what is 2(x + 4) equivalent to
Answers
Answer:
2 x x = 2x
2 x 4 = 4
so 2x + 8 is the answer.
To solve this equation we must expand its terms so that we can then multiply and add.
¿What are the equations?Equations are those mathematical equalities divided between two expressions which are called members and separated by their equal sign, in which known elements and unknown or unknown data appear, related by mathematical operations.
We solve the problem:2 (x + 4)2x + 2 × 42x + 8So, our result of the equation is 2x + 8
¡Hope this helped!
Related Questions
PLEASE HELP ME. I NEED HELPPPP I WILL GIVE BRAINIEST
Answers
The area of the figure is 50.24 units squared.
How to find the area of a figure?The figure above is a quarter of a circle. A circle divided into 4 equal parts is a quarter of a circle. Therefore, the area of the figure can be represented as follows:
Since, the figure is a quarter of a circle, the product of the area of a circle and 1 / 4 is the area of the figure.
Hence,
area of the figure = πr² / 4
where
r = radiusTherefore,
r = 8
area of the figure = 3.14 × 8² ÷ 4
area of the figure = 3.14 × 64 × 1 / 4
area of the figure = 200.96 / 4
area of the figure = 50.24 units squared
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What Is 4/9 - 4/10 i need A 100% Correct answer
Answers
Answer:
2/45
Step-by-step explanation:
Given problem,
→ (4/9) - (4/10)
Let's solve the problem,
→ (4/9) - (4/10)
→ (40/90) - (36/90)
→ (40 - 36)/90
→ 4/90
→ 2/45
Hence, answer is 2/45.
A new club sent out 250 coupons to boost sales for next year's memberships. They provided 4 times as many to potential members than to existing members. How many coupons did they send to existing members?
A.
4
B.
50
C.
5
D.
54
Answers
Answer:
B. 50
Step-by-step explanation:
Let x be the number of coupons sent to existing members.
The number of coupons sent to potential members is 4 times the number of coupons sent to existing members, or 4x.
The total number of coupons sent is the sum of the number of coupons sent to existing members and the number of coupons sent to potential members, or x + 4x = 5x.
The club sent out 250 coupons, so 5x = 250.
Dividing both sides of the equation by 5, you get x = 250 / 5 = 50.
Therefore, the club sent 50 coupons to existing members.
What are the solutions to this quadratic equation? Select all that apply. x2 – 3x – 18 = 0 A. x = 6 B. x = –3 C. x = –2 D. x = 9 E. x = –18 F. x = 3
Answers
The solutions of the quadratic equation x² - 3x - 18 = 0 are
x = -3 and x = 6
What is Factorization method?
Factorization of a quadratic equation means writing the given expression as a product of its factors. These factors can be numbers, variables, or an algebraic expression.
According to the given question:
The given quadratic equation is x² - 3x - 18
Applying factorization by splitting middle term method
x² - 3x - 18 = 0
x² - 6x + 3x - 18 = 0
Grouping the terms to get
x(x - 6) + 3(x - 6) = 0
(x + 3)(x - 6) = 0
Hence the solutions are x + 3 = 0 and x - 6 = 0
The solutions of the quadratic equation x² - 3x - 18 = 0 are
x = -3 and x = 6
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Two student clubs were selling t-shirts and school notebooks to raise money for an upcoming school event. In the first few minutes, club A sold 2 t-shirts and 3 notebooks, and made $40. Club B sold 1 t-shirt and 1 notebook, for a total of $16.
A matrix with 2 rows and 2 columns, where row 1 is 2 and 3 and row 2 is 1 and 1, is multiplied by matrix with 2 rows and 1 column, where row 1 is x and row 2 is y, equals a matrix with 2 rows and 1 column, where row 1 is 40 and row 2 is 16.
Use matrices to solve the equation and determine how many of each item were sold. Show or explain all necessary steps.
Answers
The value of the matrix multiplication A x B is matrix C
The value of B is [tex]B = \begin{pmatrix}x\\ y\end{pmatrix} = \begin{pmatrix}8\\ 8\end{pmatrix}[/tex]
What is multiplication of matrices?
