Expression is a constant, variable or constant multiplied by a variable separated by operator.
What is algebraic expression and identity?Identity, as we all know, is equality, which holds true regardless of the variable's value. These identities are algebraic formulas that show that for all possible values of the variable, the Left-Hand Side (LHS) and the Right-Hand Side (RHS) of the equation are equal. A phrase that can have any value is called a variable.
What are the types of algebraic expressions?Monomial, polynomial and binomial are the three types of algebraic expression.
An expression with variables, constants, and algebraic operations is known as an algebraic expression (like subtraction, addition, multiplication, etc.). Terms comprise expressions. For instance: 5x+20y, 6-8x.
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The top and the bottom of the slide are level with the ground, which has a slope of 0.
A picture shows a slide. The bottom of the slide is 18 inches above the ground and the top of the slide is 8 feet above the ground. The distance between the bottom of the slide and the top of the slide is marked as “12 feet”. Starting from the bottom of the slide, the slide is horizontal with length “1 foot”, a ramp, and horizontal at the top of the slide with length “1 foot”.
a. What is the slope of the main portion of the slide?
.
Question 2
b. Describe the change in the slope when the bottom of the slide is only 12 inches above the ground. Explain your reasoning.
a) The slope of the main portion of the slide is of: 5/6 = 0.8333.
b) If the bottom of the slide was only 12 inches above the ground, then the slope would be of 1/3 = 0.3333.
How to obtain the slope?The slope of an inclined object is obtained as the division of the height of the object by the length of the object.
From the text, the parameters for the slide are given as follows:
Height: 18 - 8 = 10 feet.Length: 12 feet.Then the slope of the slide is of:
Slope = 10/12 = 5/6 = 0.8333.
After the change in the bottom, the parameters would be of:
Height: 12 - 8 = 4 feet. (difference from top and bottom)Length: 12 feet.Then the new slope of the slide is given as follows:
Slope = 4/12 = 1/3 = 0.3333.
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Question : A good practice when using credit cards is to routinely
A: take advantage of major sales.
B: use one credit card to pay debt on another credit card.
C: pay the complete balance each month.
D: accept all pre-approved credit card offers.
Answer: C: pay the complete balance each month
2.
1. A clock that strikes only the hours has just finished striking a total of 9
times in the last 24 hours. What hour did it just finish striking?
Answer:
6 1/2 hours 12-hour clock
18 1/2 hours 24- hour clock
Step-by-step explanation:
I attached a picture of how I solved it!
The clock just crossed the 9th hour.
What is a mathematical function, equation and expression? function : In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function.expression : A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.equation : A mathematical equation is used to equate two expressions.Given is that a clock that strikes only the hours has just finished striking a total of 9 times in the last 24 hours.
Since, the clock strikes only on hours, the clock just crossed the 9th hour.
Therefore, the clock just crossed the 9th hour.
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In ΔQRS, s = 5.2 inches, ∠S=129° and ∠Q=30°. Find the length of r, to the nearest 10th of an inch.
The measure of the length r (SQ) of the triangle ΔQRS will be 2.40 inches.
What is the sine law?The Law of Sines The law of trigonometric functions, sine law, sine formula, or sinusoidal rule is a trigonometric equation that relates the sizes of any triangle's edges to the sines of its orientations.
The sine law in the triangle ΔQRS is given as,
QR / sin S = SQ / sin R = SR / sin Q
The third angle of the triangle ΔQRS is given as,
∠Q + ∠R + ∠S = 180°
∠R + 30° + 129° = 180°
∠R = 21°
Then the measure of the length r (SQ) will be calculated as,
5.2 / sin 129° = SQ / sin 21°
SQ = 2.40 inches
The measure of the length r (SQ) of the triangle ΔQRS will be 2.40 inches.
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What is the factor of x³ 6x² 12x 8?
One factor of equation x³ + 6x² + 12x + 8 is (x + 2).
Describe equation.
