Answer: Open
Step-by-step explanation: the dot is only filled in when the inequallity is "greater than or equal to" or "less than or equal to"
(3x-2)(2x2+5x-1) what is not equivalent to the product
The only option that is not an equivalent of the product of both polynomials is; C: 6x³ + 11x² − 13x + 2
What kinds of equations are there?Equations can be classified as either identities or conditioned equations. For each quantity of the variables, an identity is true. Only specific values of the variables make a conditional equation legitimate. The equals sign ("="), which separates two expressions, is a symbol for an equation.
Here,
We are given the expression;
(3x - 2)(2x² + 5x - 1)
The result of expanding the polynomial is;
6x³ + 11x² − 13x + 2
Looking at the given options as seen online, the only one that is not an equivalent of the given product is;
Option C) : 6x³ + 11x² − 13x + 2 is correct
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URGENT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
identify the conic section represented by the equation (x+1)^2+(y-2)^2=8
Step-by-step explanation:
A circle with a center of (-1,2) and a radius
of
[tex]2 \sqrt{2} [/tex]
Dos lados de un triángulo miden 10 y 14m y el ángulo comprendido entre ellos mide 37º. Calcula el área de dicha región triangular.
From the given parameters, the area of the triangle is 288m².
How to calculate the area of a triangle?
A triangle is a polygon with three angles, three vertices and three sides whose sum of angles is 180⁰
Let the vertices of the triangle be labelled ABC
/AB/=16m
/BC/=45m
<ABC=127⁰
The given information formed an obtuse angled triangle.
Area of the triangle (A) = [tex]\frac{1}{2}[/tex]ACsinB
Substituting the various values in the formula we have;
A=[tex]\frac{1}{2} *16*45*sin127^{0}[/tex]
simplifying the equation to get;
A=8*45*0.7986
A=287.5088
A=288m²
Therefore, the area of the triangle to the nearest whole number is 288m²
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Find the mean and standard deviation for each uniform continuous model. (Round "Mean" answers to 1 decimal place and "Standard deviation" answers to 4 decimal places.) Mean a. U(0, 15) b. U(90, 230) c. U(4, 92)
The mean and the standard deviation of the distributions are
Mean = 7.5, Standard deviation = 4.3301Mean = 160. Standard deviation = 40.4145Mean = 48, Standard deviation = 25.4034How to determine the mean and the standard deviation?The distribution is given as:
A uniform continuous model
The mean and the standard deviation of this type of model are
Mean = (a + b)/2
Standard deviation = (b−a)/√12
Using the above formulas, we have
a. U(0, 15)
Mean = (0 + 15)/2 = 7.5
Standard deviation = (15−0)/√12 = 4.3301
b. U(90, 230)
Mean = (90 + 230)/2 = 160
Standard deviation = (230 − 90)/√12 = 40.4145
c. U(4, 92)
Mean = (4 + 92)/2 = 48
Standard deviation = (92 - 4)/√12 = 25.4034
Hence, the standard deviation of U(4, 92) is 25.4034
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Find the degrees of freedom if N is 12.
The degrees of freedom is [tex]12N[/tex]
What is degrees of freedom?
Degrees of freedom refers to the maximum number of logically independent values, which are values that have the freedom to vary, in the data sample. Degrees of freedom is calculated by subtracting one from the number of items within the data sample.
[tex]\text { Least Common Multiplier of } N, 12: 12 N[/tex]
Find Least Common Multiplier of [tex]$N, 12$[/tex]
Lowest Common Multiplier [tex](LCM)[/tex]
The LCM of [tex]$a, b$[/tex] is the smallest multiplier that is divisible by both [tex]$a$[/tex] and[tex]$b$[/tex]
Factor 12
[tex]$2^2 \cdot 3$[/tex]
Multiply each factor with the highest power:
[tex]12 \mathrm{~N}[/tex]
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Please help me on math very easy graphing! thank you!! due soon
Linear regression is a system of plotted points which shows a relationship between two given variables. The required linear equation is: y = 4x.
