It will take Dionne 60 minutes and Elia 70 minutes to fold 210 packing boxes.
To find the unit rate for each person, divide the number of boxes they can fold by the time it takes them to fold them:
Dionne: 175 boxes / 50 minutes = 3.5 boxes/minute
Elia: 120 boxes / 40 minutes = 3 boxes/minute
Next, divide the total number of boxes to be folded (210) by each person's unit rate:
Dionne: 210 boxes / 3.5 boxes/minute = 60 minutes
Elia: 210 boxes / 3 boxes/minute = 70 minutes
So, it will take Dionne 60 minutes and Elia 70 minutes to fold 210 packing boxes.
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f(x) = 3x³ + 6x² + 4x +3; x+4 use synthetic division and the remainder theorem to find the remainder when f(x) is divided by x-c
The polynomials is divided using synthetic division and the remainder theorem to 3x³ -6x² - 20x - 77/x + 4
What is synthetic division?Synthetic division is described as one of the methods that is used to manually perform the Euclidean division of polynomials.
The steps taken in a synthetic division include;
Set up the polynomial, then bring the first number or the leading coefficient straight down.Put the result in the next column by multiplying the number in the division box with the number brought downWrite the result at the bottom of the row by the addition of the two numbers Repeat steps 3 and 4 till the last figureGiven the polynomial;
f(x) = 3x³ + 6x² + 4x +3 by x + 4
We have;
3 6 4 3
-4 _____-12__24___80__
3 -6 -20 -77
Then, we have;
3x³ -6x² - 20x - 77/x + 4
Hence, the expression is 3x³ -6x² - 20x - 77/x + 4
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PLEASE HELP!!! A right cone has a base with diameter 6 units. The volume of the cone is 72π cubic units.
What is the length of a segment drawn from the apex to the edge of the circular base
(slant height)?
Round to the nearest tenth. This is a multi-step problem so do not round until the final answer.
The segment drawn from the apex to the edge of the circular base is __ units.
The segment drawn from the apex to the edge of the circular base is 24.2 units.
The Pythagorean Theorem: What is it?A right triangle's hypotenuse, or side opposite the right angle, has a square length that, according to the Pythagorean theorem, is equal to the sum of the squares of the lengths of the other two sides.
The Pythagorean Theorem can be used to determine the slant height of a right cone. The circular base's radius is equal to its diameter times half, or 6/2 = 3 units.
The volume of the cone can be found using the formula:
V = (π/3)r²h
Where r is the radius, and h is the height of the cone. Plugging in the given values, we have:
72π = (π/3)r²h
72π = (π/3)3²h
72π = (π/3)9h
72π = 3πh
24 = h
Using the Pythagorean Theorem, we can find the slant height as follows:
c² = a² + b²
Where a and b are the height and radius of the cone, and c is the slant height. Plugging in the values we have:
c² = 24² + 3²
c² = 576 + 9
c² = 585
c = 24.2
Hence, the segment drawn from the apex to the edge of the circular base is 24.2 units.
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After a minor collision, a driver must take his car to one of two body shops in the area. Consider the following events. D=driver takes his car to shop D. L = driver takes his car to shop L. T= the work is complete on time. B= the cost is less than or equal to the estimate (under budget). a. Complete the tree diagram by filling in the missing path probabilities. b. What is the probability that the car is repaired under budget, on time, and with company D? c. What is the probability that the cost of the repair exceeds the estimate? d. What is the probability that the car is repaired under budget, given that it is ready on time? B 0.455 T + 0.226 B' D B 0.378 0.634 T' B' B 0.895 т. L B B 0.844 0.995 T' B'
(a) The tree diagram by filling in the missing path probabilities by subtracting the given value by 1 is given below.
(b) The probability that the car is repaired under budget, on time, and with company D is 0.00652.
(c) The probability that the cost of the repair exceeds the estimate is 0.3909.