Two expressions joined by an equal sign form a mathematical statement known as an equation. An equation is, for instance, 3x - 5 = 16. We can solve this equation and determine that the value of the variable x is 7.
According to the given question:
Here,
The Expression is
=> x³ + 6x² + 12x + 8
=> (x³ +8) + 6x (x+2)
= > (x + 2) ( − 2x + 4) + 6x(x + 2)
= >(x + 2) { − 2x + 4 + 6x}
= > (x + 2) ( + 4x + 4)
=> (x + 2) { x² + 2(2)(x) +2²}
=> (x+2) is a factor
Therefore, one factor of equation x³ + 6x² + 12x + 8 is (x + 2).
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Use a recursive function for the geometric sequence 2, −6, 18, −54, ... to represent the 9th term.
a. f(9)=f(8)•(-3)
b. f(9)=f(1)•(-3)^8
c. f(9)=f(1)+3(8)
d. f(9)=f(8)+3(8)
The geometric sequence 2, −6, 18, −54, ... to represent the 9th term is
d. f(9)=f(8)+3(8)
A geometric sequence is a sequence of numbers in which each term after the first is found by multiplying the previous one by a fixed, non-zero number, called the common ratio. In the given sequence, the common ratio is -3, so the nth term of the sequence can be found by multiplying the previous term by -3.
Using the recursive formula for a geometric sequence, the nth term can be found by multiplying the first term, f(1), by the common ratio raised to the (n-1) power, or f(n) = f(1)•(-3)^(n-1). In the given sequence, f(1) is 2, so the 9th term can be found by multiplying 2 by -3 raised to the 8th power, or f(9)=f(1)•(-3)^8.
Alternatively, the nth term can also be found by multiplying the previous term, f(n-1), by the common ratio, or f(n) = f(n-1)•(-3). Since the 8th term in the given sequence is -54, the 9th term can be found by multiplying -54 by -3, or f(9)=f(8)•(-3).
Therefore, the 9th term in the given sequence is -486 and the correct answer is d. f(9)=f(8)+3(8).
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Perform the indicated operation.
g(n) = n +5
h(n)= n^2 −5n
Find (g- h)(n)
A) n²-6n-5
B) -n²+4n-3
C) n²+6n-5
D) -n²+6n+5
Answer:
D
Step-by-step explanation:
( g-h)(n).
n+5 - (n^2-5n)
-n^2+5n+n+5
-n^2+6n+5
How do you write 308 in expanded form?
Find the greatest common factor. ab4c7, a7b4c
We know that,
Greatest common factor= the greatest common factor is the greatest factor that divides both numbers.
According to question.
Given data,
Factor of a= a
Factor of b=b× b× b× b
Factor of c=c× c× c× c× c× c× c
Therefore,
Factor of a=a× a× a× a× a ×a ×a
Factor of b4=b ×b ×b× b
Factor of c=c
Greatest common factor=ab4c
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Which inequality repreent the compound in equality x i greater than 3 and x i le than 5
The compound inequality x > 3 or x < 5 is 4 , that set of all real numbers.
What is inequality ?
If an inequality has no real solution, this means that there are no numbers that can be substituted into the inequality to make the statement true. If an inequality has all real numbers as the solution, this means that every real number can be substituted into the inequality to make a true statement.
Have given,
x > 3 and x < 5
Since this compound inequality is an or statement , it includes all of the integral numbers in each of the solutions, which in this case is all the numbers on the number line .
The region of the line greater than 3 and less than 5 that number is 4.
Hence,
The compound inequality x > 3 or x < 5 is 4 , that set of all real numbers .
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Have given,
x > 3 and x < 5
Since this compound inequality is an or statement , it includes all of the integral numbers in each of the solutions, which in this case is all the numbers on the number line .
The region of the line greater than 3 and less than 5 that number is 4.
The compound inequality x > 3 or x < 5 is 4 , that set of all real numbers.