A graph is a plotted coordinate on a Cartesian plane which shows the relationship between two variables. A system of plotted points in relations to variables that shows a linear relationship is termed linear regression.
In a linear regression, the plotted points can be described by an equation:
y = bx + c
where: y is the dependent variable
x is the independent variable
b is the slope of the graph
c is the intercept
Therefore, considering the given question;
the slope of the graph = [tex]\frac{change in y}{change in x}[/tex]
= [tex]\frac{12 - 4}{3 - 1}[/tex]
= [tex]\frac{8}{2}[/tex]
slope of the graph = 4
While there is no intercept, thus intercept is zero.
Therefore, the required equation that shows the relationship between liters of water and number of minutes is:
y = 4x
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Select all the equations that are equivalent to y-4 =2/3(x-1)
The equivalent equations of y - 4 = 2/3(x - 1) are y - 4 = 2/3x - 2/3 and y = 2/3x + 10/3
How to determine the equivalent equation?From the question, we have the following parameters that can be used in our computation:
y - 4 = 2/3(x - 1)
We start by expanding the bracket
So, we have the following representation
y - 4 = 2/3x - 2/3
Next, we add 4 to both sides of the equation
This gives
y - 4 + 4 = 2/3x - 2/3 + 4
Evaluate the like terms
So, we have the following representation
y = 2/3x + 10/3
Hence, the equivalent equation is y = 2/3x + 10/3
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A family buys a studio apartment for $200,000 . They pay a down payment of $20,000.
a. Their down payment is what percent of the purchase price?
b. What percent of the purchase price would an $80,000 down payment be?
Answer:hope i helped A. 20% B.45%
A= 40,000/40,000/200000=.2 Or 20%b. 90,000/200000=.45
Step-by-step explanation:
Directions: construct equations for the following and evaluate for X .
The value of x is 13 and value of x in second question is 28, in the angle of line. The angle between a line's inclination and the x-axis's positive direction is known as the inclination.
How do you calculate inclination?The angle between a line's inclination and the x-positive axis's direction is known as the inclination. This angle's value ranges from 0° to 180°. It is measured counterclockwise around the positive x-axis direction. The slope of a line is the tangent of the angle of inclination if the inclination angle is known. Take the tangent of the angle produced between the line and the x-axis to get the degree of inclination.Angle B, which is the opposite of angle A and measures 100 degrees, will also be 100 degrees. This indicates that the sum of the two angles is 200 degrees.From first fig :
26° = 2x °
x = 26 / 2 = 13
Second fig :
134° = 4x + 22
x = 134 - 22 / 4 = 28
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Find how long it takes$ 2500 to double if it is invested at 6 % interest compounded semiannually. Use the formula A=P(1+r/n ) to solve the compound interest problem.
It will take approximately ___years.
It takes 11.55 years for money to double if invested at 6% compound interest.
What is compound interest?
The interest that is calculated using both the principal and the interest that has accrued during the previous period is called compound interest.It differs from simple interest in that the principal is not taken into account when determining the interest for the subsequent period with simple interest.Compound interest is commonly abbreviated C.I. in mathematics.Calculating the answer exactly: P⁰°⁰⁶ⁿ=A .
We don’t know the initial value of the principal but we do know that the accumulated value is double (twice) the principal.
P⁰°⁰⁶ⁿ = 2P
We divide both sides by P
e⁰°⁰⁶ⁿ = 2
Using natural logarithm:
0.06 n = ln(2)
n = ln(2)/0.06
n = 11.55 years
Hence, It takes 11.55 years for money to double if invested at 6% compound interest.
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Answer this! You'll get brainliest!
Answer:
See below
Step-by-step explanation:
Which of the following is the equation of the line that is perpendicular to y = - 4x - 5 and goes through the point (-2, 3)?
O y = - 4x-5
Oy = 4x + 11
O y = x + 1/
O y = -x + 1/
Answer:
[tex]y=\dfrac{1}{4}x+\dfrac{7}{2}[/tex]
Step-by-step explanation:
Given equation:
[tex]y=-4x-5[/tex]
If two lines are perpendicular to each other, their slopes are negative reciprocals.
