Answers
Using the given information, the percent error is 52%
Percentage errorFrom the question, we are to calculate the percentage error
From the given information,
Prediction = 23 people
Actual = 48 people
Using the formula,
[tex]Percent \ error = \frac{|Prediction - Actual|}{|Actual|}\times 100\%[/tex]
[tex]Percent \ error = \frac{|23 - 48|}{|48|}\times 100\%[/tex]
[tex]Percent \ error = \frac{|-25|}{|48|}\times 100\%[/tex]
[tex]Percent \ error = \frac{25}{48}\times 100\%[/tex]
Percent error = 52.083%
Percent error ≈ 52%
Hence, the percent error is 52%
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Related Questions
The dot plots below show the ages of students belonging to two groups of painting classes:
Based on visual inspection, which group most likely has a lower mean age of painting students? Explain your answer using two or three sentences. Make sure to use facts to support your answer. (10 points)
Answers
On the base of visual inspection , it can be said that the Group A has an average lower than the Group B
What is a Dot Plot ?It is the simple form of data visualization , in which the frequency of a data is marked as dots on x and y axis.
The dot plot is given for two groups of 30 people , who go to painting class.
It has been asked that which group most likely has a lower mean age of painting students .
On the base of visual inspection , it can be said that the Group A has an average lower than the Group B
It can be said so as the dots are highest at the age of 19 in Group A , and the whole distribution lies between 9 to 19 age of people ,
while in Group B the age of the people is wide distributed and therefore the average age will be more ,
By calculation it is proved that the average age of Group A is 15.967
and the average age of Group B is 19.7.
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Which equation matches the statement below?
Three times the difference of a number "n" and five is sixteen more than double the number "r
O 3(5-n)=2n+16
O 3(n-5)=16+2n
3(n-5)=2n+16
3n-5=2n+16
Answers
Answer:
3(n-5)=2n+16
Step-by-step explanation:
3 lots of 'n' and 5 means 3 times both values so these values are put into a bracket with a common multiplier (ie. the 3)
3(5 - n)
16 more than 2 lots of 'n' means that n has to be doubled. n + n = 2n. add 16 to this and we have
2n + 16
if these values are both equal (hence why they are in an equation) then all that is needed is for them to be set equal alongside each other.
3(n-5) = 2n+16
:)
Match the concept with its definition and characteristics. i. A set of instructions (codes) that perform a specific task. ii. A calculation where the result is placed into a variable. iii. The computer programming equivalent of a recipe in cooking iv. A formula to calculate a new value based on other values and operations.
1. Algorithm 2. Expression 3. Equation
Answers
First definition matches with expression, second matches with equation ,third matches with algorithm and fourth matches with equation.
Given four definitions of equation, expression, algorithm but mixed.
We have to match the definitions with appropriate term.
We know that expression is a combination of numbers, symbols, fraction, coefficients, indeterminants mostly not found in equal to form. It exhibits a behaviour only.
Algorithm is a computer programming to do a specific task in a predetermined way.
Equation is a relationship between two variables expressed in equal to form. In this we have to put the value of variables and the equation gives us a value.
Hence First definition matches with expression, second matches with equation ,third matches with algorithm and fourth matches with equation.
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state the domain and range of the following relation
x^2+y^2=16
Answers
The domain and range is [-4, 4] and [0, 4]
What is Domain and range?The domain of a function is the set of values that we are allowed to plug into our function.
The range of a function is the set of values that the function assumes.
x² + y² = 16
y = √16 - x²
For domain under root should not be negative quantity,
16 - x²≥0
16≥x²
So, x≤4 or x≥4
Thus, the domain is [-4, 4]
Range:
y is maximum at x=0, y=4
y is minimum at x=4, y=0
Thus, range = [0, 4]
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What is the turning point of the parabola with the equation?
y=27(x-64)squared+43
A: (-64,-43) B: (64,43) C: (64,-43) D: (1728,43) E: (-64,43)
Answers
The turning point of the parabola is (64, -43)
What is a turning point?Turning point is that point on a parabolic curve in which the gradient of the curve changes value.
It is also the point on the curve in which the curve starts rising or falling.