The product of two matrices A and B is defined if the number of columns of A is equal to the number of rows of B. The first matrix must have the same number of columns as the second matrix has rows. The number of rows of the resulting matrix equals the number of rows of the first matrix, and the number of columns of the resulting matrix equals the number of columns of the second matrix
Given data ,
The number of shirts sold by club A = 2
The number of notebooks sold by club A = 3
The number of shirts sold by club B = 1
The number of notebooks sold by club B = 1
Now , the value of matrix A is
[tex]A = \begin{pmatrix}2&3\\ 1&1\end{pmatrix}[/tex]
The value of matrix B is
[tex]B = \begin{pmatrix}x\\ y\end{pmatrix}[/tex]
The product of matrix A and B will be C , and the value of matrix C is
[tex]C = \begin{pmatrix}40\\ 16\end{pmatrix}[/tex]
So , the equation is
A x B = C
Substituting the values in the equation , we get
[tex]\begin{pmatrix}2&3\\ 1&1\end{pmatrix}\begin{pmatrix}x\\ y\end{pmatrix}=\begin{pmatrix}40\\ 16\end{pmatrix}[/tex]
On simplifying the equation , we get
[tex]\begin{pmatrix}2x+3y\\ x+y\end{pmatrix}=\begin{pmatrix}40\\ 16\end{pmatrix}[/tex]
So , the equations are
2x + 3y = 40 be equation (1)
x + y = 16 be equation (2)
Multiply equation (2) with 2 , we get
2x + 2y = 32 be equation (3)
Now , subtracting equation (3) from equation (1) , we get
y = 8
Substituting the value for y in equation (2) , we get
x + 8 = 16
Subtracting 8 on both sides of the equation , we get
x = 8
Therefore , the value of x is 8 and y is 8
Hence , the value of matrix B is [tex]B = \begin{pmatrix}x\\ y\end{pmatrix} = \begin{pmatrix}8\\ 8\end{pmatrix}[/tex]
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pls help super easyy due tomm!!!
Answers
If a < b, then multiplying both sides of the inequality by -4 will reverse the direction of the inequality. The resulting inequality will be:
-4a > -4b
This is because multiplying a negative number by a negative number results in a positive number, and multiplying a positive number by a negative number results in a negative number. Therefore, the inequality must be reversed when both sides are multiplied by a negative number.
Need a two column proof for this problem, can't use any parallelogram or quadrilateral theorems, only triangle related and equidistance, altitude, median, and perpendicular bisector related theorems. Thank you!
Answers
Therefore , We have proved AE ≅ CF in the given quadrilateral .
What is congruence ?Two figures or objects are said to be congruent in geometry if they are the same size and shape, or if one is the mirror image of the other.
Here,
Statement
1)AB≅CD , AB║CD ,BF⊥AC and
DE⊥AC
2)ABCD is a parallelogram
3) AD≅BE , AD║BE
4)ΔDAE≅ ΔBCF
5)ΔDAE≅ ΔBCF are right Δ's
6) ΔDEA≅ ΔBFC
7) ΔADE≅ ΔCBF
8)AE ≅ CF
Reasoning
1)Given
2)if a quadrilateral has 1 pair of opposite side both side ≅, ║, then it is a parallelogram
3)In a parallelogram opposite side are ≅, ║
4)Alternate interior angles Δ's are congruent.
5)⊥ segments forms right Δ's.
6)right Δ's. are ≅.
7)AAS congruency theorem
8)Cpetc
Therefore , We have proved AE ≅ CF in the given quadrilateral .
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What is the best approximation for the relative minimum of the polynomial
function graphed below?
OA. (1.5,-1.8)
B. (0,-3)
C. (-3,0)
OD. (-1.5,-1.8)
G
Answers
(0,-3) is the best approximation for the relative minimum of the polynomial function graphed below.
What is x and y-axis?A two-dimensional number line, like two perpendicular axes, can be used as a coordinate system. This coordinate system is typical: The x-axis and y-axis are the names of the horizontal and vertical axes, respectively. The origin is the point at which all lines in a coordinate system intersect.
The coordinates that are shown on the x and y axes give rise to their respective names. The vertical y-axis is aligned with the horizontal x-axis. They are referred to as axes because they are perpendicular to one another.
From the graph it is shown that,
In the x axis the value is between 0 and 1 , and the y-axis is in between 0 to -3 then the answer is: (0,-3)
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The complete question is as follows:
I need a step-by-step process on how to do:
-3x+y=9
y=x-7
I would think this is a substitution problem.
Answers
Answer:
x = -8
y = -15
Step-by-step explanation:
-3x + y = 9
y = x - 7
-3x + x - 7 = 9
-2x - 7 = 9
-2x = 16
2x = -16
x = -8
y = -8 - 7
y = -15
Write this function in standard form:
f(x) = (2x + 3)(x^2 - 5x + 1)
Answers
Answer:
Hi!
The answer would be:
f(x)= 2x^3 - 7x^2 - 13x + 3
I hope this helped you! :)
how do i do 10 and 12
Answers
In the given Isosceles trapezoid, the value of x and y is 12 and 5 respectively.
What is Isosceles trapezoid?An isosceles trapezoid, or isosceles trapezium in British English, is a convex quadrilateral in Euclidean geometry that has a line of symmetry cutting through one pair of opposite sides.
It is an uncommon instance of a trapezoid.