What is arithmetic and example?
DMAS is four type of arithmetic we deal everyday in our mathematical problem
What are four basic property of arithmetic?
Commutative, associative, distributive and identity are the four basic properties of arithmetic.
Write the name of the arithmetic which is commutative.Addition and multiplication ate two arithmetic which is commutative.
Division, addition, subtraction and multiplication are the four type of arithmetic
Examples:
1+1=2 is addition
4-2=2 is subtraction
3*2=6 is multiplication
4/2=2 is division
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Why do we use expression?
To express a mathematical operation symbolically, we employ a mathematical expression.
Describe expression.In mathematics, an expression is a sentence that has at least two terms and an operator in the middle. Expressions may be divided into two categories: numerical expressions, which include simply numbers, and algebraic expressions, which contain both numbers and variables. A mathematical expression consists of two parts: terms and operator, where terms refer to variables and integers. It is referred to as a constant term if an expression just contains numbers, and it is known as a coefficient if it also contains numbers and a variable.
Why do we express ourselves?We utilize expressions to symbolically represent any mathematical activity as well as mathematical models. The specifics of our computation, for instance, can be succinctly represented in terms of two or more mathematical terms. We can identify unknown numbers with the equal sign, allowing us to resolve difficult issues. In real life, we utilize expressions to figure out how much we make and spend, how quickly things change, how long it will take to go a certain distance, and other things. When calculating the rate of change, we use the differentiated term dy/dx. When calculating speed, time, and distance, as well as time and speed, we employ equations with variables.
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Answer:
To try and relate or understand our feelings and try and give an example. For example the expression “it’s raining cat’s and dog’s” well that means it’s raining heavily!
Hope I helped
Step-by-step explanation:
Solve the systems of equations.
Answer: x=2, y=-8
Step-by-step explanation: there are a couple of different methods you can use, my favourite is substitution
to do this, find a value of x or y from one equation and plug it into the other. let's use x in this case
so we have 13x-6y=22 and x=y+6
for the x value of the first equation, plug in x=y+6 from the second equation to get:
13(y+6)-6y=22
then you solve for y,
13y+78-6y=22
7y=-56
y=-8
then to solve for x, plug in your y value to either of the first 2 equations. lets use x=y+6
so you'd have x=(-8)+6 to give you x=2
hope this helps!
A sunflower is 3 inches tall after 1 week, 5 inches after 2 weeks, and 7 inches after 3 weeks. What is the recursive rule and explicit rule of this sequence?
Answer: f(x)= 2x+ 1
Step-by-step explanation:
Let's set up an equation
f(x)=mx+b
We know it's 3 inches tall and grows 2 inches weekly.
Our equation is
f(x)= 2x + 1
Now let's test the week is 1
f(1) = 2(1) +1
f(1) = 3
Let test the week is 2
f(2) = 2(2)+1
f(2) = 5
So we know this equation work
What is the value of continuous function?
The value of a continuous function is that it produces a single output for any given input, no matter how small the change in the input. This makes it reliable and predictable, allowing for precise calculations and predictions.
Continuous functions are a type of mathematical function that produces a single output value for any given input. This means that no matter how small the change in the input is, the output value remains the same. This makes continuous functions reliable and predictable, allowing for precise calculations and predictions. As an example, a continuous function can be used to calculate how far an object will travel over a certain amount of time if provided with the initial velocity and acceleration. This is because the function will not change its output value when the input is altered, no matter how small the change is. Continuous functions are therefore an essential tool for many applications in mathematics and science.
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Olivia bought snacks for her team's practice. She bought a bag of chips for $2.25 and
a 8-pack of juice bottles. The total cost before tax was $11.69. Which equation could
be used to determine j, how much each bottle of juice costs?
Each juice bottle costs $9.44.
What is a juice bottle?
Liquids that are flavoured with concentrate or other biological food sources, such meat or seafood, such as clam juice, are referred to by this term. It is added to foods or other drinks, like smoothies, as an ingredient or flavor.
