A. The statement is false. [-2 5] and [-5 2] do not lie on a line through the origin, as they do not have the same slope. The arrows they correspond to meet at right angles, which means they form a line perpendicular to the origin.
B. Correct! The statement is false. [-2 5] and [-5 2] do not lie on a line through the origin, as they do not have the same slope. The arrows they correspond to meet at right angles, which means they form a line perpendicular to the origin.
C. Correct! The statement is true. [-2 5] and [-5 2] correspond to arrows pointing in precisely opposite directions and so are on the same line through the origin.
D. Incorrect. The statement is false. [-2 5] and [-5 2] do not lie on a line through the origin, as they do not have the same slope. The arrows they correspond to meet at right angles, which means they form a line perpendicular to the origin.
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Describe at least two similarities between constructing a perpendicular line through a point on a line and constructing a perpendicular through a point off a line
Both of these procedures start by drawing two arcs to the sides of the point and they both have six angles.
What is the equation of a perpendicular line?Let the equation of the line be ax + by + c = 0. Then the equation of the perpendicular line that is perpendicular to the line ax + by + c = 0 is given as bx - ay + d = 0. If the slope of the line is m, then the slope of the perpendicular line will be negative 1/m.
The following are the two similarities between drawing a perpendicular line through a point on a line and drawing one through a point of a line:
Both of these procedures start by drawing two arcs to the sides of the point. They both have six angles.Both of these procedures start by drawing two arcs to the sides of the point and they both have six angles.
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Cleatus owns a large number of goats and relies on them to make his living. He
wakes up one morning to find half of his flock dead in the field. Cleatus cannot see
any evidence of a predator and is at a loss as to what happened to his goats Local
scientist Alcmaeon asks if he can take a few of the dead goats with him to attempt to
figure it out. How will Alcmaeon MOST likely attempt to solve this mystery of sudden
goat death that decimated Cleatus's flock?
The most likely way Alcmaeon will try to solve this mystery about the sudden death of the goats would be by taking blood samples to analyze a possible disease or epidemic in the goat herd.
What would be the best option to decipher the cause of death of the Cleatus goats?The best option to decipher the cause of death of the Cleatus goats is to take a sample from one of the goats to do an autopsy and identify the possible cause of death. Additionally, you can take blood samples to analyze a possible disease or infection that has caused the death of the sheep.
This would be the most effective way of detecting a possible cause of death as it allows Cleatus to know if the goats left alive are sick or at risk of dying from a disease.
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Construct the cumulative frequency distribution that corresponds to the given frequency distribution. Number Speed of cars 0-29 4 30-59 16 60-89 60 90-119 20 Cumulative Speed Frequensy Less than 30100 Less than 60 80 Less than 90 82 Less than1 201 Cumulative SpeedFrequency Less than 30 Less than 60 20 Less than 90 80 Less than1 20 100 Cumulative Speed Frequency Less than 30 0.04 Less than 60 0.20 Less than 90 0.80 Less than1 201.00
The cumulative frequency distribution table is present below. Cumulative frequency for speed less than 30 is 4 , less than 60 is 20 , less than 90 is 80 less than 120 is 100. So, correct answer is option (b).
The cumulative frequency of a variable's value is the number of values in the collection of data that are less than or equal to the variable's value. Example: Let the raw data be 2, 2, 1, 5, 5, 6, 5, 3, 7, 7, 5, 6. Cumulative frequency of 3 = 4. Cumulative frequency is a frequency distribution table for the predecessor total. The final value is always equal to the sum of all observations, since all frequencies have already been added to the previous sum. We have a data corresponds to the frequencydistribution.
Speed Number of cars
0-29 4
30-59 16
60-89 60
90-119 20
We have to construct the cumulative frequency distribution for the above frequency distribution.Using the above rules we can construct distribution as,
Speed Number of cars Cumulative Freq
0-29 4 4
30-59 16 16 + 4 = 20
60-89 60 60 + 20= 80
90-119 20 20 + 80 = 100
-----------
Total 100
Thus , cumulative frequency for speed less than 30 is 4 , less than 60 is 20 , less than 90 is 80
less than 120 is 100.
Hence, we got the required cumulative frequencies for frequency distribution.
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Complete question:
Construct the cumulative frequency distribution that corresponds to the given frequency distribution. Number Speed of cars 0-29 4 30-59 16 60-89 60 90-119 20 a)Speed Cumulative Frequensy
Less than 30 100
Less than 60 80
Less than 90 82
Less than 120 1
b)Speed Cumulative Frequency
Less than 30 4
Less than 60 20
Less than 90 80
Less than1 20 100
c) speed Cumulative Frequency
Less than 30 0.04
Less than 60 0.20
Less than 90 0.80
Less than120 1.00
Find the LCM of 1-x^2 and (x-1)^3
The LCM of 1-x^2 and (x-1)^3 is (x-1)^3.
How to find the LCM of the Polynomial?To find the LCM, we take the polynomial with the highest degree (which determines the degree of the LCM) and then make sure that it contains all the terms from the other polynomials.
The degree of (x-1)^3 is 3 and the degree of 1-x^2 is 2.
So, we take (x-1)^3 as the starting point for the LCM and then add any missing terms from 1-x^2.
In this case, (x-1)^3 already contains all the terms from 1-x^2, so the LCM is (x-1)^3.
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Given that u=(2, - 1,1),v=(1,1)
A manufacturer wants to make open tin boxes from pieces of tin with dimensions 8 in. by 15 in. by cutting equal squares fromthe four corners and turning up the sides. Find the side of the square cutout that gives the box the largest possible volume.
a) 0 in.
b) 6 in.
c) 5/3 in.
d) 2450/27 in.
The side of the square cutout that gives the box the largest possible volume
Therefore the answer is d) 2450/27 in.
To find the side length of the square cutouts that give the box the largest volume, we need to find an expression for the volume of the box in terms of the side length of the square cutouts. We can start by subtracting four times the area of one square cutout from the total area of the tin sheet to find the area of the box sides. The volume of the box will then be equal to the area of the box sides multiplied by the height.
The side length of the square cutouts can be represented by x. The area of one square cutout is x^2, so the total area of the four cutouts is
4x^2
The area of the tin sheet is 8 * 15 = 120. The area of the box sides is then
120 - 4x^2
The volume of the box is then (120 - 4x^2) * 8, which we want to maximize. To do this, we can differentiate the expression for the volume with respect to x and set it equal to zero, then solve for x. The solution to this optimization problem is
x = 2450/27, which is the side length of the square cutouts that gives the box the largest volume.
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Help Please I have 7 of these to do within 30 minutes and i dont get them
Answer:
angle JKL is 22°
Step-by-step explanation:
You want the measure of exterior angle JKL represented by (5x-3)°, given that the remote interior angles of ∆IJK are I = (2x +8)° and J = (x -1)°.
Exterior angleThe exterior angle is equal to the sum of the remote interior angles:
angle JKL = angle I + angle J
5x -3 = (2x +8) +(x -1)
5x -3 = 3x +7 . . . . . . . . . simplify
2x = 10 . . . . . . . . . . . add 3-3x
x = 5 . . . . . . . divide by 2
5x -3 = 5(5) -3 = 22 . . . . . degrees
Angle JKL is 22 degrees.
__
Additional comment
It is helpful to draw a figure. The attached figure is not to scale, but the angle measures are appropriately labeled.
The unlabeled interior angle at K is supplementary to the labeled exterior angle there. That same interior angle is also supplementary to the sum of the other two interior angles, since the sum of all the angles is 180°. Two angles supplementary to the same angle are congruent. This means the exterior angle JKL is congruent to the sum of the two marked interior angles. It's a simple relation, easy to derive, and useful to remember.
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PLEASE ANSWER
The perimeter of the rectangle below is 120 units. Find the length of side VY .
Write your answer without variables.
The length of side VY is 25.
What is a regular figure and its perimeter?A regular figure with n-sides has n equal sides in it, and they are the only parts of it(that means, nothing more than those equal lengthed n sides).
Suppose that length of each side of that figure be of u units, then we have the perimeter as:
P=u+u+...+u (n times) = n xu
units.
Given;
The perimeter of the rectangle below is 120 units
The two sides of rectangle are 2y+3 and3y+2
Now,
2l+2b=120
2(2y+3)+2(3y+2)=120
4y+6+6y+4=120
10y+10=120
y+1=12
y=11
VY=2y+3
VY=2*11+3
VY=25
Therefore, the length according to given perimeter will be 25units.
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What are all the number of miles? Where do I plot the points on the coordinate plane? What is a function that represents the graph?
Therefore , the solution of the given problem of coordinate plane comes out to be Y coordinates comes out to be -3 , -2, -1 , 0, 1,2,3
What is the function of coordinate plane?By portraying the inputs and outputs as a horizontal number line (the x axis) and a vertical number line (the y axis), respectively, the Cartesian coordinate plane enables us to perceive ordered pairs. The quantity in the x component is moved horizontally. Move to the right if x is positive. Move to the left if x is negative.
Here,
Given :
=> -30 , -20 ,-10 ,0 ,10, 20 , 30
=> So ,
Y coordinates comes out to be :
=> -3 , -2, -1 , 0, 1,2,3
An ordered pair of numbers, or x-coordinate and y-coordinate on the x-axis respectively, can be used to represent each point.
Written in parenthesis are ordered pairings (x-coordinate, y-coordinate). The source is situated at (0,0).
Check your coordinates, which are two numbers enclosed in parenthesis and separated by a comma, to see how to graph a point on the coordinate plane.
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An athlete wants to supplement his daily diet with beef and plant proteins. The content of iron, calcium, and vitamins (in milligrams per spoonful) is given in the table:
Product Iron Calcium Vitamins
Beef Protein 6 3 2
Plant Protein 2 3 4
Which graph shows the number of spoonfuls of beef protein and plant protein he needs to include in his diet to receive at least 18 milligrams of iron, 21 milligrams of calcium, and 16 milligrams of vitamins?
The correct graph for the supplements is attached below.
What is the bar chart?A bar chart is a graph that uses bars to represent and compare data. The length of the bar represents the magnitude of the data being displayed, with longer bars indicating larger values.
Bar charts can be used to display data for one or more categories, and can be either vertical or horizontal. They are commonly used to compare and visualize the distribution of categorical data.
The correct bar graph that shows the distribution of the supplements have been shown in the image that is attached to the answer that we have here.
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A runner is jogging at a constant speed of 3.3 miles per hour.
Find the distance d
that the runner jogs as a function of the time spent jogging t
. Call this function d(t)
. Use *, an asterisk, for any multiplication and /, a slash, for any division.
d(t)=
Find the inverse function by expressing the time spent jogging t
in terms of the distance jogged d
. Call this function t(d)
. Use *, an asterisk, for any multiplication and /, a slash, for any division.
t(d)=
The function for distance jogged is d(t) = 3.3t and the inverse of the function is d(t)⁻¹ = 3.3/t.
What is a function?A function can be defined as the outputs for a given set of inputs.
The inputs of a function are known as the independent variable and the outputs of a function are known as the dependent variable.
Let, 'd' be the distance covered in miles, and 't' is the time in hours.
Therefore, From the given information d(t) = 3.3t.
Let, d(t) = y.
So, y = 3.3t.
t = 3.3/y.
d(t)⁻¹ = 3.3/t.
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A sector of a circle has an area of 20 square feet. Find the central angle which forms the sector if the radius is 5 feet. The central angle of the sector isradians. (Type an integer or a simplified fraction.)
The area of a sector of a circle is equal to the central angle multiplied by the radius squared, divided by 2. In this case, the sector of the circle has an area of 20 square feet, the radius is 5 feet, and we need to find the central angle.
The central angle will be 6.28 radians.
To find the central angle, we can rearrange the equation to solve for the angle:
Central Angle = (2 * Area) / (Radius^2)
Substituting the given values, we get:
Central Angle = (2 * 20) / (5^2)
Simplifying, we find that the Central Angle equals 6.28 radians.
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Whoever answers right will get brainliest
Answer this but with top being the following instead of picture
investment a : $3000 invested for six years compounded, semi annually at 7%
Investment b: $5000 invested for five years compounded quarterly at 3.2%.
Answer: $8000 is invested for 6 years
Step-by-step explanation:P=$3,000 r= 7%= 0.07 t= 4 n= 2
I have a triangle with a measure of 15 cm, what will be its perimeter?
Answer: Its perimeter is 45 cm.
Step by step explanation:
Data :
We have a triangle with a measure of 15 cm
We must simplify taking into account that it is an equilateral triangle, all its sides are equal, therefore the perimeter is the sum of its sides:
P = Sum of its sides[tex]\bf P= 15 + 15 + 15[/tex]
[tex]\boxed{\bf \: P = 45 \: cm}[/tex]
Rpt: Its perimeter is 45 cm.
Simplify this problem! thank you
Answer:
-3y
Step-by-step explanation:
-√(9y²) = -√((3y)²)
= -3y
the first 4 terms in a sequence are 8,5,2,-1... What is the recursive equation?
Answer:
aₙ = aₙ₋₁ - 3, a₀ = 8
Step-by-step explanation:
Minus three every time thus the recursive equation would be aₙ = aₙ₋₁ - 3, a₀ = 8
What is the name of the segment inside the large triangle?
Answer:
Altitude: Segment from a vertex of a triangle that is perpendicular to the opposite side. This segment may be inside the triangle, on the triangle, or outside the triangle. Pictured below are the altitudes (represented as black segments) of acute, right, and obtuse triangles.
Step-by-step explanation:
Divide R60 in the ratio 1:2
In order to divide the amount Rs.60 in the ratio 1:2
We take x as the variable that replicates the 1st amount + 2nd amount = Rs.60
Putting the values into a equation we get
1x + 2x = 60
3x = 60
x = [tex]\frac{60}{3}[/tex]
x = 20
Hence the amounts are ,
1x = 20
2x = 2 x 20 = 40
is 14 a polynomial or a non-polynomial
is x+1 a polynomial or a non-polynomial
is 14 vx a polynomial or a non-polynomial
is x-2 -2x+4 a polynomial or a non-polynomial
Answer:
14 is a polynomial.
x+1 is a polynomial.
14vx is not a polynomial.
x-2 -2x+4 is a polynomial.
14 is a polynomial, x+1 is a polynomial, 14vx is not a polynomial, x-2 -2x+4 is a polynomial.
A polynomial is an equation made up of indeterminates and coefficients that only uses addition, subtraction, multiplication, and positive-integer powers of variables.
Polynomials are algebraic expressions with indeterminates and constants in them. Polynomials can be thought of as a mathematical dialect. They are used to express numbers in practically every subject of mathematics and are quite significant in others, such as calculus.
Polynomials cannot include the following:
Variables with negative or fractional exponents.Variables in the numerator.Variables that fall under a radical.Special characteristics. (trig functions, absolute values, logarithms, and so on).To know more about Polynomials,
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HELPP!!!
How can you tell whether a graph is a function?
Answer:
Vertical Line Test
Step-by-step explanation:
If a vertical line is drawn on a graph of a relation and only intersects the graph at one point, then that graph represents a function. If there is no vertical line intersecting the graph at two or more points, then the graph does not represent a function.
estimate the following sum: 2 1/3 + 5 5/16 + 2/7=
The of sum of the fraction 2 1/3 + 5 5/16 + 2/7 is 7 313/336
How to estimate the sum of fractions?
Fractions are represented as numerical value, which defines a part of a whole. A fraction can be a portion or section of any quantity out of a whole, where the whole can be any number, a specific value, or a thing
We want the of sum 2 1/3 + 5 5/16 + 2/7 =
For convenience sake, we can convert the mixed fractions to improper fractions. That is:
2 1/3 = 7/3
5 5/16 = 85/16
2 1/3 + 5 5/16 + 2/7 = 7/3 + 85/16 + 2/7
The LCM of 3, 16 and 7 is 336
= (7*112 + 85*21 + 2*48)/336
= (784 + 1785 + 96)/336
= 2665/336
= 7 313/336
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Perform the indicated operation and simplify the result.
Answer:
Where is the equation?
Step-by-step explanation:
I need it to solve this problem
Estimate the mean of the distribution. You are given full credit if the estimate is within 2 units of the actual mean. It is okay to use decimals in your answer.
The estimated mean of the distribution for the given question will be 10.
Mean = 13 + 52 + 48 + 28 + 28 + 23 + 14 + 13 + 10 + 4 + 2 + 4 + 2 + 1 + 1 + 0 + 2 + 0 + 0 + 0 + 1 + 1 + 1 + 1 + 1
Total number =25
Now, divided the sum by 25
We get, the mean is equal to 10.
In mathematics, particularly in statistics, there are various types of means. Every mean serves to condense a specific set of data, frequently to help understand the overall significance of a particular data set. Only numerical variables, whether continuous or discrete, can be used to calculate the mean. Simply dividing the total number of values in a data set by the sum of all of the values yields it. The calculation can be performed on unprocessed data or data that has been combined into a frequency table.
Note that the illustration for graph is: (check the attached image)
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please answer quickly, question from ixl.
Answer:
5x>20 and 4
Step-by-step explanation:
x is how many packs Dave bought
5x>20 because he went over the 20 dollar budget
5(4) = 20
Buying 4 packs of cards wouldn't go above the budget, so he must've bought more than 4 packs of cards.
Solve for r.
V = 4/3πr³
What is r equal to? (Hint: Notice that r is cubed, not squared.)
The value of r is equal to the cube root of (V * (3π/4)).