Alternately, it can be described as a trapezoid with equal amounts of both the base angles and the legs.
Note that the second requirement, or the fact that it lacks a line of symmetry, prevents a non-rectangular parallelogram from being an isosceles trapezoid.
Two opposite sides (the bases) of each isosceles trapezoid are parallel, while the remaining two sides (the legs) are each the same length (properties shared with the parallelogram).
So, solve for x and y:
For x:
4x - 27 = x + 9
3x = 36
x = 36/3
x = 12
For y:
3y + 19 = 11y - 21
8y = 19 + 21
8y = 40
y = 40/8
y = 5
Therefore, in the given Isosceles trapezoid, the value of x and y is 12 and 5 respectively.
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Match the linear equation to the correct graph.
Answers
Answer: y= 1/2x + 2
Step-by-step explanation:
The linear equation is y= mx + b
The y-intercept is located at (0,2), so b equal to 2
Let's pick two points ( 0,2) ( 2, 1)
To find the slope, we need to find the rise over run.
Rise decrease by 1, and run increase by 2, so the slope is 1/2
So the equation is y= 1/2x +2
Juliet needs to rewrite 3 (x + 2) = 6 y in slope-intercept form so she can easily graph it. Which step would be correct to start the process?
She could combine the x and 2 to get 3 (2 x) = 6 y.
She could divide both sides by 3 to get x + 2 = 2 y.
She could distribute the 3 to get 3 x + 2 = 6 y.
She could subtract the 6y to get Negative 6 y = 3 (x + 2).
Answers
The first step to start the is dividing both sides by 3, so the correct option is the second one.
The linear equation in slope-intercept form is:
y = (1/2)*x + 1
How to write the line in the slope-intercept form?To do that, we need o isolate the variable y in one of the sides of the linear equation:
3*(x + 2) = 6y
We can divide both sides by 3 to get:
x + 2 = (6/3)*y
x + 2 = 2y
Now, we can divide both sides by 2, so we will get:
(x + 2)/2 = y
y = (x + 2)/2
y = (1/2)*x + 1
The equation in the slope-intercept form is:
y = (1/2)*x + 1
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Somebody solve This maze?
Answers
Answer:
check image
Step-by-step explanation:
do the cross method for each one for example for the first one do 11x20 which equals 220 then divide that by 22 so 220/22 that gives you 10
advantages and disadvantages of discussion forum
Answers
The main advantage of the discussion forum is that it allows the exchange of information, the disadvantage is that it requires a very good organization.
¿What are the advantages of the discussion forum?The main advantages of this forum are:
Many thoughts and information can be exchanged.It facilitates and allows the participation of different people in an appropriate and simple way.¿What are the disadvantages of the discussion forum?The main disadvantages are:
It must be organized correctly, otherwise it loses its essence.Not all participants usually have the ability to express themselves correctly.what does the univariate t test tell you that the bivariate correlation test alone does not? what does the bivariate test tell you that the univariate test does not tell you?
Answers
In univariate data, only one variable is assessed for each person. Two variables are measured for each person in bivariate data.
The definition of univariable data is "one variable," and it is generally understood to be one sort of data. It is one of the straightforward methods for data analysis. The data in univariable data only include one variable.
The cat's weight, for instance, is 10, 15, 25, 27, 30, 35, and 40.
The variable is hence "Cat weight."
The definition of bivariate data is "Two Variable," and it essentially consists of two different forms of data. It is a straightforward type of statistical analysis.
Only one variable is analysed at a time in univariate statistics. Two variables are compared in bivariate statistics. Multiple variables are compared using multivariate statistics.
In a bivariate analysis, the correlations between the two variables are measured. When there are more than two variables in the data set, a more complicated statistical analysis technique called multivariate analysis is utilized.
Therefore,
In univariate data, only one variable is assessed for each person. Two variables are measured for each person in bivariate data.
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Which equation represents the vertical asymptote of the graph?
x= -8
y= -8
x= 0
y= 0
Answers
Answer: x= -8
Step-by-step explanation:
A vertical asymptote is a line cut in the middle of both graphs!
It can't be x= 0 or y= 0 because it is not the middle of both graphs!
It can't be y= -8 because it is not cut in the middle.
So x=-8 is the right answer!
Which of the following is a set of all real numbers x, such that x + 1 > x + 8?
A. The set containing zero
B. The set containing all real numbers
C. The set containing all positive numbers
D. The set containing all negative numbers
E. The empty set
Answers
Answer:
EE.
Step-by-step explanation:
x+1>x+8. 1+8. ∅
-6(10x-10) - 5 how do I solve this
Answers
Answer: x= 11/12
Step-by-step explanation:
-6(10x-10) - 5
-60x +60 - 5
-60x + 55
Subtract 55 on both sides
-60x = -55
x= 55/60
x= 11/12
-10m3+25m2 show how you got it please
Answers
Answer is 3(4x2-3x)
Find the total cost to the nearest cent.
