, Z is a combination of two number

Z = a+ib

Where, a is real part, b is the imaginary part and "i" is called the notation Iota that is used with the imaginary part to represent the imaginary part.

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Answer:

2

Step-by-step explanation:

p/2-5

You can use PEMDAS to help:

Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

So, first we have to substitute 14 for p to get:

14/2-5

Next, comes division before subtraction, so we can rewrite the equation as this:

(14/2)-5

7-5

=2

Measure of MP is 10 units.

Angle bisector theorem states that if a line segment is drawn from a vertex of a triangle to the opposite side such that it bisects the angle, then the two parts of the opposite side which are divided by the line segment is proportional to the other two sides of the triangle.

Given is a triangle MNO.

Line segment NP bisects the angle MNO.

MO is divided into two segments MP and PO.

By the Angle Bisector Theorem,

MP / PO = MN / ON

Substituting,

MP / 8 = 15 / 12

MP = (15 / 12) × 8

MP = 10

Hence the measure of MP is 10.

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The given statement "Two vectors are linearly dependent if and only if they are collinear" is true because one is a scalar multiple of the other.

Two vectors are linearly dependent if and only if one of them is a scalar multiple of the other. This means that if you have two vectors, say v and w, then there exists a scalar c such that v = cw or w = cv.

If v and w are collinear, then they lie on the same line and one is a scalar multiple of the other. Specifically, if v = (a, b) and w = (c, d) are collinear, then there exists a scalar k such that v = kw, which means that a = kc and b = kd.

Conversely, if v and w are linearly dependent, then one is a scalar multiple of the other, which means that they lie on the same line and are collinear.

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Answer: the probability of being offered both jobs is 0.05, or 5%

Step-by-step explanation:

To solve this problem, we can use the formula:

P(A or B) = P(A) + P(B) - P(A and B)

where P(A or B) is the probability of getting at least one job offer, P(A) is the probability of getting an offer for job A, P(B) is the probability of getting an offer for job B, and P(A and B) is the probability of getting an offer for both jobs.

Substituting the given values, we get:

0.40 = 0.25 + 0.20 - P(A and B)

Solving for P(A and B), we get:

P(A and B) = 0.25 + 0.20 - 0.40 = 0.05

Therefore, the probability of being offered both jobs is 0.05, or 5% (rounded to two decimal places).

Answer: 16 lbs.

Step-by-step explanation:

If there are 7 packages and all of the packages weigh the same, then you would divide the number of packages by the total weight of the packages.

112÷7=16. 16 would be the weight of each package individually.

So, the answer is C;16 lbs.