(d) The probability that the car is repaired under budget, given that it is ready on time is 0.5804.
D = driver takes his car to shop D.
L = driver takes his car to shop L.
T= the work is complete on time.
B= the cost is less than or equal to the estimate (under budget).
(a) We have to complete the tree diagram by filling in the missing path probabilities.
The complete tree diagram is given below:
We used to complete the tree
1 - 0.634 = 0.366
1 - 0.226 = 0.774
1 - 0.844 = 0.156
(b) We have to determine the probability that the car is repaired under budget, on time, and with company D.
P(DTB) = 0.634 × 0.226 × 0.455
P(DTB) = 0.00652
(c) We have to determine the probability that the cost of the repair exceeds the estimate.
P(B') = P(DTB') + P(DT'B') + P(LTB') + P(LT'B')
P(B') = 0.634 × 0.226 × 0.545 + 0.634 × 0.774 × 0.622 + 0.366 × 0.156 × 0.105 + 0.366 × 0.844 × 0.005
P(B') = 0.390855
P(B') = 0.3909
(d) We have to determine the probability that the car is repaired under budget, given that it is ready on time.
P(B|T) = P(BT)/P(T)
P(B|T) = (0.634 × 0.226 × 0.455 + 0.366 × 0.156 × 0.895)/(0.634 × 0.226 + 0.366 × 0.156)
P(B|T) = 0.580373
P(B|T) = 0.5804
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At the lat baketball game the away team lot with a total 93 point The ball went through the baket for the away team a total of 42 time Strangely there wa no ucceful free throw hot How many hot of each did they make
The number of successful 3-point shots must be 51.
Basketball Score BreakdownIf the away team scored a total of 93 points and made 42 successful field goals, then the remaining points must have come from successful 3-point shots.
Since there were no successful free throw shots, the number of successful 3-point shots must be 93 - 42 = 51.
The information provided is about a basketball game where the away team lost and scored a total of 93 points. The team made 42 successful field goals, but there were no successful free throw shots. Based on this information, the remaining points were determined to have come from successful 3-point shots, which numbered 51.
The information is specific to this basketball game and the scoring system used in this game. Different basketball games may have different scoring systems and rules, so the information may not be applicable to other basketball games.
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Z varies jointly with x and y. If x = 7, y = 3, and z = −14, write the variation equation and find y when z = −8 and x = 3
The equation is z = (-2/3)*xy with of x , y and z are jointly varied.
What is Joint Variation ?Joint variation describes a situation in which, while the other variables are held constant, the value of one variable relies on the values of two or more additional variables.
Joint variation is used to describe when more than two variables are directly correlated or when one variable changes as a result of the change product of more than two variables. X can be symbolically expressed as X YZ if it is in joint variation with Y and Z. If Y is also constant, then X and Z directly depend on one another.
Joint variation is a type of variation where a quantity changes when two or more other numbers are multiplied together. For instance, when a rectangle's length or breadth changes, so does its area. Where A is the area, l is the length, and w is the width, we say that A = lw.
Joint Variation of x,y and z
z = kxy
k is the cofficient
for x = 7, y = 3 and z = -14
-14 = k*3*7
⇒k = -2/3
for x= 3 and z = -8
-8 = (-2/3)*3*y
y = 4
The equation is z = (-2/3)*xy with of x , y and z are jointly varied.
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what is the cube density the volume was 9.01?
0.947 g/ml is the cube density the volume was 9.01.
What is density?The term "density" refers to the ratio between the volume (the amount of space taken up by an item or substance) and the amount of matter contained inside (its mass). The quantity of mass per unit of volume is another method to define density.
We are know that items float in liquids when their density is less than that of the liquid.
Objects floating in a liquid are those whose density is equal to that of the liquid.
So, in this case, the cube is solely suspended in the first liquid combination. Therefore, the first liquid mixture's density is the same as a cube. The other mixes have densities that are higher than that of the cube.