To determine the cost of each bottle of juice, you can set up the following equation:
j + 2.25 = 11.69
Where j is the cost of each bottle of juice.
To solve for j, you can subtract 2.25 from both sides of the equation:
j = 11.69 - 2.25
This simplifies to:
j = 9.44
So, each bottle of juice costs $9.44.
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How many terms are there in the expression 5xy² 3xyz?
The question uses 6 mathematical phrases. The coefficient is made up of two integers, and the other variables are x, y, z, and A.
Describe expression.A mathematical expression is a sentence that describes the relationship between two or more concepts and one or more symbols. There are many distinct words, including numbers, variables, and variables with coefficients. Different mathematical operators can be used to denote an equation, including the signs for addition and subtraction, plus and minus, multiplication and division, equal and inequal signs, and so on.
How can we figure out how many words there are in the question?Using the formula above, 5xyA2 = 3xyz
There are six words and one equal sign, as we can see.
A, B, C, and There are six words and one equal sign, as we can see.
Five, three, and A are numerals and four variables, respectively. The coefficient of the variables is represented by the numbers.
A, y, and x are all used twice, as well. A2 or the square of A is how you write the product of A and A.
When we multiply 5 by x, y, and A2, we get the formula 3xyz, where 3 is multiplied by x, y, and z.
hence, we determine 6 terms in the question
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The whales' star cornerback is paid $1 million and is guaranteed a 19% pay raise for the next three years. What will his salary be three years from now?.
The income of whales star after 3 years and getting 19% rise every year will be $1685159 .
Given, The whales' star cornerback is paid $1 million and is guaranteed a 19% pay raise for the next three years .
To get the salary of whale star after 3 years of increment with 19%.
Salary = $1 million
Salary after 1st increment = $1 million + $1 million of 19%
Salary after 1st increment = $1190000
Salary after 2nd increment = $1190000 + $1190000 of 19%
Salary after 2nd increment = $1416100
Salary after 3rd increment = $1416100 + $1416100 of 19%
Salary after 3rd increment = $1685159
Final salary after 3 years will be $1685159.
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What is AAS similarity theorem?
1)No regime de juros composto, encontre as taxas trimestral e anual equivalentes à taxa de 1,05% ao mês
2)Calcule a taxa de juros compostos equivalente a uma taxa efetiva de 1% ao mês, nos períodos a seguir:
a)ao semestre;
b)ao ano.
alguém pode me ajudar a entender como fazer esses tipos de exercícios? estive tentando aprender a um tempo mas não to conseguindo e o livro não ajuda muito.
Answer:
Para encontrar a taxa trimestral equivalente à taxa de 1,05% ao mês, basta dividir a taxa mensal por 3, pois um trimestre é composto por 3 meses. Portanto, a taxa trimestral equivalente à taxa de 1,05% ao mês é de 1,05% / 3 = 0,35%.
Para encontrar a taxa anual equivalente à taxa de 1,05% ao mês, basta multiplicar a taxa mensal por 12, pois um ano é composto por 12 meses. Portanto, a taxa anual equivalente à taxa de 1,05% ao mês é de 1,05% x 12 = 12,6%.
2)a) Para calcular a taxa de juros compostos equivalente a uma taxa efetiva de 1% ao mês ao semestre, basta multiplicar a taxa mensal por 6, pois um semestre é composto por 6 meses. Portanto, a taxa de juros compostos equivalente a uma taxa efetiva de 1% ao mês ao semestre é de 1% x 6 = 6%.
b) Para calcular a taxa de juros compostos equivalente a uma taxa efetiva de 1% ao mês ao ano, basta multiplicar a taxa mensal por 12, pois um ano é composto por 12 meses. Portanto, a taxa de juros compostos equivalente a uma taxa efetiva de 1% ao mês ao ano é de 1% x 12 = 12%.
How do you solve a 3 step problem?
