How do you calculate 2 + 3 x 7?
a. 2+3 x 7 = 2+21= 23
b. 2+7x7 = 2 + 21 = 35
C. 2+7x3 = 2 + 21 = 23

Therefore the solution to the given question is option d)128.78 for this particular equation.

Many different definitions exist for a mathematical equation. In algebra, a statement that mathematically establishes the equality of two mathematical expressions is known as an equation.. Consider the equation 3x + 5 = 14, where 3x + 5 and 14 are two expressions that are separated by the symbol "equal." Mathematical variables are used in even the most fundamental and straightforward algebraic equations.

Here,

=> v/9.4 = 13.7

Consider the equation 3x + 5 = 14, in which the terms 3x + 5 and 14 are separated by the word "equal." Even the simplest and most easy algebraic equations need mathematical variables.

=> v = 13.7*9.4

=> v= 128.78

Therefore the solution to the given question is option d)128.78 for this particular equation

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The probability that the selected marble will not be green is 21/25.

Probability is a measure of how likely something is to occur.

The probability is computed by dividing the total number of possible outcomes by the number of possible ways the event could occur.

An event's probability is a number between 0 and 1, where, roughly speaking, 0 denotes the event's impossibility and 1 denotes certainty.

So, we know that:

The bag contains: 2 red, 4 green, 10 yellow, and 9 purple

Probability formula: P(E) = favourable events/total events

Now, calculate as follows:

P(not green) = 21/25

Therefore, the probability that the selected marble will not be green is 21/25.

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Answer:

60%

Step-by-step explanation:

Answer: The answer to your question is 60%

Step-by-step explanation: The total number of marbles in Joseph's bag is:

2 (red) + 4 (green) + 10 (yellow) + 9 (purple) = 25

The probability of choosing one marble that is not yellow can be found by dividing the total number of marbles that are not yellow by the total number of marbles in the bag:

P(not yellow) = (2 red + 4 green + 9 purple) / 25

P(not yellow) = 15/25

P(not yellow) = 3/5

P(not yellow) = 0.6 or 60%

Therefore, the answer is 60%.

The total distance it travels during one full cycle of motion is 4A. Hence, the correct answer is D.

When a block on the end of a spring is pulled to position x = A and released from rest, it begins to oscillate. The block will oscillate back and forth along the x-axis between the position x = A and the position x = -A.

In one full cycle of its motion, the block will travel from position x = A to position x = -A and back to position x = A. The total distance traveled by the block in one full cycle of its motion is the sum of the distance traveled in each direction.

The distance traveled by the block in one direction is A, and the distance traveled in the other direction is A. So, the total distance traveled by the block in one full cycle of its motion is:

It's important to note that the amplitude of the oscillation is equal to the distance from the equilibrium position to the position x = A. This means that the total distance the block moves in one full cycle is equal to twice the amplitude of the oscillation.

Therefore, the total distance traveled by the block in one full cycle of its motion is:

Hence, the correct answer is D, 4A.

This question should be provided with answer choices, which are:

The correct answer is D.

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We label sides as: the shorter leg is 30-degree angle, the longer leg is 60-degree angle and the hypotenuse is 90 degrees.

Any triangle with a 90-degree angle is considered a right triangle. A unique variety of right triangle with a 30-degree angle and a 60-degree angle in addition to the right angle is known as a 30-60-90 triangle.

Triangle Properties 30-60-90

A triangle with sides of 30-60-90 can be recognized by how they relate to the angles.

The shorter leg is the one that faces the 30-degree angle.

The longer leg is the one that faces the 60-degree angle.

The hypotenuse is the side that faces the right angle of 90 degrees.

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Answer:

answer is 23&11

Step-by-step explanation:

no explanation

The Value of x is -1/2 in this Linear equation

As we have the equation  2(4x+2)= 4x -12(x-1)

So we can conclude that the Value of x is 1/2

we can verify the answer by putting back the value of x in the equation and both sides will have the same value.

2(4x+2)= 4x -12(x-1)

2(4*1/2+2)= 4*1/2 -12(1/2-1)

2(2+2) = 2-6+12

8=8

Hence Proved that x=1/2 is the correct answer

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Answer:

456 money left and 3 left

Answer:

$246.70

Step-by-step explanation:

Assuming this is a percentages question

12% of $324.60 is $38.95

$324.60-$38.95=$285.65

13% of what was left ($285.65) is $37.13

$285.65-$37.13=$246.70

The graph of the given equation will be a straight line.

The equation of a straight line is y = m x + c m is the gradient and c is the height at which the line crosses the y-axis, also known as the y -intercept.

Given is an equation, y = -2x+1, we are asked to plot a graph for the same,

To plot the graph, we will firstly find the coordinates,

Therefore, the equation is y = -2x+1,

Put x = 0,

y = 1

The first coordinates = (0, 1)

Put y = 0

x = 1/2

The second coordinates = (1/2, 0)

Now, plot this points on the graph, and connect them, since the equation is linear, we will get a straight line, passing through these points, that will be the line of the equation given, (refer to graph attached)

Hence, the graph of the given equation will be a straight line.

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In this rule, we have to find the value of any of the variables either first or second and substitute its value in the other equation.

It is best to use the substitution method when equations are either given in form or can be gain into the form of x = ay + b and y = mx + n.

A procedure to answer a system of linear equations in more than two variables algebraically is the substitution method. In this process, we find the value of any one of the variables by alienating it on one side and taking every other term on the other side of the equation.

Then we substitute that first value in the second equation.

The substitution method is one of the algebraic processes to answer simultaneous linear equations. It implies substituting the value of any one of the variables from one equation into the other equation.

And at last, we can put the value of y in any of the given equations to find x.

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Answer: y=69x+b

Step-by-step explanation:

x=# of months of her cable bill

b=# movie fees

y=total bill

The correct option is C. The ordered pairs: {(–2, 4), (0, 0), (2, 4)}

An ordered pair in mathematics is a set of two things. The order of the objects in the pair matters because, unless a = b, the ordered pair differs from the ordered pair. Ordered pairs are also known as 2-tuples or 2-length sequences.

It's important to remember that, the first the showed in the image represents a domain, and the second set represents a range. That means the values -2, 0, 2, must appear as the first value in the coordinate, and the values 4 and 0, must appear second.

Now, if we associate the given diagram with coordinates, it would be like

Therefore, the right answer is choice c.

Additionally, this relation models a quadratic function actually, because -2 and 2 have the same image 4.

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Yes, 256 can be written in exponential form as 2^8 where 2 is the base and 8 is the exponent.

The Triangle Inequality Theorem, which asserts that the sum of a triangle's two side lengths is always greater than the third side, will suffice. You will have a triangle if this holds true for each of the three possibilities of increased side lengths.

Let's use the triangle inequality theorem to examine the characteristics of a triangle's sides.

The two requirements for a triangle's sides are:

(1) The two sides added together are always larger than the third side.

a+b>c

a+c>b

b+c>a

(2) Less exists between the two sides than there does between the third side.

|a-b|<c

|a-c|<b

|b-c|<a

Therefore, if and only if the total of two sides is always larger than the third side and the difference of the two sides is less than the third side, 3 lengths could be the measures of the edges of a triangle.

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In the given expression, expression [tex]x^3[/tex]−5x+2 is a polynomial expression. So the option (i) is correct.

In the given question we have to find which of the following expression are polynomials.

As we know that,

The Greek words "polynomial" and "nominal" are the origins of the word polynomial, which is translated as "many phrases" when combined. There is no limit to the number of terms that a polynomial can have.

Using mathematical operations like addition, subtraction, multiplication, and division, a polynomial is an equation made up of variables, constants, and exponents. The expression is categorized as monomial, binomial, or trinomial depending on how many terms are present in it.

So if we see on the given expression then we can see that the option (i) [tex]x^3[/tex]−5x+2 have the degree 3 so [tex]x^3[/tex]−5x+2 is a polynomial expression.

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13 is considered as a prime number as there are only two factors of 13 which are equals to 1 and 13 itself.

As given in the question,

Given number is equal to 13,

Prime numbers are those numbers which has only two factors : one and the number itself.

Here is not divisible by any other number.

Factors of 13 are equals to :

1 and 13 itself.

There are only two factors of thirteen which are equals to one and number 13 itself.

Therefore, 13 is considered as a prime number because there are only two factors of 13.

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On solving the provided question,  annual rate is 2% while doing calculations through simple interest.

Borrowers must pay simple interest to lenders as a fee for a loan. Compound interest is not taken into account while calculating it; just the principal is used. Simple interest is applicable to all loans. It is also the form of interest that banks give their customers on their savings accounts. Simple interest can be calculated using a simple formula. Simply multiply the loan's principal by the interest rate and the period to get the total. Although some mortgages employ this calculation approach, this type of interest typically relates to auto loans or short-term loans.

Let the annual rate be x%

Principal Amount (p)= $600

Annual Rate (r) = x % (Assumed)

Time (t) = 5 years

Simple Interest (I) = $60

Use the simple interest formula given below:

SI = p×r×t/100

r = 60 ×100/600× 5

r = 2%

Thus, the annual rate of interest is 2 %.

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Question:

April took out a $600 loan from the bank. At the end of 5 years, she pays back the principal, plus $60 simple interest. What was the interest rate? Enter your answer in the box.

The cost of parkers tuition is $19090.9.

The percentage is defined as the ratio of two numbers expressed in the fraction of 100 parts. It is the measure to compare two data, the % sign is used to express the percentage.

Given that,

The percent he pays with college tuition = 45%

The fee in percent which is not paid by scholarship = 100 - 45 = 55%

Let x be the total amount of parker's tuition, then the value of x:

55/100x = 10,500

55x = 10,50000

x= 19090.9

x = $19090.9

Thus, the cost of parkers tuition is $19090.9 if Parker was able to pay for 45 percent of his college tuition with his scholarship. The remaining $10,500 he paid for with a student loan.

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The three main types of 3D objects are polygonal meshes, NURBS, and implicit surfaces.

There are several types of 3D objects, but the three main categories are:

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The link between data pieces is displayed in tables of values. In science lesson, you might utilize a values table.

Mathematics encompasses the study of numbers, formulas and related structures, shapes and the spaces in which they exist, quantities and their variations, and spaces in which they exist. A function is an association between a set of inputs, each of which has an output. Simply described, a function is a relationship between inputs and outputs, where each input results in a single, distinct output. Each function has a domain and a codomain, often known as a scope. Typically, the letter f is used to denote functions (x). is the input. There are four different categories of functions. based on one-to-one functions, many-to-one functions, on functions, within functions, and one-to-one functions.

given

The link between data pieces is displayed in tables of values. In science lesson, you might utilize a values table.

Data is recorded in tables of values by scientists and researchers, who then examine the data to look for patterns. As a result, they can use this pattern to anticipate future events.

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Answer:

53

Step-by-step explanation:

[tex]\frac{477}{9}[/tex]

    53

9[477]

 -45

     27

    -27

       0  

The sum of 2 sides is greater than the largest side so the triangle can be formed.

Triangle Properties

Any two triangle sides can add up to a length that is longer than the third side. The greatest side of a triangle is the side that faces the largest angle. The sum of the triangle's internal opposing angles is equal to any of its outer angles.

According to the sides of a triangle rule, the lengths of any two sides of a triangle must add up to more than the length of the third side.

Sum of 2 sides each are :

7 + 10 = 17 cm

7 + 5 = 12 cm

5 + 10 = 15 cm

So the sum of 2 sides is greater than the largest side so the triangle can be formed.

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16 is the different common denominator, we can use to solve 1/2+3/8.

The result using 16 as common denominator is equivalent to the sum 1/2+3/8.

A common denominator is a denominator that you can reach by both denominators.

We can obtain common denominators by multiplying both numerator (top) and denominator (bottom) by the same amount.

Given expression

1/2 + 3/8

multiplying and dividing 4 with 1/2

4/8 + 3/8

Lowest common denominator = 8

= (4 + 3)/8

= 7/8

Sum = 0.875

Taking expression:

1/2 + 3/8

Multiplying and dividing 8 with 1/2 and 2 with 3/8.

8/16 + 6/16

Different common denominator = 2 × 8 = 16

Now,

= (8 + 6)/16

= 14/16

Result = 0.875

Hence, the result using different common denominator = 16 for solving

1/2 + 3/8 is equivalent to the sum of 1/2 + 3/8.

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Pythagorean triplets 4cm,6cm,8cm,24cm,10cm,26cm,13cm,27cm,30cm 2 cm 17 cm 9 cm are 4 , 6 , 8cm and 24 , 10 , 26cm.

What is Pythagorean triplets ?

Pythagorean triplets are a set of three positive integers (a, b, c) such that [tex]a^{2}+b^{2} = c^{2}[/tex]. This relationship is known as the Pythagorean theorem, named after the ancient Greek mathematician Pythagoras. These triplets are often used in geometry, particularly in the study of right triangles.

To find pythagorean triplets ,

The question is asking to identify which sets of 3 positive integers from the given list satisfy the equation [tex]a^{2}+b^{2} = c^{2}[/tex]. The sets of numbers that satisfy this equation are 4 cm, 6 cm, 8 cm and 24 cm, 10 cm, 26 cm, these are pythagorean triplets. The other sets of numbers do not satisfy the equation and hence are not Pythagorean triplets.

Pythagorean triplets 4cm,6cm,8cm,24cm,10cm,26cm,13cm,27cm,30cm 2 cm 17 cm 9 cm are 4 , 6 , 8cm and 24 , 10 , 26cm.

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The measure of angles are,

m ∠K = 50°

m ∠L = 90°

m ∠M = 40°

m ∠LMN = 140°

What is triangle?

A triangle is a polygon with three vertices and three sides. The angles of the triangle are formed by the connection of the three sides end to end at a point. The triangle's three angles add up to 180 degrees in total.

Let the triangle KLM is given.

We have to find the measure of each angle of triangle.

Since the measure of three angles of triangle is 180 degree.

⇒  m ∠K + m ∠L + m ∠M = 180°

                   5x + 9x + 4x = 180°

                                  18x = 180°

                                      x = 10°

⇒ m ∠K = 5x = 5(10°) = 50°

m ∠L = 9x = 9(10°) = 90°

m ∠M = 4x = 4(10°) = 40°

m ∠LMN = m ∠L + m ∠K

               = 90° + 50°

m ∠LMN = 140°

Hence,

m ∠K = 50°

m ∠L = 90°

m ∠M = 40°

m ∠LMN = 140°

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The rational root theorem and factor theorem helps you in solving polynomial equation as they help in solving the question and finding the roots of it.

A mathematical expression made up of coefficients and uncertainty that only makes use of additions, subtractions, multiplications, and positive integer powers of variables is known as a polynomial. The formula x2 4x + 7 denotes a single indeterminate x polynomial. An expression in mathematics known as a polynomial is made up of variables (also known as indeterminates) and coefficients that may be added, subtracted, multiplied, and raised to negative integer powers of non-variables. An algebraic statement with variables and coefficients is called a polynomial. An expression can only contain the operations addition, subtraction, multiplication, and non-negative integer exponents. Polynomials are the name for these expressions.

here,

The rational root theorem and factor theorem helps you in solving polynomial equation as they help in solving the question and finding the roots of it.

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Answer:

49875 cm^3

Step-by-step explanation:

We use the formula, "V = bh" to find the volume of one cylinder (can), where "b" is the area of the circle base of the cylinder, and "h" is the height.

First, we can find the volume of one cylinder.

The base would be calculated by "πr^2", where "r" is the radius. To find the radius, we can use the information given in the diagram: four cans in a row have a length of 84 cm. Thus, if we divide 84 by 4, we get the diameter of one can. If we divide that diameter by 2, we get the radius of one can: 84/4/2 = 10.5 = r

πr^2 --> π10.5^2 = 110.25π

The height is shown in the diagram: one can fits perfectly inside the box, so the height dimension of the box is the same as the can's height dimension.

h = 12

Now, we can calculate the volume of one can: V = 12 * 110.25π = 1323π

As the problem calls for the volume of 12 cans, we can multiply the volume of one can by 12 to find the volume of 12 cans:

12 * 1323π = 15876π = 49875 cm^3

Answer:

Step-by-step explanation:

Firstly we have to find the dimensions of the can.

Height of can - 12 cm

Diameter of can - 21 cm

The radius of can - 21/2 = 10.5 cm

Volume of can - [tex]\pi r^2[/tex] * h ( height )

[tex]3.14 * 10.5^2[/tex] * 12

3.14* 110.25 *12

346.185 *12

4154.22

Volume of 12 cans - 4154.22 *12

Answer - [tex]49850.64cm^3\\[/tex]

  n = -6 is the value of n in the expression .

What does a mathematical expression mean? 

A mathematical expression is a phrase that has a minimum of two numbers or variables and at least one mathematical operation. This mathematical operation may be addition, subtraction, multiplication, or division.

                 Any combination of a number, a variable, and operation symbols is considered an expression. Two expressions are combined to form an equation, which is joined by the equal sign.

   (Xⁿ)  =  (X⁻⁸)(X²)

  (Xⁿ)  = X⁻⁸⁺²

  (Xⁿ)   = X⁻⁶

  n = -6

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Answer:

x = 1, 12

Step-by-step explanation:

Given the equation:

[tex]\displaystyle{(x-1)(x-12)=0}[/tex]

This can be set as:

[tex]\displaystyle{x-1 = 0 \ \, \text{or} \ \, x - 12 = 0}[/tex]

Solve equations like linear, add both sides by 1 for x - 1 and add both sides by 12 for x - 12:

[tex]\displaystyle{x-1 +1= 0+1\ \, \text{or} \ \, x - 12+12 = 0+12}\\\\\displaystyle{x= 1\ \, \text{or} \ \, x = 12}[/tex]

Instead of using "or" for conjunction, we can simply write the solution as x = 1, 12 (or you can also write x = 12, 1)

Additional Info

If you see the equation in form of [tex]\displaystyle{(ax+b)(cx+d)=0}[/tex] then you can just simply solve like linear separately and combine solutions together as one.

A power of two is a number of the form 2ⁿ where n is an integer, that is, the result of exponentiation with number two as the base and integer n as the exponent.

The exponential function is a type of mathematical function which are helpful in finding the growth or decay of population, money, price, etc that are growing or decay exponentially.

Example: Jonathan was reading a news article on the latest research made on bacterial growth. He read that an experiment was conducted with one bacterium. After the first hour, the bacterium doubled itself and was two in number. After the second hour, the number was four. At every hour the number of bacteria was increasing. He was thinking what would be the number of bacteria after 100 hours if this pattern continues. When he asked his teacher about the same the answer he got was the concept of an exponential function.

Exponential function, as its name suggests, involves exponents. But note that, an exponential function has a constant as its base and a variable as its exponent but not the other way round (if a function has a variable as the base and a constant as the exponent then it is a power function but not an exponential function). An exponential function can be in one of the following forms.

In mathematics, an exponential function is a function of form f (x) = ax, where “x” is a variable and “a” is a constant which is called the base of the function and it should be greater than 0.

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