Density of methanol = 0.7913 g/ml
Density of water = 1 g/ml
Density of the 6th liquid mixture:
= {(2 × 0.7913 ) + (1 × 6)}/8 g/ml
= 0.947 g/ml
Therefore density of cube = 0.947 g/ml
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The complete question is as follows:
What Is The Cube Density The Volume Was 9.01? The Cube Floated Up To 8.1 Ml
Please please please help
. Due in 30 minutes
Answer:
12. m = 1/3
14. m = 5/6
16. m = -5/2
Step-by-step explanation:
m = y2-y1/x2-x1
It’s not really that hard but I am just busy so please do this for me.
The Surface area are shown below.
What is Surface Area?The total area of an object's external facing surfaces is its surface area. The base, top, and lateral surfaces (sides) of the object's surface are added together to get the object's overall surface area.
1. The measure of sides are
A = 3
B = 15
C= 17
D= 8
So, the Lateral Surface Area
= ( 15+17+8) x 3
= 117 mm²
and, the total surface Area
= Area of two triangles + Area of rectangle
= 2 x 1/2 x 8 x 15 + 117
= 120 + 117
= 237 mm²
2. The measure of sides are
A = 5
B = 2
C= 9
D= 2
So, the Lateral Surface Area
= 2 x (5 x 9) + 2 (2 x 5)
= 110 m²
and, the total surface Area
= 110 + 2 (2 x 9)
= 146 m²
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d. q • q + r² and 2q + (r + r)
Answer:
q² + r² and2q + 2r
Step-by-step explanation:
q x q + r² and 2q + (r + r)
q × q + r² = q² + r²
----------
2q + (r + r) = 2q + 2r
On a cold winter day in
Poston, MA the
temperature
fell 27 degrees over the
course of 9 hours. Pased on
this change in temperature,
how many degrees did the
temperature fall each hour?
Answer:
3 Degrees each hour
Step-by-step explanation:
27 divided by 9 = 3
Juana Moreno computed the unit price on a 32-ounce container of yogurt and
found it to be $0.002 more per ounce than the unit price on 6 8-ounce containers of the
same yogurt. If the 32-ounce container costs $1.33 less than the cost of 6 8-ounce con-
tainers, find the cost of a 32-ounce container and the cost of 6 8-ounce containers.
The cost of a 32-ounce container is 2.92 and the cost of 6 8-ounce containers is $4.18.
How to find the cost of a 32-ounce container and the cost of 6 8-ounce containers?Word problems are sentences describing a 'real-life' situation where a problem needs to be solved by way of a mathematical calculation.
Let's call the unit price of 8-ounce yogurt x.
32-ounce unit price = x + 0.002
32-ounce container cost = 32 * (x + 0.002) =0.064 + 32x
6 * 8-ounce container cost = 6 * 8 * x = 48x
Given, 32-ounce container cost = 6 * 8-ounce container cost - $1.33
Substituting the costs,
0.064 + 32x = 48x - 1.33
Solving for x,
48x - 32x = 0.064 + 1.33
16x = 1.394
x = $0.087125
So, the unit price of 8-ounce container is $0.087125
Cost of 32-ounce container = $0.064 + 32 * (0.087125 + 0.002) = $2.92
Cost of 6 8-ounce containers = 6 * 8 * 0.087125 = $4.18.
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center: (6, 1); solution point: (5, 9)
If the Circle has Center: (6, 1); and solution point: (5, 9) , then the standard form of Equation is (x - 6)² + (y - 1)² = 65 .
The standard form of a circle is given by ⇒ (x - h)² + (y - k)² = r²,
where (h, k) is the center of the circle and r is the radius.
To find the standard form of the circle that has center (6, 1) and a solution point (5, 9), we need to find the radius "r" first.