Analysis:
[tex]27(x-64)^{2}[/tex] + 43
27(x-64)(x-64) + 43
27([tex]x^{2}[/tex] -64x -64x +4096) + 43
27[tex]x^{2}[/tex] -3456x +110592 +43
27[tex]x^{2}[/tex] -3456x +110635
at turning point dy/dx = 0
dy/dx = 54x - 3456
54x - 3456 = 0
54x = 3456
x = 3456/54 = 64
To find the value of y at x = 64
27[tex](64)^{2}[/tex] -3456(64) +110635
110592 - 221184 +110635 = -43
Therefore the turning point of the parabola is (64, -43)
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The perimeter of a triangle is 44cm. One side is 4cm shorter than the second side and twice as long as the third side. Find the length of each side of the triangle.
Answers
The 1st, 2nd, and 3rd sides of the triangle are 16, 20, and 8 respectively.
Given that the perimeter of the triangle is 44 cm.
Let us consider a side 's' which is 4 cm shorter than the second side.
That means the second side is 4 cm longer than s, hence the second side is s+4 cm in length.
We also have that the side of length s is of length twice as long as the third side.
Hence, the length of the third side is half that of s so, it is of length s/2.
Hence, at the end 44=s+(s+4)+(s/2)=s(2+1/2)+4
⇒ s(5/2)=40
⇒ s=8*2=16
So, the 1st, 2nd, and 3rd sides of the triangle are 16, 20, and 8 respectively.
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17.
Lincoln stands on the top of a building and fires a gun upwards. The bullet travels
according to the equation h = -16t² + 384t + 50, where h is the height of the bullet off
the ground in metres at t seconds after it was fired.
a) How far is Lincoln above the ground when he shoots the gun?
b)How high does the bullet travel vertically relative to the ground?
c)How long does it take the bullet to reach its greatest height?
d)After how many seconds (round to nearest 100th) does the bullet hit the ground?
please help asap!
Answers
Answer:
a) 50 meters
b) 2354 meters
c) 12 seconds
d) 24.13 seconds
Step-by-step explanation:
Hello!
a) How far is Lincoln above the ground when he shoots the gun?We need to really understand what the variables represent in this question. Given that t is time, and h is height, the time at which he shoots the bullet will be 0, as the bullet hasn't started traveling yet. This means that we can solve for the original height of the bullet by plugging in 0 for time in the equation.
Equation: [tex]h = -16t^2 + 384t + 50[/tex]
Plug in 0 for t:
[tex]h = -16t^2 + 384t + 50[/tex][tex]h = -16(0)^2 + 384(0) + 50[/tex][tex]h = 50[/tex]The height at which Lincoln shot the bullet is 50 meters.
We can also look at this graphically. The height of origin will simply be when the x-value (in this case t-value) is 0. That means it is the point at which the graph intersects the y-axis, known as the y-intercept.
Standard form of a Parabola: [tex]y = ax^2 + bx + c[/tex]
The y-intercept is the "c" value.
Given our equation: [tex]h = -16t^2 + 384t + 50[/tex]
The c-value is 50. This proves that the y-intercept is 50.
b)How high does the bullet travel vertically relative to the ground?We want to find the highest point of the graph. To do that, we can find the vertex.
We can utilize the Axis of Symmetry (AOS) to find the Vertex.
First, find the AOS using the formula: [tex]AOS = -\frac{b}{2a}[/tex]
a = -16b = 384Plug it into the formula:
[tex]AOS = -\frac{b}{2a}[/tex][tex]AOS = -\frac{384}{2(-16)}[/tex][tex]AOS = \frac{384}{32}[/tex][tex]AOS = 12[/tex]Plug in 12 for t in the equation:
[tex]h = -16t^2 + 384t + 50[/tex][tex]h = -16(12)^2 + 384(12) + 50[/tex][tex]h = -2304 + 4608 + 50[/tex][tex]h = 2304+50[/tex][tex]h = 2354[/tex]Therefore, the highest point of the bullet is 2354 meters.
c)How long does it take the bullet to reach its greatest height?We answered this in the last question. The t-value when h is at its highest is 12.
d)After how many seconds (round to nearest 100th) does the bullet hit the ground?We have to solve for the values of t when h is 0 (when it touches the ground).
Set the equation to 0, and solve using the quadratic formula.
Quadratic formula: [tex]x = \frac{-b\pm\sqrt{b^2 - 4ac}}{2a}[/tex]
[tex]x = \frac{-b\pm\sqrt{b^2 - 4ac}}{2a}[/tex][tex]x = \frac{-384\pm\sqrt{384^2 - 4(-16)(50)}}{2(-16)}[/tex][tex]x = \frac{-384\pm\sqrt{147456 +3200}}{-32}[/tex][tex]x = \frac{-384\pm\sqrt{150656}}{-32}[/tex][tex]x = \frac{-384\pm388.14}{-32}[/tex][tex]x = -\frac{4.14}{32}, x = \frac{772.14}{32}[/tex]We are only going to take the positive solution, as we can't have a negative time. The solution that doesn't work is called an extraneous solution.
[tex]x = \frac{772.14}{32}[/tex][tex]x = 24.13[/tex]It takes approximately 24.13 seconds for the bullet to hit the ground.
subtract 6x 2 −7x−2 from 6x^{2}-2x+6
Answers
Answer:
5x+8
Step-by-step explanation:
The from is the key word
That means the second term is first
6x^2 -2x +6 - (6x^2 -7x -2)
Distribute the minus sign
6x^2 -2x +6 - 6x^2 +7x +2
Combine like terms
5x+8
There are 10 circles and 6 squares. What is the simplest ratio of squares to total
shapes?
Answers
Answer:
The simplest ratio would be 5:3
Step-by-step explanation:
Both 10 and 6 can be divided by 2.
They turn into 5 and 3.
Since you can't make 5 and 3 any smaller, this will be the answer.
5:3
Hope this helped! :D
find the slope of a line passing through the points A(-2,-7) and B(-2,2)
Answers
[tex]\Large\maltese\underline{\textsf{A. What is Asked}}[/tex]
Find the slope of a line passing through (-2,-7) and (-2,2)
[tex]\Large\maltese\underline{\textsf{B. This problem has been solved!}}[/tex]
[tex]\boxed{\begin{minipage}{6cm} To find the slope, \\ we use the formula below.\end{minipage}}[/tex]
[tex]\bf{\dfrac{y2-y1}{x2-x1}}[/tex] | put in the values
[tex]\bf{\dfrac{2-(-7)}{-2-(-2)}}[/tex] | look what happens when I simplify!
[tex]\bf{\dfrac{2+7}{-2+2}}[/tex] | uh-oh
[tex]\bf{\dfrac{9}{0}}[/tex] ...
The operation above is an operation we can't do.
[tex]\bf{Slope=\;Not\;D e f ined}[/tex]
[tex]\cline{1-2}[/tex]
[tex]\bf{Result:}[/tex]
[tex]\bf{=Slope=Not\;De fined}[/tex]
[tex]\LARGE\boxed{\bf{aesthetic\not1\theta\ell}}[/tex]
What is the main benefit of building a connection with your community
Answers
Answer: Being connected means greater opportunities to learn from each other, mine each other's wisdom, and help each other thrive. Connecting. By being more closely interconnected, each member of the community is able to enjoy a wider, richer network of resources, wisdom, connections, and support.
convert 2.3 tn = _______ Ib show your work pls
Answers
Work: 2.3 * 2000
Please help ill give whoever answers the best the brainliest answer ;0
Answers
Answer:
This could be described by the stock market. Suppose you had stock of tesla that went up then flat then down
Step-by-step explanation:
you went for a walk : you started at home, walked away, first slower, then a little bit faster, stayed a little bit first at one place, then started walking back home, stayed a really short time at a second place and finally walked back home.
Slope BC and DE are both -0.4 what is their relationship
Answers
My example attached shows slope of 2 for both lines. It would be the same for -0.4 for both lines.
Blending problems arise when one must decide which of two or more ingredients is to be chosen to produce a product.
Answers
No, it isn't true that blending problems arise when one must decide which of two or more ingredients is to be chosen to provide a product.
Given sentence "Blending problems ...............................supply a product."
We have to answer whether the given sentence is true or false.
We can say that the given sentence is fake. the sole objective functions allowed for applied math problems maximizing profits and minimizing costs.
Blinding problems are a typical application of mixed integer applied mathematics. They involve blending several resources or materials to make one or more products similar to a requirement. Mixed integer linear programs are linear problems during which some variables are required to require integer values.
Hence the given statement is fake regarding arise of blending problems.
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Question is incomplete because it should includes:
State whether the statement is true or false.
What is the value of x for these problems? Pls help I’m so desperate
Answers
Answer:
First Question x = [tex]17\sqrt{2}[/tex] Second Question x = 36
Step-by-step explanation:
First Question:
Since The triangle is isosceles, [tex]17^2 +17^2=x^2[/tex] (Pythagoras)
[tex]x=17\sqrt{2}[/tex]
Second Question
This is half an equilateral triangle, so [tex](\frac{1}{2}x)^2+(18\sqrt{3})^2=x^2[/tex]
[tex]\frac{3}{4}x^2=972[/tex]
[tex]x^2=1296[/tex]
[tex]x=36[/tex] (cannot be negative)
The total surface area of this cuboid is 112^2
Find the value of x
length = 10cm
width = 2cm
Hight = x
Answers
The value of x is 3
How to solve for x?The given parameters are:
Length = 10cm
width = 2cm
Height = x
The surface area is calculated as;
Area = 2 *(lw + lh + wh)
So, we have:
2 * (10 * 2 + 2x + 10x) = 112
Evaluate the like terms and divide by 2
20 + 12x = 56
Subtract 20 from both sides
12x = 36
Divide by 12
x = 3
hence, the value of x is 3
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What kind of compound inequality is
4x-5≥3
Or
5-x > 8
?
a. hole
b. intersection
c. conjunction
d. union
Answers
Answer: D) union
======================================================
Explanation:
Let's solve the first inequality for x.
4x-5 ≥ 3
4x ≥ 3+5
4x ≥ 8
x ≥ 8/4
x ≥ 2
Now solve the other inequality
5 - x > 8
5 > 8+x
8+x < 5
x < 5-8
x < -3
The two solutions we get are x < -3 or x ≥ 2
These two regions do not overlap. The key word "or" connecting the original inequalities also applies to the solutions.
Either x is smaller than -3, OR it is 2 or larger
I recommend drawing out a number line and shading the appropriate regions. The two disjoint regions do not connect which means we have a union of the two regions.
if nm = 8x - 14 and jk = x squared + 1, find JK
Answers
A parallelogram in which adjacent sides are perpendicular to each other is called a rectangle. The length of Jk can be either 10 or 26.
What is a rectangle?A parallelogram in which adjacent sides are perpendicular to each other is called a rectangle. A rectangle is always a parallelogram and a quadrilateral but the reverse statement may or may not be true.
Since in a rectangle the opposite sides are equal, therefore, the sides NM and JK will be equal.
JK = MN
8x - 14 = x² + 1
0 = x² - 8x + 15
x = 5, 3
Hence, the length of Jk can be either 10 or 26.
The complete questions are:
Quadrilateral JKMN is a rectangle, if NM= 8x - 14 and JK= x squared + 1, find JK.
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Which expression is equivalent to the following complex fraction? StartFraction negative 2 Over x EndFraction + StartFraction 5 Over y EndFraction divided by StartFraction 3 Over y EndFraction minus StartFraction 2 Over x EndFraction StartFraction negative 2 y + 5 x Over 3 x minus 2 y EndFraction StartFraction 3 x minus 2 y Over negative 2 y + 5 x EndFraction StartFraction x squared y squared Over (negative 2 y + 5 x) (3 x minus 2 y) EndFraction StartFraction (negative 2 y + 5 x) (3 x minus 2 y) Over x squared y squared EndFraction
Answers
The expression that is equivalent to the given complex fraction is; (-2y+5x) / (3x - 2y)
How to simplify algebraic fractions?The given algebraic sentence can be rewritten as;
((-2/x) + (5/y))/((3/y) - (2/x))
The LCM is xy and as such when we put it in the denominators of each fraction, we have:
((-2y + 5x)/xy)/((3x - 2y)/xy)
Putting 'xy' in the numerator and denominator of the whole fraction:
(-2y + 5x)/(3x - 2y)
The final expression we have is (-2y + 5x)/(3x - 2y)
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Answer:
its A -2y+5x ÷ 3x-2y
Step-by-step explanation:
Edge 2022
how to get more brancells?
Answers
Answer:
Read books, watch documentaries, exercise, anything that benefits your body and mind
Step-by-step explanation:
Can someone please help me with this?
Answers
Answer: -5
Step-by-step explanation:
When x = 8, y = -5.
Gotta need answers fast like asap, it’s geometry, just fill the blanks pls
Answers
Two or more triangles are said to be congruent if and only if they have equal lengths of sides and equal measures of angles.
Thus, the required proof is as shown below:
STATEMENTS REASONS
1. ΔABC and ΔDEC with AB ≅ DE;
BC ≅ EC; <1 ≅ <2 Given
2. <1 and < ABC; < 2 and <DEC are sup Sum of angles on a straight line
3. <ABC ≅ <DEC Congruent angles of similar triangles
4. ∴ΔABC ≅ ΔDEC Side-Angle-Side (SAS) postulate
5. ∴<ACB ≅ <DCE CPCTC postulate
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What is the quotient of (x cubed 3 x squared minus 4 x minus 12) divided by (x squared 5 x 6)?
Answers
The quotient of [tex]x^{3}+3x^{2} -4x-12[/tex] divided by [tex]x^{2} +5x+6[/tex] is (x-2_.
Given the polynomial [tex]x^{3}+3x^{2} -4x-12[/tex] and [tex]x^{2} +5x+6[/tex] and the first expression or polynomial is divided by second.
Quotient is a number that is obtained by dividing two numbers. It can be of two numbers or two expressions. Remainder is a number or an expression left after division of two numbers.
To find the quotient of [tex]x^{3}+3x^{2} -4x-12[/tex] divided by , we have to divide the expression first.
We know that ,
Divident=Divisor*Quotient+remainder
[tex]x^{3}+3x^{2} -4x-12[/tex]=[tex]x^{2} +5x-6[/tex]*(x-2)-12
If we carefully watch the above equation and compares with the above formula then we can easily find that the value of quotient is (x-2).
Hence the quotient of [tex]x^{3}+3x^{2} -4x-12[/tex] divided by [tex]x^{2} +5x-6[/tex] is (x-2).
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Question is incomplete as the given expressions are incomplete as they should be like this:
[tex]x^{3}+3x^{2} -4x-12[/tex] and [tex]x^{2} +5x-6[/tex].
A line passes through the two points (0, -2) and (9, 1). what is the y y -coordinate of the point on this line whose x x -coordinate is 12? a. -6 b. 0 c. 2 d. 4
Answers
Answer: 2
Step-by-step explanation:
The slope of the line is
[tex]\frac{-2-1}{0-9}=\frac{1}{3}[/tex]
So, the equation of the line is [tex]y=\frac{1}{3}x-2[/tex].
Substituting in x=12,
[tex]y=\frac{1}{3}(12)-2=2[/tex]
i honestly done know what to do (look at image)
Answers
Answer:
A is x - 4n / 3, B is 6k + 9n, C is 11k + 16n
Step-by-step explanation:
Pretty simple, you are adding the algebra grids, or substituting variables and making out an equation.
Solving for B: 4k + 6n + 2k + 3n = 6k + 9n
Solving for A: (2k + 3n) + x = 5k + 7n = x - 4n / 3
Solving for C: 6k + 9n + 5k + 7n = 11k + 16n
Lily read 3 books in 4 months. What was her rate of reading in books per month? Express your answer in simplest form.
HELP ASAP!!
Answers
Divide 3 books by 4 months
Given: AC BD and AC and BD bisect each other.
Prove: BE EC
Answers
1) [tex]\overline{AC} \cong \overline{BD}[/tex] and [tex]\overline{AC}[/tex] and [tex]\overline{BD}[/tex] bisect each other (given)
2) [tex]ABCD[/tex] is a parallelogram (a quadrilateral with diagonals that bisect each other is a parallelogram)
3) [tex]ABCD[/tex] is a rhombus (a parallelgoram with congruent diagonals is a rhombus)
4) [tex]\overline{BE} \cong \overline{EC}[/tex] (halves of congruent segments are congruent)
Try It #2
Use function notation to express the weight of a pig in pounds as a function of its age in days d.
Answers
Based on the weight of the pig and the age in days, the function notation would be w = f (d).
What function expresses the pig's weight in days old?The function will take the form of:
y = f(x)
y will be the weight and x will be the age of the pig in days.
The function would therefore be:
w = f (d)
In conclusion, the function notation to express the pig's weight is w = f (d).
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can you help me with this. step by step
Answers
Answer:
B The vertex is at (2,2)
Or could possibly be
C the axis of symmetry is x=2