$ 22 haircut
tip: 20 %
Answers
Tip = 22 * 20% = $4.40
Then, we can add the cost of the tip to the cost of the haircut to find the total cost:
Total cost = 22 + 4.40 = $26.40
Therefore, the total cost to the nearest cent is $26.40.
Solve for x.
2(x - 6) - 3x ≥ - 3
Simplify your answer
Answers
2x - 12 - 3x >= -3
2x - 3x >= -3 + 12
- x >= 9
x/-1 >= 9/-1
X >= 9
First, we'll start by combining like terms on the left side of the inequality:
2(x - 6) - 3x ≥ -3
2x - 12 - 3x ≥ -3
Combining the two x terms gives us:
-x - 12 ≥ -3
Next, we'll add 12 to both sides to isolate the x term:
-x - 12 + 12 ≥ -3 + 12
-x ≥ 9
Finally, we'll divide both sides by -1 to solve for x:
(-x)/(-1) ≥ 9/(-1)
x ≤ -9
So the solution to the inequality is x ≤ -9.
On cold days, nick likes to make hot chocolate. He uses 6 table spoons of coco and 2 table spoons of sugar
Guys please help me on this question its like very hard and please show work
Answers
Answer:
For every 3 tablespoons of cocoa, Nate uses 1 tablespoon of sugar.
Step-by-step explanation:
Since the sugar is halved, the cocoa should be halved as well. 6/2 is 3.
What is the remainder when the product 1998 × 1999 × 2000 is divided by 7?
Answers
Answer:
As a fraction: 7988004000/7
As a decimal: 1141143428.571429
Step-by-step explanation:
Multiply (1998)(1999)=3994002
Multiply (3994002)(2000)=7988004000
As a fraction it will be 7988004000/7
Turn it into a decimal!
Just divide 7988004000 by 7 or 7988004000/7
This should be: 1141143428.571429
Some points of a function are plotted as shown. Select all the points that could also be a part of this function. Choose all that apply.
Answers
Point (6,2) is part of the function.
What are functions?
In mathematics, a function is a procedure that uniquely connects the value of one variable to the value of another variable (or variables).
Here, we have the plotted points as:
(0,3), (2,7), (3,1), (5,4), (7,6)
Assuming from the above, we get a sinusoid graph as below.
Now if we try to plot the provided points, we see that only (6,2) satisfies the curve.
Hence, (6,2) is a point that is part of the function.
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answer this please i need help
Answers
Answer:
it is 180
Step-by-step explanation:
Use compatible numbers to estimate the correct quotient.
Answers
The estimate of the quotient expression using compatible numbers is 100
How to estimate the number of quotient?From the question, we have the following parameters that can be used in our computation:
7 | 497
This quotient expression from the question can be expressed as
497 ÷ 7
From the question, we are to make use of compatible numbers
This means that we have the following approximation
497 = 500
7 = 5
Next, we estimate the quotient using approximated values
So, we have
497 ÷ 7 = 500 ÷ 5
Evaluate the quotient
497 ÷ 7 = 100
Hence, the estimate is 100
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The slope of the line with equation y=-3x - 2 is multiplied by 2.
What is the x-intercept of the resulting line?
Answers
Step-by-step explanation:
-a/b is slope so here .on comapring slope is 3
after multiply by 2 ans. is 6
x Intercept is where it cut the x-axis so equation of line will have slope 6
X interceptor remain the same
Lisa paid $46.58 for 16.7 gallons of gasoline. What was the cost per gallon, rounded to the nearest hundredth?
Answers
Answer: 2.73 is the answer
Step-by-step explanation:
Step by Step:
$46.58
———— = 2.879… —> $2.79
16.7
$2.79 = 1 gallon
Given
�
∥
�
m∥n, find the value of x.
m
n
t
113°
x°
Answers
The value of X is 67°.
What makes lines parallel?If two lines never cross and always lie at the same distance apart, they are said to be parallel. Both lines need to be parallel (in the same plane). The symbol for parallel lines is represented by two tiny parallel lines when written in geometric shorthand, as this ║. For instance, we write JI║NX to indicate that lines JI and NX are parallel. A transversal line is one that runs parallel to another line. The transversal forms eight angles when cutting across parallel lines. Eight parallel lined angles can be obtained by cutting a transversal across any existing pair of parallel lines by drawing the transversal with a straightedge.These eight angles in parallel lines are:Corresponding anglesAlternate interior angleAlternate exterior anglesSupplementary anglesHence, The value of X is 67°.
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The complete question is: