Step-by-step explanation:
the sum of all angles around a single point on one side of a line must be 180°.
because that line can be seen as the extension of the diameter of a circle, and the point would be the center of that circle. so, one side of the line represents a half-circle, which stands for 180°.
so we have
180 = 40 + 40 + (2x + 30) = 80 + 2x + 30 = 110 + 2x
70 = 2x
x = 35
What are the 9 formulas of algebra?
There are both numbers and letters in algebra. Numbers are constant, i.e. e. The unknown quantities in the algebraic formula are represented by letters or alphabets. The 9 formulas of algebra are explained further.
Define algebra and its 9 formulas?Algebra is a mathematical tool that we use to calculate distances, volumes, and perimeters of spaces as well as to calculate costs, rent things out, and understand time relationships.
Algebraic equations come in five main categories. We can tell them apart by the variables' positions, the types of operators and functions being used, and the behavior of the graphs. Each equation has a different probable input and generates a different result based on analysis.The 9 formulas of algebra are explained as:
a² – b² = (a-b)(a+b)(a+b)² = a² + 2ab + b²(a-b)² = a² – 2ab + b²a² + b² = (a-b)² +2ab.(a+b+c)² = a²+b²+c²+2ab+2ac+2bc.(a-b-c)² = a²+b²+c²-2ab-2ac+2bc.a³-b³ = (a-b) (a² + ab + b²)a³+b³ = (a+b) (a² – ab + b²)(aⁿ)(aˣ) = aⁿ⁺ˣ (ab)ⁿ = aⁿˣTo know more about the algebra, here
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the sum of two numbers is 49 and the difference between the numbers is 1
The values of x and y are 24 and 25 when the sum of two numbers is 49 and the difference between the numbers is 1
What is Linear equation ?
linear equation can be defined as the equation in which the highest degree is one.
Given ,
the sum of two numbers is 49 and
the difference between the numbers is 1
Let the two numbers be x and y .
so x+y = 49
x-y = 1
x = 1+y
from two equations ,
Substitute x = 1+y in x+y = 49
we get,
1+y+y = 49
2y = 49 - 1
2y = 48
y = 24
substitute y =24 in x=1+y ,
we get
x = 24+1
x = 25
Hence , the values of x and y are 24 and 25 .
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Square MNOP has a diagonal of 12 inches. Find the length of each side of the square.
Answer:
12
Step-by-step explanation:
squares have equal sides
In mixed fraction please
Question is the picture.
Answer:
in decimal it is 36.72, in fraction it is 918/25
Step-by-step explanation:
Based on this graph, what is the BEST estimate of the number of toy cars Drew
must sell to break even?
A. 8000
B. 10,000
c. 20,000
D. 32,000
Identify the slope, and y -intercepts and graph the linear equation.
4. y=1-3
5. 5x +3y = 15
6. y = 3
The slope, and the y-intercepts are
Slope = 0, y-intercept = -2Slope = -5/3, y-intercept = 5Slope = 0, y-intercept = 3How to determine the slope and the intercept of the equationsA linear equation can be represented as
y = mx + c
Where
slope = m
y-intercept = c
Using the above as a guide, we have the following:
Slope of (4) = 0 and the y-intercept is -2Slope of (5) = -5/4 and the y-intercept is 5Slope of (6) = 0 and the y-intercept is 3See attachment for the graph
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King spoke 664 words in his Is minute long I Have a Dream" speech
Originally, he planned to only speak for 4 minutes and 30 seconds.
How many words were in his original speech?
Answer: 1,667
Step-by-step explanation:
Write a system of equations for the coefficients of a polynomial of degree 2 that passes through (1, - 2), (- 2, 7) and (- 5, - 2) Solve the system.
The system of equations is:
-2 = a + b + c
7 = 4a - 2b +c
-2 = 25a + 5b + c
The polynomial is:
y = (1/3)*x^2 - 6x - 1/3
How to write and solve the system of equations?The general polynomial of degree 2 can be written as:
y = a*x^2 + b*x +c
If we use the fact that it passes through the 3 given points, then we can write the 3 equations:
-2 = a*1^2+ b*1 + c
7 = a*(-2)^2 + b*-2 + c
-2 = a*5^2 + b*5 + c
We can simplify these to get the system of equations:
-2 = a + b + c
7 = 4a - 2b +c
-2 = 25a + 5b + c
First, isolate c on the first equation to get:
c = -2 - a- b
Replace it on the other two:
7 = 4a - 2b + (-2 - a - b)
-2 = 25a + 5b + (-2 - a - b)
9 = 3a - 3b
0 = 24a + 4b
Using the second equation we can rewrite:
-24a = 4b
-24a/4 = b
-6a = b
Ande replace that in the other equation:
9 = 3a - 3*(-6a)
9 = 3a + 18a
9/21 = a
1/3 = a
And the value of b is:
-6*(1/3) = b
-2 = b
And the value of c is:
c = -2 - (-2) - 1/3
c = -1/3
The polynomial is:
y = (1/3)*x^2 - 6x - 1/3
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please helpppppppppp
Need this by tonightttt
Hellllpppppp
The line passing through x- intercept 1 and y- intercept 1 so equation of line is x+y = 1
What is Intercept Form of Equation of a Line?Depending on the various parameters, there are several ways to express the equation of a given line in mathematics. Point-slope form, slope-intercept form, two-point form, intercept form, etc. are among the ways that are most frequently observed.
By The Intercept A line's equation has the form x/a + y/b = 1. The x-intercept in this case is "a," and the y-intercept is "b."
The distance from the origin and on the x-axis where this line crosses the x-axis is represented by the value of "a," and the distance from the origin and on the y-axis where this line crosses the y-axis is represented by the value of "b."
We are able to determine the quadrants through which this line travels by using the signs of these intercepts.
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x>2 y>0 x+2y<8
What is the Maximum and minimum value of p=x+3y for the feasible region
The maximum value of p = x + 3y for the feasible region is 11.
The minimum value of p = x + 3y for the feasible region is 2.
What is inequality?It shows a relationship between two numbers or two expressions.
There are commonly used four inequalities:
Less than = <
Greater than = >
Less than and equal = ≤
Greater than and equal = ≥
We have,
x > 2 ____(1)
y > 0 ____(2)
x + 2y < 8 _____(3)
When all the inequalities (1), (2), and (3) are graphed we get the graph given below.
The points on the graph given below (2, 0), (8, 0), and (2, 3) are in the feasible region.
Objective function is p = x + 3y
Substitute the points on p = x + 3y.
So,
For (2, 0),
p = 2 + 3 x 0 = 2 + 0 = 2
For (8, 0),
p = 8 + 3 x 0 = 8 + 0 = 8
For (2, 3),
p = 2 + 3 x 3 = 2 + 9 = 11
We see that,
The maximum value is 11 at (2, 3).
The minimum value is 2 at (2, 0).
Thus,
The maximum value is 11.
The minimum value is 2.
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Your teacher tells you that there are 59,811 different species of vertebrates on Earth and 8240 of these are reptiles. What percentage (%) of vertebrate species are reptiles? Round your answer to the nearest whole number.
The percentage of vertebrates that are reptiles is approximately 13.8%
What is PercentagePercentage is a way of expressing a number as a fraction of 100. It is commonly used to express rates, ratios, and proportions. A percentage is represented by the symbol "%" and is calculated by multiplying a number by 100 and dividing the result by the total number of items being considered.
In this problem, we need to determine the percentage of vertebrate that are reptiles.
This can be represented mathematically as;
Percentage of reptiles = [number of reptiles / total number of vertebrates] * 100
Percentage = [8240 / 59811] * 100
Percentage = 13.8%
The percentage of reptiles is 13.8%
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At a certain high school, the distribution of backpack weight is approximately normal with mean 19. 7 pounds and standard deviation 3. 1 pounds. A random sample of 5 backpacks will be selected, and the weight, in pounds, of each backpack will be recorded.
For all samples of 5, there is a 0.05 probability that the sample mean would be higher than 22 pounds.
The selection of bags weights, on average, 19.7 pounds.
The standard variation is 3.1 pounds.
Both the normal probability density function and the sampling distribution theorem were used.
When dealing with issues involving samples of data that are regularly distributed, the z-score algorithm is applied.
The z-score of a measure X is calculated as follows:
z = (x - μ) ÷ σ
The number of standard deviations is calculated using the Z-score. The average is the metric employed.
We examine the p-value linked with the Z-score in the z-score table after computing the Z-score.
The chance that the measure's value is less than X, or what proportion of X, is represented by this p-value.
We may calculate the likelihood that the metric exceeds X by subtracting 1.
The Central Limitation Theorem also holds for skewed variables when n is at least 30.
The sample mean will remain constant regardless of sample size.
The standard error, though, will alter.
The probability that the sample means will be higher than 22 is shown by P(a > 22).
For all samples of size 5, the possibility that they will weigh more than 22 pounds is about 0.05.
Your question is incomplete but most probably your full question was
at a certain high school, the distribution of backpack weight is approximately normal with a mean of 19.7 pounds and a standard deviation of 3.1 pounds. a random sample of 5 backpacks will be selected, and the weight, in pounds, of each backpack will be recorded. what is the probability that my next five samples will average 22 pounds?
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!PLEASE HELP! 35 POINTS!
How does the total amount of work used to move a storage box 10 meters across the floor with a force of 20-N compare to moving the same storage box 8 meters with the same amount of force?
How much work is required to move each box? How do those numbers compare with one another? Which requires more work?
Answer: By 40J
Step-by-step explanation:
20*10 = 200J in Newton meter (nm)20*8 = 160J in Newton meter (nm)Storage Box 1 (20*10J) needs more work as compared to Storage Box 2 (20*8J)And 200-160=40 or 20*10-20*810-8=2, Hence the difference is (20*2) or 40pls mark it as brainliest
Write an equation of a line that passes through (-4,2) and is perpendicular to the line y= 2/7x - 8
A line that is perpendicular to another line has a slope that is the negative reciprocal of the original line. The slope of the line y = 2/7x - 8 is 2/7. To find the slope of the line that is perpendicular to it, we take the negative reciprocal of 2/7 which is -7/2.
We know that the line we're trying to find passes through the point (-4, 2), so we can use this point and the slope to write the equation of the line in point-slope form:
y - y1 = m (x - x1)
where (x1, y1) is the point the line passes through, m is the slope, and y and x are the coordinates of any point on the line.
So the equation of the line that passes through (-4,2) and is perpendicular to the line y= 2/7x - 8 is:
y - 2 = -7/2 (x + 4)
Simplifying this, we get
y = -7/2 x - 8
Therefore the equation of the line that passes through (-4,2) and is perpendicular to the line y= 2/7x - 8 is y = -7/2 x - 8
help with this pls i am du,mb
the vector sum of two or more other vectors is called the
Answer: resultant
Step-by-step explanation:
What is the location of point G, which partitions the directed line segment from D to F into a 5:4 ratio
Point G is two, which divides the directed line segment from D to F into a 5:4 ratio at that place.
What are straight-line equations?The general equation for every straight line is y = mx + c, where m is the gradient (or degree of steepness) of the line and c is the y-intercept (the point in which the line crosses the y-axis).
The variables x and y are related to coordinates on the line in the linear equation y = mx + c.
The formula y = mx + c yields a result for y when we enter a value for x.
As y depends on the value of x, it follows that x is an independent variable and y is a dependent variable.
According to our question-
From negative five to positive ten is a number line.
Points D and F are at -2 and +7, respectively.
The distance between point D and F is,
=9
If Point G divides the directed line segment from D to F into a 5: 4 ratio, then,
=2
Hence, The directed line segment from D to F is divided into a 5:4 ratio at point G by the number 2.
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can yall answer this i cant figure it out.
Answer:
The result can be shown in multiple forms.
Exact Form:
− 3/2
Decimal Form:
− 1.5
Mixed Number Form:
−1 1/2
Step-by-step explanation:
Answer:
[tex]\displaystyle -\frac{3}{2}[/tex]
Step-by-step explanation:
[tex]\displaystyle \biggr(\frac{7}{4}-\frac{8}{3}\biggr)-\biggr|\frac{1}{6}-\frac{3}{4}\biggr|\\ \\=\biggr(\frac{7*3}{4*3}-\frac{8*4}{3*4}\biggr)-\biggr|\frac{1*2}{6*2}-\frac{3*3}{4*3}\biggr|\\ \\=\biggr(\frac{21}{12}-\frac{32}{12}\biggr)-\biggr|\frac{2}{12}-\frac{9}{12}\biggr|\\ \\=-\frac{11}{12}-\biggr|-\frac{7}{12}\biggr|\\\\=-\frac{11}{12}-\frac{7}{12}\\\\=-\frac{18}{12}\\ \\=-\frac{3}{2}[/tex]
50 POINTS & BRAINLIEST !!!!
The table shown below, which has some values for functions f(x) and g(x). What is/are the solution(s) when f(x) = g(x)? Explain your answer(s).
a. Solution(s): _____
b. Explanation (how did you know they were the answer): ______
The intersection of x = -1 and x = 1 is where f(x) = g(x) has its solution.
What is meant by intersection?The symbol "∩" is used to represent a set's intersection. The set containing all the items that are shared by both sets A and B, as stated above, is the intersection of two sets A and B. The intersection of A and B is denoted symbolically by A ∩ B. The formula is stated as P(A∩B) = P(A) P(B), where P(A) denotes the probability of event "A" and P(B) is the probability of occurrence "B". The symbol ∩ stands for the intersection operation. The set A ∩ B is referred to as "the intersection of A and B" or "the intersection of A and B," and it is made up of all the components that belong to both A and B.Therefore,
The intersection of the two lines, or the point at which they are equal, is the answer to the equation f(x) = g(x). According to the table provided, only the values 9 and 12 are shared by both f(x) and g(x).
Consequently, the intersection of x = -1 and x = 1 is where f(x) = g(x) has its solution.
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The cost in dollars to produce x shovels in a factory is given by the function C(x) = 26x +400. The number of shovels that can be produced in h hours is
given by the function N(h) = 20h.
7. Find the rule for C(N(h)).
8. Find the cost when h=6 hours.
The amount of shovels that can be produced in h hours is 960 shovels
What is an equation example?The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign.
What is the full meaning of the equation?A mathematical statement known as an equation is made up of two expressions joined together by the equal sign. A formula would be 3x - 5 = 16, for instance. When this equation is solved, we discover that the value of the variable x is 7.
In the given equation,
The number of shovels produced are
C(x)=26*20+400
=520+400
=920 shovels
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6 in.
3 in.
11/20
Double Jeop
5 in.
96 in²
Eraser
12
180 in²
1177 0779
What is the surface area? (6 in by 3 in by 5 in prism)
126 in²
90 in²
The area occupying a three-dimensional shape's exterior is known as its surface area.
What is a surface area?The quantity of space enclosing the exterior of a three-dimensional shape is its surface area. The surface area of a three-dimensional shape refers to how much open space it occupies outside of itself.
The entire area of all the faces makes up the surface area of a three-dimensional form. We calculate the area of each face and put them together to determine the shape's surface area.
The total area that all of a 3D object's faces cover is the surface area.
Add up every region. SA=2B+2πrh. Find the base's area, multiply it by 2, and then add those areas to the rectangle's areas, which are equal to the rectangle's diameter times its height.
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How to convert 2D image to 3D in image processing?
To convert 2D image to 3D in image processing, first Pre-Processing, Feature Extraction, Modeling, Rendering, and then Post-Processing.
The process of converting a 2D image to a 3D is called 3D reconstruction. It is a challenging task as it requires a lot of knowledge and skill. The steps to convert a 2D image to 3D are:
1. Pre-Processing: This step involves noise removal, image enhancement, and image segmentation.
2. Feature Extraction: This step involves extracting important features from the image such as lines, circles, and other shapes.
3. Modeling: This step involves creating a 3D model using the extracted features.
4. Rendering: This step involves adding textures, colors, and shadows to the 3D model to make it look realistic.
5. Post-Processing: This step involves editing the 3D model to make it look better. It includes smoothing, blending, and other post-processing techniques.
The result of these steps is a 3D image that looks realistic and has the same features as the original 2D image.
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Sara i making 3 batche of chocolate chip cookie and 3 batche of oatmeal cookie. Each batch of chocolate chip cookie ue 2 1/4 cup of flour. She will ue 12 3/4 cup of flour for all 6 batche. Determine how many cup of flour are needed for each batch of oatmeal cookie
The total amount of flour used for the oatmeal cookies is 6 cups and Each batch of oatmeal cookies uses 2 cups of flour.
We can start by using the information given to set up an equation for the total amount of flour used for the chocolate chip cookies.
We know that each batch of chocolate chip cookies uses 2 1/4 cups of flour and there are 3 batches of chocolate chip cookies.
So the total amount of flour used for the chocolate chip cookies is:
2 1/4 cups x 3 batches = 6 3/4 cups
We also know that the total amount of flour used for all 6 batches is 12 3/4 cups and we know how much flour is used for chocolate chip cookies: 12 3/4 cups - 6 3/4 cups = 6 cups
So the total amount of flour used for the oatmeal cookies is 6 cups.
And since there are 3 batches of oatmeal cookies, we can find out how many cups of flour are needed for each batch by dividing the total amount of flour by the number of batches:
6 cups / 3 batches = 2 cups
So each batch of oatmeal cookies uses 2 cups of flour.
Therefore, The total amount of flour used for the oatmeal cookies is 6 cups and Each batch of oatmeal cookies uses 2 cups of flour.
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Enter your answer and show all the steps that you use to solve this problem in the space provided. What is the result when 2 x 3 − 9 x 2 + 11 x − 6 2 x 3 - 9 x 2 + 11 x - 6 is divided by x − 3 x − 3 ? Show your work.
Answer:
2x^3 -9x^2 +11x-6 divided by x-3
Step-by-step explanation:
2x^2 - 3x + 2
------------------------------
x - 3 2x^3 - 9x^2 + 11x - 6
2x^3 - 6x^2
--------------------------------------subtract
-3x^2 + 11x
-3x^2 + 9 x
----------------------------------------subtract
2x - 6
2x - 6
-----------------------------subtract
0
- 2x^2 - 3x + 2
:/
Eve had some balls she tried to share them evenly first in 2 bags ,then in 3bags,and finally in 4 bags Each time ,she had one ball left over how many balls did Eve have
The number of balls that Eve has will be 25 balls.
How to illustrate the word problem?A word problem in mathematics simply refers to a question that is written as a sentence or in some cases more than one sentence which requires an individual to use his or her mathematics knowledge to solve the real life scenario given.
In this situation, Eve had some balls she tried to share them evenly first in 2 bags ,then in 3bags,and finally in 4 bags and each time ,she had one ball left over.
The number of balls that Eve has will be:
= (2 × 3 × 4) + 1
= 24 + 1
= 25 balls
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16. Write the equation of a linear function and define one point that lies on this function. Write the equation of your function translated 4 units to the left and 5 units down. What are the coordinates of
your new point?
The original linear function is:
y = 2*x + 4 with the point (1, 6)
The translated function is:
y = 2x + 7
And the translated point is (-3, 1)
How to translate the linear function?First, we want to write a random linear function, I will use:
y = 2*x + 4
To find a point on that line, we can just evaluate the function in x = 1, we will get:
y = 2*1 + 4
y = 2 + 4
y = 6
So we have the point (1, 6)
Now we want to translate it 4 units to the left and 5 units down.
To translate it 4 units to the left, we need to add 4 to the argument.
y = 2*(x + 4) + 4
And to translate it 5 units down, we just need to subtract 5, we will get:
y = 2*(x + 4) + 4 - 5
Now we can simplify this to get:
y = 2*x + 2*4 + 4 - 5
y = 2x + 8 + 4 - 5
y = 2x + 7
The new coordinates of the point are the same as the last ones, but we subtract 4 to the x-value and 5 to the y-value:
(1 - 4, 6 - 5) = (-3, 1)
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Can someone pls help me
Answer:
B,8.8cm
Step-by-step explanation:
I don't know if you have learned about the relations between the three sides of a 30,60,90 right-angled triangle. It shows one angle is 29, we will estimate it for 30.
Relations: 30 angled face side DF is 1, 60 face side EF is √3=1.732, 90 face side DE is 2
And we knew EF=7.7
So, 1.732/7.7=2:DE
1.732DE=15.4
DE=8.89
Sorry, I hope someone can help you in a simpler way.
3. In Ronaldo's first 3 soccer games, he scored the same amount of goals
(g). In his fourth game, Ronaldo scored 4 goals. If Ronaldo has a total of 10
goals altogether, how many goals (g) did he score in each of his first three
games? (Use g as your variable)
Answer: Ronaldo scored 6 goals in his first three soccer games
Step-by-step explanation: Ronaldo scored 6 goals in his first three soccer games because If he scored 4 goals in the fourth match then in the first 3 he would score 6 because 6 + 4 = 10 goals in total. Hope my answer was useful.
What number is 904 divisible by?
The numbers that 904 is divisible by are 1, 2, 4, 8, 113, 226, 452, and 904. You may also be interested to know that all the numbers that 904 is divisible by are also known as the factors of 904.
There are 301 numbers less than 904 divisible by 3, as per arithmetic progression.
What is an arithmetic progression?
"Arithmetic Progression is a sequence of numbers in order, in which the difference between any two consecutive numbers is a constant value."
Let, there are 'n' terms less than 904 divisible by 3.
Now, the first term divisible by 3 is(a) = 3.
The second term divisible by 3 is = 6.
Therefore, the common difference between terms divisible by 3 is(d)
The last term that is less than 904 and divisible by 3 is() 903.
Now, if we compare it with arithmetic progression, then
The required number is 301.
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What is x?
X= _______ degrees
Answer:
x = 149 degree
Step-by-step explanation:
First, we have to find the missing angle of the triangle
1 triangle = 180 degree
We know 2 angles, one is 63 degrees and one is 86 degrees.
63 + 86 = 149 degree
180 - 149 = 31 degree
So, the angle of the triangle is 31 degrees. Now we know that angle add with the x to get 180 degrees, so
180 - 31 = 149 degree
So, x = 149 degree