The distance(r) between the center and the solution point is given by the Pythagorean theorem:
⇒ r = √((5 - 6)² + (9 - 1)²)
⇒ r = √((-1)² + (8)²)
⇒ r = √65
Now substituting radius(r = √65) in the standard form of the circle:
we get ;
⇒ (x - 6)² + (y - 1)² = √65²
⇒ (x - 6)² + (y - 1)² = 65
Therefore , the standard form of circle is (x - 6)² + (y - 1)² = 65 .
The given question is incomplete , the complete question is
Write the standard form of the circle that has Center: (6, 1); and solution point: (5, 9) .
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Haruka hiked everal kilometer in the morning. She hiked only
6 kilometer in the afternoon, which wa
25% percent le than he had hiked in the morning. How many kilometer did Haruka hike in all?
Haruka hiked about 14 kilometres in total.
According to the question
We don't know precisely how many kilometres Haruka travelled in the morning, but she hiked several kilometres in the morning and six kilometres in the afternoon. We may utilise the information provided—that her afternoon hike was 25% shorter than her morning trip—to solve the problem.
The unknown quantity (the number of kilometres hiked in the morning) may be represented as X in algebra. We may express the equation as follows if Haruka travelled 6 kilometres in the afternoon, which was 25% less than her morning hike:
6 = X - 0.25X
This equation can be simplified to:
6 = 0.75X
And finally, by solving for X, we get:
X = 8
In the morning, Haruka walked 8 kilometres. The distance travelled in the morning and afternoon are simply added together to provide the total number of kilometres hiked:
8 + 6 = 14 kilometers
Thus, during the course of the two excursions, Haruka covered a distance of 14 kilometres.
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Haruka hiked about 14 kilometres in total.
According to the question
We don't know precisely how many kilometres Haruka travelled in the morning, but she hiked several kilometres in the morning and six kilometres in the afternoon. We may utilise the information provided—that her afternoon hike was 25% shorter than her morning trip—to solve the problem.
The unknown quantity (the number of kilometres hiked in the morning) may be represented as X in algebra. We may express the equation as follows if Haruka travelled 6 kilometres in the afternoon, which was 25% less than her morning hike:
6 = X - 0.25X
This equation can be simplified to:
6 = 0.75X
And finally, by solving for X, we get:
X = 8
In the morning, Haruka walked 8 kilometres. The distance travelled in the morning and afternoon are simply added together to provide the total number of kilometres hiked:
8 + 6 = 14 kilometers
Thus, during the course of the two excursions, Haruka covered a distance of 14 kilometres.
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Select an ordered pair that is a solution to the equation represented by the graph.
(-4,0)
(-2, -4)
(-2,0)
(0, -4)
An ordered pair that is a solution to the equation represented by the graph include the following: A. (-4, 0).
What is an ordered pair?In Mathematics, an ordered pair is sometimes referred to as a coordinate and it can be defined as a pair of two (2) elements or data points that are commonly written in a fixed order within parentheses as (x, y), which represents the x-coordinate (abscissa) and the y-coordinate (ordinate) on the coordinate plane of any graph.
How to find an ordered pair that is a solution to the equation?In order to determine the ordered pairs that represent points on the graph of any given function, we would read all the ordered pairs that lie on its line, with respect to the x-coordinate (abscissa) and the y-coordinate (ordinate).
By critically observing the graph of the given function, the required solutions are include following;
Ordered pair = (-4, 0).
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In the diagram below AL || BK || CH || DG. If DG = 3, GE = 5,HG = 5, KH = 5, LK = 5 determine the length of AL, BK, and CH.
The length of AL, BK and CH are 12, 9 and 6 respectively.
What are Similar Triangles?Similar triangles are those triangles which has the same shape but different size.
The length of sides are proportional in similar triangles.
Given a figure of a big triangle.
We can clearly see that angles made by each of the triangles ALE, BKE, CHE and DGE are equal and thus they are similar triangles.
The sides of similar triangles are proportional.
DG / GE = CH / HE = BK / KE = AL / LE
We have DG = 3, GE = 5,HG = 5, KH = 5, LK = 5
HE = 5 + 5 = 10
KE = 5 + 5 + 5 = 15
LE = 5 + 5 + 5 + 5 = 20
Substituting,
Consider DG / GE = CH / HE
3 / 5 = CH / 10
CH = (3/5) × 10 = 6
Consider DG / GE = BK / KE
3 / 5 = BK / 15
BK = (3/5) × 15 = 9
Consider DG / GE = AL / LE
3 / 5 = AL / 20
AL = (3/5) × 20 = 12
Hence the length of AL is 12, length of BK is 9 and length of CH is 6.
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3¼% of $500 is? ........
Answer:
3¼% of $500 is $16.25.
Step-by-step explanation:
Refer to the T-account below:Manufacturing Overhead(2)4,000(9)150,000(3)15,000(4)80,000(5)30,000(6)25,000154,000150,000Bal.4,000Entry (4) could represent which of the following except?A) Indirect labor cost incurred.B) Factory insurance cost.C) Overhead cost applied to Work in Process.D) Depreciation on factory equipment.
Cost of goods manufactured= $905,000 Overhead cost applied to Work in Process and hence option c is correct
To calculate the cost of goods manufactured, we need to use the following formula:
cost of goods manufactured= beginning WIP + direct materials + direct labor + allocated manufacturing overhead - Ending WIP
Schedule cost of goods manufactured:
Beginning WIP= 40,000
Direct materials used= 20,000 + 400,000 - 30,000= 390,000
Direct labor= 60,000
Allocated manufacturing overhead= 485,000
Ending WIP= (70,000)
Cost of goods manufactured= $905,000
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Which postulate or theorem would you use to prove MXQ= PXN?
A. AAS
B. SAS
C. ASA
D. SSS
E. HL
The postulate theorem used to prove the congruence of triangles MNQ and PXN is given as follows:
B. SAS.
What is the Side-Angle-Side congruence theorem?The Side-Angle-Side congruence theorem states that if any of the two sides on a triangle are the same, along with the angle between them, then the two triangles are congruent.
The congruent sides are given as follows:
MX and XP.QX and XN.The angle between these two sides is a vertical angle, having the same measure in each of the triangles, hence the SAS theorem can be applied and the correct option is given by option B.
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How many solutions does the system of equations below have? 9x 6y=-2 - 18x12y = -4
The system is dependent and has infinitely many solutions.
What is the system of equations?
A system of linear equations is a set of two or more equations that includes common variables. To solve a system of equations, we must find the value of the unknown variables used in the equations that must satisfy both equations.
The system of equations below can be written as:
9x + 6y = -2
-18x - 12y = -4
To find the number of solutions, we need to determine if the system has a unique solution, no solution, or infinitely many solutions.
To do this, we can use the concept of compatibility. If the system is compatible, meaning that there exists a set of values for x and y that satisfy both equations, then the system has at least one solution.
If the system is inconsistent, meaning that there is no set of values for x and y that satisfies both equations, then the system has no solution.
If the system is dependent, meaning that the two equations represent the same line in the plane, then the system has infinitely many solutions.
In this case, we can see that both equations represent the same line in the plane.
Therefore, the system is dependent and has infinitely many solutions.
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Please fill in blanks:
If the standard deviation of cholesterol changes is 5 cholesterol points, construct a 95% confidence interval (using a z-score of 2). The lower bound of the confidence interval is ____ and the upper bound is ____ Notice that the confidence interval includes zero, which means that we cannot be certain that the drug has an effect. In other words, our sample mean of 8 is not statistically significant.
The confidence interval has a lower bound of 6.04 and an upper bound of 9.96.