What is r equal to?To solve for r, we need to rearrange the equation to isolate r.Starting with:V = 4/3πr³Divide both sides by 4/3π:V * (3π/4) = r³Take the cube root of both sides:r = (V * (3π/4))^(1/3)So, the value of r is equal to the cube root of (V * (3π/4)).Note: The equation for the volume of a sphere is V = 4/3πr³, where r is the radius of the sphere.To learn more about volume of sphere refer:
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The number of cigarettes smoked in 1925 was approximately __ billion
The number of cigarettes smoked in 1925 was approximately 1.3 billion.
What was the percentage of smokers in 1960?42 percent, Focus Area (2002) February 2011 Over the past 50 years, there has been a significant decline in the number of Americans who smoke. Smoking was generally tolerated in the 1960s, with 42 percent of Americans reportedly regularly smoking.Smoking was significantly more common among males than women around the end of the 1920s. Around 65% of men smoked up until around 1960, but that number dropped to 25% by the year 2000. Smoking among women grew from a low of approximately 5% around the year 1930 to about 35% in 1975.The number of cigarettes smoked in 1925 was approximately 1.3 billion.To learn more about cigarettes refer to:
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Can someone help me please
I have to do this maze for Geometry and it’s due tomorrow.
X has to equal 11 and all I have to work with is “the measure of angle 2 = 3x+5” and a random 64.
These are isosceles triangles. I don’t understand.
Help :’)
The measure of angle 2 is 38° and the value of x is 11
How to find the measure of angle 2?Geometry is a branch of mathematics concerned with the study of space, shapes, sizes, and positions of objects. It covers topics such as points, lines, angles, surfaces, and solids.
Check the attached image for labelling. From the figure:
u = 64° (base angles of an isosceles triangle are equal)
t = 180 - 64 - 64 = 52° (Sum of angles in a triangle)
y = 90 - t
y = 90 -52 = 38°
y = m∠2 (base angles of an isosceles triangle are equal)
m∠2 = 38°
m∠2 = 3x + 5
3x + 5 = 38°
3x = 38 - 5
3x = 33
x = 33/3
x = 11
Therefore, the value of x is 11
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jill wants to make a blend of mango and papaya juices and store it in a container that can hold no more than a total of 32 ounces. if m represents the number of ounces of mango juice in the blend and p represents the number of ounces of papaya juice in the blend, which of the following inequalities represents this scenario? A m - p< 32 m - p2 32 C m+p<32 D m+p2 32
jill wants to make a blend of mango and papaya juices and store it in a container that can hold no more than a total of 32 ounces. So, m + p ≤ 32 inequalities represents this scenario.
What is an inequality?A relationship that compares two numbers or even other mathematical expressions in an unequal way is known as an inequality in mathematics. The majority of the time, size comparisons between two numbers on the number line are made. Less than, larger than, less than or equal to, and more than or equal to are the four fundamental inequalities. A mathematical connection between two expressions is known as an inequality, and it is shown using one of the following: "≤" , "≥" , "<" and ">".
Given that,
Number of mango = m
Number of papaya = p
The limit of juices should be less than or equal to 32 ounces
Thus, the sum of mass of mangoes and papaya should be less than or equal to 32 ounces.
So, m + p ≤ 32
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The complete question is as follows:
A library manager is interested in the number of people using the library. She decides to perform a count every 28th day for one year, starting next Monday. What type of sampling method is this?
answer choices
a. Systematic sampling
b. Convenience sampling
c. Stratified sampling
d. Quota sampling
A library manager is interested in the number of people using the library. She decides to perform a count every 28th day for one year, starting next Monday. The systematic sampling method is this.
Hence, option (a) is the correct choice.
The library manager employs systematic sampling as a sample approach.
Systematic sampling is a form of probability sampling approach in which sample members are drawn from a larger population at random but with a set, periodic interval.
The sampling interval is determined by dividing the population size by the desired sample size.
Systematic sampling is a technique for picking a sample from a larger population at regular intervals. In this scenario, the library manager selects a sample of library users by tallying the number of persons every 28th day.
It is a systematic sampling approach since the intervals (28th day) are fixed and systematic.
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Graham volunteers each Saturday at a veterinarian's office.
He spends 3 hours cleaning.
He walks dogs for 15 minutes (0.25 hours) each.
• He walks 1 dog at a time.
He volunteers no more than a total of 5 hours each Saturday.
The inequality 3+0.25x ≤5 describes the situation, where x represents the number of dogs he walks. Which of the following is a
reasonable solution to this inequality?
A. 7
B. 11
C. 9
D. -5