The slope of the given equation is -4.
Therefore, the slope of the perpendicular line is ¹/₄.
[tex]\boxed{\begin{minipage}{5.8 cm}\underline{Point-slope form of a linear equation}\\\\$y-y_1=m(x-x_1)$\\\\where:\\ \phantom{ww}$\bullet$ $m$ is the slope. \\ \phantom{ww}$\bullet$ $(x_1,y_1)$ is a point on the line.\\\end{minipage}}[/tex]
Substitute the found slope and point (-2, 3) into the point-slope formula to create the equation of the perpendicular line.
[tex]\implies y-3=\dfrac{1}{4}(x-(-2))[/tex]
[tex]\implies y-3=\dfrac{1}{4}(x+2)[/tex]
[tex]\implies y-3=\dfrac{1}{4}x+\dfrac{1}{2}[/tex]
[tex]\implies y=\dfrac{1}{4}x+\dfrac{7}{2}[/tex]
Draw the image of triangle ABC under a dilation whose center is A and scale factor is 4.
The image of triangle ABC under a dilation whose center is A and scale factor is 4 is as follows.
What is dilation?
Dilation involves changing the size of a shape.
Main body:
Assume point P is the center of origin, then we have the following coordinates of ABC
A= (1,0)
B= (-2,0)
C= (0,2)
The scale factor (k) is given as:
K = 4
So, the dilation rule is represented as:
(x, y) = 4 *(x,y)
Using the above dilation rule, the following coordinates represent the image of triangle ABC
A' =(4,0)
B' =(-8,0)
C' =(0,8)
See attachment for the image of the dilation.
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The population of Greenville was 4,870 people. Six years later, the population had
grown to 5,080 people. What was the average rate of change in Greenville's
population for this six-year period?
The average rate of change in Greenville's population for this six-year period is 35 person per year
What's the math rate?
A rate is a unique ratio where the two words are expressed in several units. For instance, the price is 69 for 12 ounces if a 12-ounce can of maize costs 69. This is not a proportion of two comparable units, like shirts. Cents and ounces are the two dissimilar units in this ratio.
Given that:
Greenville population = 4,870
Greenville population after 6 years = 5,080
Difference of population = 5080 - 4870 = 210
Average rate = Population / Years = 210/6 = 35 person per year
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What is the value of x in the figure
shown?
37°
y
(3x + 1)
Answer:
x=4
Step-by-step explanation:
x=4 because when you have 3x+2=14 Subtract 2 from both sides. Then 3x+2−2=14−23x=12. Divide both sides by 3.3x3=123
The value of x in the figure having 3 angles on a line as shown in the image attached below is 28.
The angle is formed by two rays and a common point.
To calculate the value of x using the diagram attached below:
∠AOC+∠COD+∠BOD = 180° because the sum of all the angles on a line is 180°
On substituting the values from the figure,
∠AOC=3x-7
∠COD=55
∠BOD=x+20
∠AOC+∠COD+∠BOD =3x-7+55+x+20
3x-7+55+x+20=180
4x+68=180
4x=112
x=28
Thus, the value of x is 28 for the figure attached below.
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write 500;000 in expanded form in tow different ways
Answer:
500,000 can be written in expanded form in two different ways:
500,000 = 500,000
500,000 = 5 x 100,000 + 0 x 10,000 + 0 x 1,000 + 0 x 100 + 0 x 10 + 0 x 1
In both cases, the expanded form shows the value of each digit in the number. The first way simply lists the number itself, while the second way breaks down the number into its component parts and shows the value of each digit in relation to the place value it holds in the number.
Need a Detailed explanation
Answer:
The dividend in the synthetic division below is x+2:
4 | -6 -5 4 -7
- --------------
- -1 -1 1 -5
0 | -5 -4 3 -2
- --------------
2 | x+2
In synthetic division, the numbers in the top row represent the coefficients of the polynomial being divided, and the number in the bottom row represents the value of the dividend. In this case, the dividend is x+2 because it is the only number in the bottom row that is not a result of the division operation
Question 1. Let the points A(2,-1), B(-3,4), and C(-5,-7) be the vertices of triangle A B C.