Similar to one-step and two-step equations, the basic objective of multi-step problems is to isolate the unknown variable on one side of the equation while maintaining the constant or number on the other side.
Solving a 3-step problem typically involves the following steps:
Read the problem carefully and understand what it is asking for. Make sure you know what the given information is and what you need to find.Identify the relevant information and decide what you need to do with it. You may need to do some calculations or use some formulas to help you solve the problem.Use the appropriate steps to solve the problem. Make sure you show all of your work and double-check your solution to make sure it is reasonable.It can be helpful to break the problem down into smaller parts and solve each part separately. This can make the problem feel more manageable and help you avoid making mistakes.
If you get stuck at any point, it can be helpful to take a break and come back to the problem later, or to ask someone for help.
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Question 3 (1 point)
What is the quotient? (3.78x10^6) divided by 12,000
O.315
31.5
315
3.15
Answer:
315
Step-by-step explanation:
multiply (3.78x10^6) first to get 3780000 then divide 3,780,000 by 12,000 to get 315
The graph of a sinusoidal function has a minimum point at (0,-10) and then has a maximum point at (2,-4)
Write the formula of the function, where x is entered in radians.
Answer:
f(x) = 6 * sin(2x) - 10
Step-by-step explanation:
We can use the given information to write the general formula of a sinusoidal function as follows:
f(x) = A * sin(B(x - C)) + D
The amplitude of the function, A, is equal to the difference between the maximum and minimum values of the function, which in this case is -10 - (-4) = 6.
The period of the function, B, is equal to the distance between consecutive maximum or minimum points, which in this case is 2 - 0 = 2.
The phase shift of the function, C, is equal to the horizontal shift of the entire function, which in this case is 0 since the minimum point is at x = 0.
The vertical shift of the function, D, is equal to the y-coordinate of the minimum point, which in this case is -10.
Therefore, the formula of the given function is:
f(x) = 6 * sin(2(x - 0)) - 10
We can simplify this formula by removing the unnecessary parentheses and constants:
f(x) = 6 * sin(2x) - 10
This is the final formula for the given sinusoidal function, where x is entered in radians.
What percentage of radioactive atoms will remain after 1 half-life?
After one half-life, 50% remain in the initial parent nuclei, 25% after two, and so on. The amount of radiation emitted by a radioactive source depends on both its half-life and the initial number of radioactive atoms present.
What are radioactive atoms?Atoms strive for stability, thus they release energy from their nucleus in the form of a particle or ray to achieve a more stable state.
The unstable atom is referred to as a radioactive atom, the process is known as radioactivity, and the energy emitted is radiation.
If these forces are out of balance or if the nucleus has an excessive amount of internal energy, an atom is unstable (radioactive).
An overabundance of neutrons or protons can make the nucleus of an atom unstable.
The initial parent nuclei still contain 50% of them after one half-life, 25% after two, and so on.
The half-life and the initial quantity of radioactive atoms present both affect how much radiation is produced by a radioactive source.
Therefore, after one half-life, 50% remain in the initial parent nuclei, 25% after two, and so on. The amount of radiation emitted by a radioactive source depends on both its half-life and the initial number of radioactive atoms present.
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Answer:
6.25%
Step-by-step explanation:
(-3,4) (6,0),(-3,4),(-8,-2) a function
There is no input mapped into two or more outputs in the given relation:
(-3,4) (6,0),(-3,4),(-8,-2)
Thus, the relation is a function.
Is the relation a function or not?A relation maps elements of a set (inputs, usually defined by the variable x) into elements of another set (outputs, usually defined by the variable y).
So, for example, the coordinate pair (x, y) means that a relation is mapping the input x into the output y.
A relation is also a function if there is no input being mapped into two or more outputs.
For the case of the given relation:
(-3,4) (6,0),(-3,4),(-8,-2)
The mappings are:
-3 → 4 (this one appears twice)
6 → 0
-8 → -2
So no input is mapped into two or more outputs, then the relation is a function.