What is confidence interval?A confidence interval is a range of estimates for an unknown parameter in frequentist statistics. A confidence interval is calculated at a specified confidence level; the 95% confidence level is most commonly used, but other levels, such as 90% or 99%, are occasionally employed. The confidence interval is the range of values within which you expect your estimate to fall a given proportion of the time if you repeat your experiment or re-sample the population in the same manner. A 95% confidence interval is a range of values above and below the point estimate where the real value in the population is 95% likely to reside.
Here,
For a two-tailed 95% confidence interval, the alpha value is 0.025, and the corresponding critical value is 1.96. This means that to calculate the upper and lower bounds of the confidence interval, we can take the mean ±1.96 standard deviations from the mean.
sample mean=8
upper and lower bounds of the confidence interval,
=mean ±1.96
=[8-1.96,8+1.96]
=[6.04,9.96]
The lower bound of the confidence interval is 6.04 and the upper bound is 9.96.
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Costa is planning a lunch banquet. The equation c=450+28g models the relation between the cost in dollars, c, of the banquet and the number of guests, g. Interpret the slope of the equation.
The slope of the equation c=450+28g represents the increase in cost per additional guest.
Typically, a line's slope provides information about the steepness and direction of the line. Finding the difference between the coordinates of the locations will allow you to quickly compute the slope of a straight line connecting two points, (x1,y1) and (x2,y2). The letter "m" is frequently used to signify slope.
We can see that the preceding equation is in the slope-intercept format, where m denotes the line's slope and b is its y-intercept or starting point.
In this case, the slope is 28 dollars per additional guest. This means that for every additional guest, the cost of the banquet increases by $28.
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find the equation of the plane with the given description. passes through (1, 3, 6) and is parallel to x = 11.
The equation of the plane that passes through (1, 3, 6) and is parallel to x = 11 is x = 1.
What do you mean by Algebraic Expression?An algebraic expression is a mathematical phrase that can contain numbers, variables, and operations (such as addition, subtraction, multiplication, and division). It represents a value that can be determined if the values of the variables are known. An algebraic expression does not contain an equal sign and cannot be solved like an equation, but it can be simplified or manipulated using algebraic rules. For example, the expression 2x + 3y is an algebraic expression, where x and y are variables.
A plane can be represented by a normal vector (a,b,c) and a point (x⁰,y⁰,z⁰) that lies on the plane. If a plane is parallel to the plane x = 11, the normal vector must be in the direction of the x-axis, meaning (a,b,c) = (1,0,0).
The equation of the plane can then be found using the point-normal form, which is given by:
ax + by + cz = d, where d = ax⁰ + by⁰ + cz⁰
Plugging in the values for (1,3,6) and (a,b,c) = (1,0,0), we get:
a(1) + b(3) + c(6) = d
1 + 0 + 0 = d
d = 1
So the equation of the plane that passes through (1,3,6) and is parallel to x = 11 is: x = 1
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Write the standard form of the equation of the circle with the given characteristics. Center: (6, 1); Solution point: (5,9) Select one: a. (x + 6)^2 + (y + 1)^2 + 65 = 0 | b. (x+6)^2 + (y + 1)^2 = 65 | c. (x – 6)^2 + (y - 1)^2 = 65 | d. (x-1)^2+(3-6)^2 = 65 | e. (x - 6)^2 + (y + 1)^2 – 65 = 0
The standard form of the equation of the circle with the given characteristics is (x - 6)² + (y - 1)² = 65.
What is an equation?
An equation is a mathematical statement that proves two mathematical expressions are equal in algebra, and this is how it is most commonly used. In the equation 3x + 5 = 14, for instance, the two expressions 3x + 5 and 14 are separated.
Given, center: (6, 1) and solution Point: (5,9)
By solution point, it means that the circle passes through that point. Hence, the radius of the circle is the distance between (6, 1) and (5,9)
Distance formula is given by
D = √[(x2 - x1)² + (y2 - y1)²]
D= √[(5 - 6)² + (9 - 1)²] = 8.062
r= 8.062 or r²=65
We have, equation of the circle centered ant (h, k) and radius ‘r’ as
(x - h)² + (y - k)² = r².
=> (x - 6)² + (y - 1)² = 65.
The standard form of the equation of the circle with the given characteristics is (x - 6)² + (y - 1)² = 65.
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Jack measured a line to be 17.2 inches long. If the actual length of the line is 16.6 inches, then what was the percent error of the measurement, to the nearest tenth of a percent?
Answer:
The percent error of Jack's measurement was 3.6%, to the nearest tenth of a percent. This is calculated by subtracting the actual length (16.6 inches) from the measured length (17.2 inches) and dividing by the actual length, then multiplying by 100.
Step-by-step explanation:
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Put the following percentages and fractions in order starting with the largest.
Largest
3%
11/100
77%
92/100
36/100
58%
Smallest
Answer:
[tex]\frac{92}{100\\}[/tex], 77%, 58%, [tex]\frac{36}{100}[/tex], [tex]\frac{11}{100}[/tex], 3%
Step-by-step explanation:
I changed them all to percents
3 %
[tex]\frac{11}{100}[/tex] Percent means what out of 100? 11%
77%
92/100 = 92%
36/100 = 36%
58%
Which angle measures 40
Check the picture below.
2,500 centimeters equals how many meters?
Which equation can be used to find the value of x?
Please help me I really need it
The value of x for the expression is 168 = 18x + 12.2x.
What is an expression?Example: 2 + 3x + 4y = 7 is an expression.
We have,
168 = 18x + 12.2x
Add like terms.
168 = 30.2x
Divide both sides by 30.2
168/30.2 = x
x = 5.56
Thus,
The value of x is 5.56.
An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.This equation can be used to find the value of x, which is the length of the side of a triangle (abcd). The equation is 16818-3x+12.2x. The equation is derived from the known lengths of the sides of the triangle. The sides are ab, bc, cd, ef, and fa. We know the length of side ab, which is 18 cm, and the length of side cd, which is 12 cm. We also know the length of side ef, which is 6 cm. The length of side bc is 2x cm, and the length of side fa is x cm. Using these known lengths of the sides of the triangle, we can create an equation to find the length of side fa. We can do this by adding the lengths of the sides and subtracting 3x from the result. This equation, which is 16818-3x+12.2x, can then be used to find the value of x.To learn more about expression referto:
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find the equation of the line that id perpendicular to -2x-9y=1 and passes through the point (-7,-5)
Answer:
y = (9/2)x + 26.5
Step-by-step explanation:
Lets rewrote the equation in standard format of y = mx + b, where m is the slope and b is the y-intercept.
-2x-9y = 1
-9y = 2x + 1
y = -(2/9)x - (1/9)
The slope of this line is -(2/9)
A line that is perpendicular to this line will have a slope that is the negative inverse of -(2/9). That would be (9/2). So a perpendicular line will have the form of y = (9/2)x + b. Any value of b can be chosen and the lines will still be perpendicular to each other. However, we want to find a value of b that will force the line through point (-7,-5). This is done by using the point in the above equation and solving for b:
y = (9/2)x + b
-5 = (9/2)(-7) + b for point (-7,-5)
-5 = -(63/2) + b
b = -5 + (63/2)
b = -5 + 31.5
b = 26.5
The equation is y = (9/2)x + 26.5
See the attached graph.
Consider the scatter plot.
What type of association does the scatter plot show?
Drag a word or phrase into the box to correctly complete the sentence.
The scatter plot shows [ BLANK ] association.
The scatter plot shows [negative linear] association.
How to determine the association of the scatterplotFrom the question, we have the following parameters that can be used in our computation:
The image of the scatter plot
On the scatter plot, we can see that
The points appear to be on a straight line
Also, we can see that
As the x values increases the y values decreases
This represents a negative linear] association.
Hence, the association is a negative linear] association.
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