(a) Let P and Q be the midpoints of the sides AB and AC respectively. Find the coordinates of P and Q. (2 marks)
(b) Show that PQ is parallel to BC. (2 marks)
a) The coordinates of the midpoints P and Q are given as follows:
P(-0.5, 1.5).Q(-1.5, -4).b) The two segments are parallel because they have the same slope.
How to calculate the midpoints?The midpoints between two points is given by the mean of the coordinates of these two points.
Hence the midpoint P of AB has the coordinates given as follows:
x - coordinate: (2 - 3)/2 = -0.5.y - coordinate: (-1 + 4)/2 = 1.5.The midpoint Q of AC has the coordinates given as follows:
x - coordinate: (2 - 5)/2 = -1.5.y - coordinate: (-1 - 7)/2 = -4.What are parallel segments?Parallel segments are segments that have the same slope, that is, the same result of the division of the change in y by the change of x of two points in the segment.
The slopes of PQ and BC are given as follows:
PQ: m = (-4 - 1.5)/(-1.5 - (-0.5)) = 5.5BC: m = (-7 - 4)/(-5 - (-3)) = 5.5.More can be learned about midpoints at https://brainly.com/question/5566419
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Kristin spends 30% of her savings on a watch and 60% of the
remainder on a dress. What percentage of her savings is left?
Kristin left with the 10% of the savings when she spends thirty percent of her savings on a watch and sixty percent on a dress.
Given that,
Kristin spends thirty percent of her savings on a watch and sixty percent on a dress.
We have to find what portion of her savings is still available.
We know that,
Kristin spends thirty percent of her savings on a watch.
Sixty percent on a dress.
The money she has a 100% in that if she spend 30% on watch she get 70% then if she spend 60% on dress she will have 10%
Therefore, Kristin left with the 10% of the savings when she spends thirty percent of her savings on a watch and sixty percent on a dress.
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Use the information to answer questions 8-10.
The time in minutes a factory needs to make a cell phone parts in a single day is modeled by th
inequality y-0.0005² ++20, for the domain 0 ≤ ≤ 1000.
8. What does the ordered pair (200, 100) represent?
Type a response
4
the longest it will take the factory to make 600 cell phone parts?
Since y<-0.0005x^2+x+20 and y represents the time in minutes needed to make x cell phone parts, the longest it will take the factory to make 600 cell phone parts will be y=-0.0005(600)^2+600+20
What is inequality?In mathematics, "inequality" refers to a relationship between two expressions or values that are not equal to one another.
A number is a solution to an inequality in x if it can be used to replace x with a statement that is true. Therefore, while 8 is not a solution for example 1, 4, it is. The collection of all solutions makes up the solution set for an inequality.
Wealth inequality, treatment and responsibility disparity, political inequality, life inequality, and membership inequality are the five systems or sorts of social inequality.
In mathematics, larger than symbol (>), less than symbol (), less than or equal to symbol (), and not equal to symbol () are the five inequality symbols.
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to create a pivottable layout, you can drag fields from the field list to an area box in the pivottable fields pane
a. true
b. false
Yes , we can drag fields from the field list to an area box in the pivot table fields pane in order to create a pivot table. Hence , true.
The four sections of the pivot table
Report FilterColumn LabelsRow LabelsValuesare located at the bottom of the PivotTable Field List window.
The fields will appear in the corresponding region of the worksheet's pivot table layout when you drag them into these locations.
Only the fields included in the PivotTable Field List can be moved in Excel 2007. If you try to drag the Promo field onto the pivot table in the screen photo below, the cursor displays an X. The drag-and-drop function is broken.
You can alter a setting in the pivot table options if you'd like to drag the pivot fields onto the worksheet layout.