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Jenna and Kyle are working together to address a stack of envelopes for a charity's fundraising drive. Jenna can address 10 more envelopes per hour than Kyle. The total time, in hours, it will take the two students to address all the envelopes is represented by the expression below. Which statement is true?
The correct statement regarding the together rate is given as follows:
A. The total time, in hours, it would take Jenna to address the 1800 envelopes alone is given by 1800/(x + 10).
How to obtain the together rate?The together rate is given by the sum of each separate rate, thus the sum given in the problem on the image represents the total time it takes for them to address all the envelopes.
Jenna can address 10 more envelopes per hour than Kyle, hence:
The variable x represents the number of envelopes that Kyle can address in one hour.The variable x + 10 represents the number of envelopes that Jenna can address in one hour.The number 1800 represents the total number of cards, hence from this and from the bullet points, statement A is correct.
Missing InformationThe problem is given by the image shown at the end of the answer.
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Is 990 divisible by 3 yes or no?
Yes it is divisible by 3. A number is fully divisible by three if its digit sum is also divisible by three, according to the rule of divisibility for three.
what is divisibility test?The divisibility rule is a concise and practical approach to check, often by looking at the integer's digits, whether a given integer is divisible by a given set divisor without actually executing division. Without actually doing the division procedure, you may quickly discover if a given number can be divided by a defined divisor using the divisibility test. When dividing two numbers exactly, the quotient must be an integer and the remainder must be zero.
add all number
9+9+0 = 18
and 18/3 = 6
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How do you represent three consecutive odd integers?
You represent three consecutive odd integers with x, x + 2 and x + 4
How to determine the representation of odd integersFrom the question, we have the following parameters that can be used in our computation:
Three consecutive odd integers
As a general rule
Odd integers are integers that cannot be divided by 2
Consecutive odd integers have a difference of 2
This means that the three consecutive odd integers are
x, x + 2 and x + 4
Where the least of the integers is x
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How do you find the largest and smallest number in an unsorted integer array Python?
There are 3 methods to find the largest and smallest number in an
unsorted integer array Python.
How do you find the largest and smallest number in an unsorted integer array Python?Method 1 : Using Iteration.Method 2 : Using Sort() function.Method 3 : Using max() and min() functionMethod 1:
Take a variable say mini to store the smallest element of the array and maxi to store the largest element.Set mini = arr[0] and maxi = arr[0]Check if(arr[i]<mini) then set mini = arr[i]Also check if(arr[i]>maxi) then set maxi = arr[i]After complete iteration print mini and maxi.Method 2:
Sort the array using inbuilt sort()functionSmallest element is at index 0 and largest is at index -1So, print(arr[0])And, print(arr[-1])Method 3:
Using inbuilt function min(arr) , it return smallest element of the array.Similarly max(arr) return the largest element of the array.There are 3 methods to find the largest and smallest number in an
unsorted integer array Python.
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Write an exponential function in the form y=ab^x that goes through points (0, 14) and (3,896).
The exponential function that goes through the points (0, 14) and (3, 896) is y = 14·3ˣ. This function has a base of 3 and a coefficient of 14.
An exponential function in the form y =abˣ is a function
where y is equal to a multiplied by b raised to the power of x.
To find the function that goes through the points (0, 14) and (3, 896),
We can write the following equation to find the base of the exponential function that goes through the points (0, 14) and (3, 896):
b³ = 896/14
We can then solve for b by taking the cube root of both sides of the equation to get:
b = 3
Now that we know the base of the function, we can use the point (0, 14) to find the value of the coefficient a.
Since the x-value of this point is 0, we can plug 0 in for x in the exponential function y=abˣ to get:
y = ab⁰ = a
Since the y-value of the point (0, 14) is 14, we can set this equal to a to solve for the value of a:
a = 14
So, the exponential function is y = 14·3ˣ
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