To access the PivotTable Options menu, right-click a cell in the pivot table.Put a checkmark next to Classic PivotTable Layout on the Display tab.PivotDrag02To close the PivotTable Options dialogue box, click OK.To learn more about pivot table
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Can somebody help asap I need the steps as well !!!
The total addition of numbers is, 53975687481.
What is addition of numbers?
The other three fundamental arithmetic operations are subtraction, multiplication, and division. Addition is one of these four operations. The total sum or value obtained by adding two whole numbers is the result of the addition.
For the given addition first add the digits on 1st place.
7 + 7 + 7 + 7 + 2 + 2 + 2 + 1 + 8 + 7 + 1 = 51
Take 1 as it is and add 5 on the 10th place numbers.
Now add 10th place numbers,
6 + 6 + 8 + 8 + 2 + 3 + 4 + 4 + 6 + 6 + 5 = 58
Take 8 as it is and add 5 to the 100th place numbers.
Now, 9 + 9 + 9 + 1 + 2 + 4 + 4 + 0 + 7 + 4 + 5= 54
Take 4 as it is and add 5 to the 1000th place numbers.
Now, 4 + 4 + 4 + 7 + 6 + 7 + 7 + 0 + 1 + 2 + 5 = 47
Take 7 as it is and add 4 to the next addition.
Now, 9 + 6 + 7 + 4 + 8 + 3 + 1 + 2 + 4 + 4 = 48
Take 8 as it is and add 4 to the next addition.
Now, 8 + 7 + 7 + 9 + 7 + 2 + 2 + 4 = 46
Take 6 as it is and add 4 to the next addition.
Now, 7 + 6 + 6 + 2 + 6 + 1 + 3 + 4 = 35
Take 5 as it is and add 3 to the next addition.
Now, 4 + 9 + 4 + 3 + 4+ 3 = 27
Take 7 as it is and add 2 to the next addition.
Now, 7 + 4 + 2 + 4 + 2= 19
Take 9 as it is and add 1 to the next addition.
Now, 9 + 3 + 1 = 13
Take 3 as it is and add 1 to the next number.
4 + 1 = 5.
Now take the last numbers one by one from step by step.
⇒ 53975687481
Hence, the total addition of numbers is, 53975687481.
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or
Rewrite the following equation in standard form.
y = 9x + 6
Answer:
9x-y=10
Step-by-step explanation:
The formula for standard form is Ax + By =C
So, y=9x-10
-1(-9x+y=-10)
9x-y= 10
Evaluate the expression (x+3)(3x^2-4x-5) ?
3x³ + 5x² - 17x - 15
Step-by-step explanation:Here are the steps for solving your problem:1. Distribute
(x + 3)(3x² - 4x - 5)
x(3x² - 4x - 5) + 3(3x² - 4x - 5)
2. Distribute
x(3x² - 4x - 5) + 3 (3x² - 4x - 5)
3x³ - 4x² - 5x + 3 (3x² -4x - 5)
3. Distribute
3x³ - 4x² - 5x + 3 (3x² -4x - 5)
3x³ - 4x² -5x + 9x² - 12x - 15
4. Combine like terms
3x³ - 4x² -5x + 9x² - 12x - 15
3x³ + 5x² - 5x - 12x - 15
5. Combine like terms
3x³ + 5x² - 5x - 12x - 15
3x³ + 5x² - 17x - 15
Solution:
3x³ + 5x² - 17x - 15
I hope my answer helped you! If you need more information or help, comment down below and I will be sure to respond if I am online. Have a wonderful rest of your day!
A total of 627 tickets were sold for the school play. They were either adult tickets or student tickets. There were 73 fewer student tickets sold than adult tickets. How many adult tickets were sold?
Answer:
350
Step-by-step explanation:
Let "a" represent the number of adult tickets sold and "s" represent the number of student tickets sold. We can set up the following equation to represent the information given:
a + s = 627
s = a - 73
Substituting the second equation into the first equation gives us:
a + (a - 73) = 627
2a - 73 = 627
2a = 700
a = 350
Thus, there were 350 adult tickets sold.
Reflect (8,
-6) across the x-axis.
Then reflect the result across the y-axis.
What are the coordinates of the final point?l
Answer:
(-8.6)
Step-by-step explanation: If you look at a graph and pinpoint the location of (8,-6) by going up 8 and then going to the left 6. so the point of (8.-6) is in the top left box and if we are reflecting over the x-axis and the y-axis the point will be at the lower right box therefore the answer is (-8.6).
a researcher obtained a random sample of 100 smokers and a random sample of 100 non smokers. after interviewing all 200 participants in the study, the researcher compared the rate of depression among the smokers with the rate of depression among nonsmokers
observational study
Based on the study, the researcher may develop a hypothesis that smoking is associated with an increased risk of depression.
What is Hypothesis?An explanation that is put up for a phenomena or a group of facts is called a hypothesis. It is a speculative explanation that needs more testing and improvement because it is supported only by a small body of data. A hypothesis is not a tested theory, but rather a point of departure for more research. A hypothesis is examined in scientific study by testing and observationit. The purpose of hypothesis testing is to evaluate the likelihood that the suggested explanation is accurate and to spot any discrepancies or holes in the available data. The act of testing and improving hypotheses is a crucial component of the scientific method since it ensures that scientific ideas are supported by reliable data.
How to solve?
This hypothesis can then be tested through further research, such as conducting a larger study with more participants, or conducting experiments to evaluate the potential mechanisms by which smoking may affect the development of depression.
The researcher may also use statistical methods to analyze the data collected from the study, in order to determine the significance of the relationship between smoking and depression.
If the hypothesis is supported by the evidence, the researcher may conclude that smoking is a risk factor for depression, and may recommend interventions or preventative measures to reduce the risk of depression among smokers.
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HELPPPP!!! 30 POINTSSSSSS!!!!!!
Find the line of best fit for the set of data:
x y
-2 2.9
-3.5 2
1.4 4.8
-4.2 1.5
0 4
2.8 6
-1.5 3.5
A. y = .613x + 4.142
B. y = -.613x - 4.142
C. y = -.613x + 4.142
D. y = .613x - 4.142
Answer:
[tex]\boxed{\tt A. \;y = .613x + 4.142}[/tex]
Step-by-step explanation:
Equation: (y-y_1)=y_2-y_1/x_2-x_1 (x-x_1)
Here,
[tex]\tt (x_1,y_1):(-2,2.9)[/tex]
[tex]\tt (x_2,y_2): (-3.5,2)[/tex]
[tex]\tt y-2.9=\cfrac{(2-2.9)}{(-3-5-(-2))} (x-(-2))[/tex]
[tex]\tt y-2.9=\cfrac{-0.9}{-1.5} (x+2)[/tex]
[tex]\tt y-2.9=0.6(x+2)[/tex]
[tex]\tt y-2.9=0.6x+1.2[/tex]
[tex]\tt y=.613x+4.142[/tex]
___________________
Hope this helps you!
Have a nice day!
Compare the triangles and determine whether they can be proven congruent, if possible by SSS, SAS, ASA, AAS, HL, or N/A (not congruent or not enough information). Select your answer.... Take your time this is a grade!O N/AO SASO SSSO AASO HL
The triangles can be proven congruent using the ASA congruence postulate.
∠ABK is congruent to ∠CBK.BK is congruent to BK (common side )∠AKB is congruent to ∠CKB.Thus, we can say that triangles ABK and CBK are congruent.
Triangles are congruent, according to the Angle Side Angle Postulate (ASA), if any two angles and their included side are equivalent in the triangle. The side between two angles is considered an included side.
Additionally, you can confirm that your two triangles are congruent by employing the Side Angle Side Postulate (SAS). In this case, we choose a side and its equivalent side on two triangles rather than two angles.
Triangles are said to be congruent according to the SAS Postulate if any pair of corresponding sides and their included angle are also congruent.
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3. What is the best description of the function in Item 2?
Answer:
Could you give a little more context. I can help.