Geometric growth is a type of exponential growth where a quantity or value increases at a fixed percentage rate over a certain period of time.
Geometric growth is a type of exponential growth where a quantity or value increases at a fixed percentage rate over a certain period of time. This means that the growth rate is proportional to the current size or value of the quantity, resulting in a continuously increasing growth rate.
Geometric growth is commonly observed in natural and social systems, such as population growth, compound interest, and the spread of infectious diseases. It is represented mathematically by an exponential function, where the base of the exponent is greater than one, indicating an increasing rate of growth over time.
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I have solved the question in general, as the given question is incomplete.
The complete question is:
What is geometric growth ?
If a shoe size of 8 is added to the data, how does the IQR change?
The IQR becomes a 3.
The IQR remains a 2.5.
The IQR remains a 2.
The IQR becomes a 1.5.
If a shoe size of 8 is added to the data, the IQR is affected in the following way: C. the IQR remains a 2.
How to calculate the interquartile range (IQR)?In Mathematics, interquartile range (IQR) is the difference between quartile 1 (Q₁) and quartile 3 (Q₃):
IQR = Q₃ - Q₁
Based on the given data set, we can logically deduce the following interquartile ranges:
Quartile 3 (Q₃) = 8
Quartile 1 (Q₁) = 6
Now, the interquartile range (IQR) can be calculated as follows:
Interquartile range (IQR) = Q₃ - Q₁
Interquartile range (IQR) = 8 - 2
Interquartile range (IQR) = 2
Based on the 1.5 × IQR rule for outliers, we have:
1.5 × IQR = 1.5 × 2 = 3
Therefore, the shoe size will be 3 points below Q₁ and 3 points above Q₃:
Lower shoe size = 6 - 3 = 3
Upper shoe size = 8 + 3 = 11.
In conclusion, we can reasonably infer and logically deduce that the interquartile range (IQR) would remain at 2.
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Max Wholesaler borrowed $4500 on 11%, 120-day note after 45 days max paid $1575 on the note 30 days later Max Paid an additional 1003 $150 use ordinary interest determine the total interest is in the U.S. Rule
Answer:
a) 183.75
b) 386.25
i believe thats right, i am very sorry if i am wrong
Theresa has only a basic 25/50/25 liability policy on her vehicle. Her son borrowed it and caused an accident where he and two passengers were injured. One passenger suffered $30,000 in damages and the other passenger and Theresa's son each suffered $10,000 in damages. Damage to the other car involved in the accident was $18,000. Theresa's vehicle, worth $7,500 was totaled. How much will the insurance company pay in total damages?
The insurance company will pay a total of $70,000 in damages as insurance.
What exactly is insurance?
Insurance is a contract between an individual or entity (the insured) and an insurance company (the insurer) in which the insurer agrees to provide financial protection or compensation to the insured in any loss or damage. The insured typically pays a premium to the insurer in exchange for this protection. Insurance policies can provide coverage for various risks, such as accidents, illness, property damage, and liability.
Now,
Theresa's insurance policy covers up to $25,000 for bodily injury per person, up to $50,000 total for bodily injury per accident, and up to $25,000 for property damage per accident.
For bodily injury, the insurance will cover $25,000 for the first passenger, $10,000 for the second passenger, and $10,000 for Theresa's son, which adds up to $45,000. Since this is below the $50,000 total for bodily injury per accident, the insurance will cover all the bodily injury damages.
For property damage, the insurance will cover up to $25,000 per accident. Since the total property damage is $18,000 + $7,500 = $25,500, which is above the $25,000 coverage limit, the insurance will only pay out $25,000.
Therefore, the insurance company will pay a total of $45,000 + $25,000 = $70,000 in damages.
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What is the value of x in the equation below?
Answer: x = 1 In4
Step-by-step explanation:
Sorry if I’m wrong
Please help!
What is the full height of the tree?
Round your answer to the nearest tenths place
Answer:
height ≈ 17.0 m
Step-by-step explanation:
consider the right triangle with angle 29° , opposite side x and adjacent side of 28 m
using the tangent ratio in the right triangle
tan29° =[tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{x}{28}[/tex] ( multiply both sides by 28 )
28 × tan29° = x , then
x ≈ 15.5 m ( to the nearest tenth )
now add on the 1.5 m
height of tree = 15.5 + 1.5 = 17.0 m
The measure of abd is (0.3x+67) and the measure of cbd is (0.1x+41) Find the value of x.
The measure of abd is (0.3x+67) and the measure of cbd is (0.1x+41), the value of x is 130.
What is abd?Abd is an abbreviation for the term "abdomen." It is used to describe the part of the body located between the chest and the pelvis, and contains many vital organs including the stomach, intestines, pancreas, and liver. Abd is often used in medical terminology, particularly when referring to conditions that affect the abdomen such as appendicitis or diverticulitis.
The measure of ABD is (0.3x+67) and the measure of CBD is (0.1x+41). Since the two angles are supplementary (they add up to 180 degrees), we can set the two equations equal to each other and solve for x.
0.3x + 67 = 0.1x + 41
Subtracting 0.1x from both sides of the equation, we get:
0.2x = 26
Dividing both sides of the equation by 0.2, we get:
x = 130
Therefore, the value of x is 130.
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If The measure of abd is (0.3x+67) and the measure of cbd is (0.1x+41) then the value of x is 180.
What is an algebraic expression?
An algebraic expression is a mathematical phrase that contains variables, numbers, and mathematical operations such as addition, subtraction, multiplication, and division.
To find the value of x, we need to use the fact that the sum of the angles in a triangle is 180 degrees.
We know that the sum of angles ABD and CBD is equal to angle ABC, which is 180 degrees.
So we can set up the following equation:
ABD + CBD = ABC
(0.3x + 67) + (0.1x + 41) = 180
Simplifying the equation, we get:
0.4x + 108 = 180
Subtracting 108 from both sides, we get:
0.4x = 72
Dividing both sides by 0.4, we get:
x = 180
Therefore, the value of x is 180.
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The area of a triangular piece of stained glass is 50 square centimeters If the height of the triangle is four times the base, how long are the height and base of the piece of stained glass?
The base οf the triangle is 5 centimeters and the height οf the triangle is 20 centimeters.
What is the triangles?In geοmetry, a triangle is a three-sided pοlygοn that cοnsists οf three line segments οr sides and three angles.
Let's denοte the base οf the triangle by "b" and the height by "h". We knοw that the area οf the triangle is 50 square centimetres, sο we can use the fοrmula fοr the area οf a triangle tο set up an equatiοn:
[tex]Area = (1/2) * base * height[/tex]
Substituting the given values, we get:
[tex]50 = (1/2) * b * h[/tex]
We also know that the height of the triangle is four times the base:
h = 4b
We can substitute this expression for "h" into the equation for the area:
[tex]50 = (1/2) * b * (4b)[/tex]
[tex]50 = 2b^2[/tex]
Dividing both sides by 2, we get:
[tex]25 = b^2[/tex]
Taking the square rοοt οf bοth sides, we get:
b = 5
Sο the base οf the triangIe is 5 centimeters. Using the expressiοn fοr the height in terms οf the base, we can find the height:
h = 4b = 4(5) = 20
Sο the height οf the triangIe is 20 centimeters.
Hence, the base οf the triangIe is 5 centimeters and the height οf the triangIe is 20 centimeters.
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A family starts from home and drives to a national park. The expression 245-55t represents the distance, in miles, the family still needs to drive after t hours. What does the 55 in the expression represents?
The 55 in the expression represents the speed of the family’s car in miles per hour.
What is called distance?
The complete length of the path between any two points is called distance.
The expression 245-55t represents the distance, in miles, the family still needs to drive after t hours.
A camp counselor starts from home and drives to a campground.
The expression 245-55t represents the distance, in miles, the counselor still needs to drive after t hours.
Now, in expression 245 is the distance in miles between his home to the campground.
And 55 is the rate at which the distance 245 miles is reducing per hour.
The 55 in the expression represents the speed of the family’s car in miles per hour.
If the speed of the camp counselor is 55 miles per hour, then we can use the formula distance = speed × time
Find out long it will take for the counselor to reach the campground?
Let’s set distance = 0 and solve for t:
245-5t = 0
55t = 245
t = 4.45hours
Therefore, it will take approximately 4.45 hours for the camp counselor to reach the campground.
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Point A (3, -5) is reflected over the x-axis. What is its new location?
The new location of Point A is (3, 5). This is because the x-coordinate remains unchanged, while the y-coordinate is inverted, making it positive.
Point A is located at (3, -5). To reflect this point over the x-axis, we need to calculate the new coordinates. First, we will note that the x-coordinate remains unchanged. This means that the new x-coordinate is 3. Secondly, we will note that the y-coordinate needs to be flipped, meaning it will become positive. To do this, we will take the opposite of the original y-coordinate. Since the original y-coordinate is -5, the new y-coordinate will be 5. Therefore, the new location of Point A is (3, 5).
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Henry had 23 1/3 quarts of juice. How many gallons did Henry have?
Henry had 35/6 gallons of juice, which is equivalent to 5 and 5/6 gallons.
To convert quarts to gallons, we need to know that there are 4 quarts in 1 gallon. So, we divide the number of quarts by 4 to get the number of gallons.
In this problem, we're given that Henry had 23 1/3 quarts of juice. To convert this amount to gallons, we first need to convert the mixed number to an improper fraction. We can do this by multiplying the whole number by the denominator of the fraction and then adding the numerator. This gives us:
23 1/3 = (23 × 3 + 1) / 3 = 70 / 3
Now we can divide 70/3 by 4 to get the amount of juice in gallons:
70/3 ÷ 4 = 70/3 × 1/4 = 70/12
We can simplify this fraction by dividing both the numerator and denominator by their greatest common factor, which is 2 in this case. This gives us:
70/12 ÷ 2/2 = 35/6
So, Henry had 35/6 gallons of juice in total.
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21. In a standard deck of cards, a face card is a jack, queen, or king. Select all the true statements.
P(ace) = 4/52 or 1/13
P(jack) = 4/13
P(ace) > P(king)
P(numbered card) > P(face card)
P(spade) = P(heart)
so, they are not equally likely. Thus, P(spade) = 13/52 or 1/4, and P(heart) = 13/52 or 1/4, but P(spade) ≠ P(heart).
What is Probability?Probability is a measure of the likelihood of an event occurring. It is a number between 0 and 1, with 0 indicating that an event is impossible and 1 indicating that an event is certain to occur. The probability of an event is calculated by dividing the number of ways an event can occur by the total number of possible outcomes.
The true statements are:
P(ace) = 4/52 or 1/13
P(jack) = 4/13
P(ace) > P(king)
The false statements are:
P (numbered card) > P (face card) - this is not true since there are 12 face cards (4 jacks, 4 queens, 4 kings) and 40 numbered cards (2-10), so P(face card) = 12/52 or 3/13, and P (numbered card) = 40/52 or 10/13, which means that P (numbered card) > P (face card).
P(spade) = P(heart) - this is not true either, since there are 13 cards of each suit, but the spades and hearts are different suits, so they are not equally likely. Thus, P(spade) = 13/52 or 1/4, and P(heart) = 13/52 or 1/4, but P(spade) ≠ P(heart).
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Can someone please help me with this asap!!
Answer:
Since the equation of the circle is:
[tex](x-3)^2 +(y-1)^2 = 100[/tex]
we can conclude that:
1. The center has coordinates (3, 1)
2. The new circle has a center with coordinates (3,5)
3. The new circle has an equation of:
[tex](x -3)^2 +(y - 5)^2 = 100[/tex]
Aaliyah is making a bracelet and a necklace to give to her friend. She adds 8 charms to the bracelet. Aaliyah plans to put at least as many charms on the necklace as the bracelet. Let n represent the number of charms Aaliyah might add to the necklace. Which inequality models the story?
The inequality that models the story is n ≥ 8
An inequality is a mathematical statement that compares two values or expressions using inequality symbols such as "<" (less than), ">" (greater than), "<=" (less than or equal to), ">=" (greater than or equal to), or "≠" (not equal to)
The number of charms Aaliyah might add to the necklace is represented by n. Since she plans to put at least as many charms on the necklace as the bracelet, we can use the inequality symbol "≥" to indicate this relationship.
So, the inequality that models the story is
n ≥ 8
This inequality states that the number of charms added to the necklace (n) must be greater than or equal to 8, which is the number of charms Aaliyah added to the bracelet.
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What is the rule for the reflection? ry-axis(x, y) → (â€"x, y) ry-axis(x, y) → (x, â€"y) rx-axis(x, y) → (â€"x, y) rx-axis(x, y) → (x, â€"y)
The reflection's rule is described below. The right response is x-axis (x, y) = (x, -y).
When we gaze at our own reflection in a mirror, we naturally think of a reflection as a mirror image.
In maths, the concept of reflection and a mirror image are comparable.
The rules for reflection across the y-axis and x-axis are fundamental transformations in geometry. The rule for reflection across the y-axis is (x, y) → (-x, y), which means that every point's x-coordinate is negated while the y-coordinate remains the same. This transformation has the effect of reflecting the object or figure across the y-axis.
Similarly, the rule for reflection across the x-axis is (x, y) → (x, -y), which means that every point's y-coordinate is negated while the x-coordinate remains the same. This transformation has the effect of reflecting the object or figure across the x-axis. These transformations are important in many areas of mathematics and science, including computer graphics and physics.
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i wnet to the grocery store this weekend and bought 3 lbs of apples and 4lbs of oranges for $3.45. if i had bought 4 lbs of apples and 2 lbs of oranges then it would of only cost me $3.10. how much did it cost me per pound for apples and how much per pound of oranges?
Answer:
apples - $0,55 per pound
oranges - $0,45 per pound
Step-by-step explanation:
Let's assume, that apples cost x dollars per pound and oranges cost y dollars per pound.
Let's write 2 equations according to the given information and put them in a system:
{3x + 4y = 3,45,
{4x + 2y = 3,10;
Let's make x the subject from the 1st equation:
3x = 3,45 - 4y / : 3
x = 1,15 - 1 1/3y
Let's replace x in the 2nd equation:
[tex]4 \times(1.15 - 1 \frac{1}{3} y) + 2y = 3.10[/tex]
[tex]4.6 - \frac{16}{3} y + 2y = 3.10[/tex]
[tex] - \frac{10}{3} y = 3.10- 4.6[/tex]
[tex] - \frac{10}{3} y = - 1.5[/tex]
[tex]y = 0.45[/tex]
[tex]x = 1.15 - 1 \frac{1}{3} \times 0.45 = 0.55[/tex]
A bag contains 7 marbles: one each of red, orange, yellow, green, blue, violet, and white. A child randomly pulls 4 marbles from the bag. What is the probability that the marbles chosen are green, blue, red, and yellow? round
Answer:
[tex]\frac{1}{35}=0.029[/tex]
Step-by-step explanation:
Each marble has a probability [tex]\frac{1}{7}[/tex] of being pulled out of the bag.
We need to pull out green, blue, red or yellow in the first pull.
That is mean we have a [tex]\frac{4}{7}[/tex] probability to choose one of these. (Let it be green marble)
In secend pull we have 6 marbles in the bag and 3 of them we need to pull out. That is meean we have a probability [tex]\frac{3}{6}[/tex] to choose one of these (Let it be blue marble).
In third pull we have 5 marbles in the bag and 2 of them we need to pull out. That is meean we have a probability [tex]\frac{2}{5}[/tex] to choose one of these (Let it be red marble).
In last pull we have 4 marbles in the bag and we need to pull out last one (yellow). That is meean we have a probability [tex]\frac{1}{4}[/tex].
[tex]\frac{4}{7} *\frac{3}{6} *\frac{2}{5}* \frac{1}{4} =\frac{4}{7} *\frac{1}{2} *\frac{2}{5} *\frac{1}{4} =\frac{1}{35}= 0.029[/tex]
raul sold his dinette set for $235 through an online site, which charged him 9% of the selling price as commission. how much was the commission
Answer: $21.15
Step-by-step explanation:
Giving brainly to correct answer Complete the following proof:
Column A
Reason 2:
Reason 3:
Reason 4:
Reason 5:
STATEMENT 6:
Reason 6:
Column B
a. ASA
b. Reflexive Property of Congruence
c. AAS
d. Alternate Exterior Angles Theorem
e. SSS
f. Symmetric Property of Congruence
g. SAS
h. Transitive Property of Congruence
i. WX ≅ ZY
j. Given
k. CPCTC
l. Alternate Interior Angles Theorem
The reasons that completes the proof to show that WX ≅ ZY are:
2. Given; 3. Alternate Interior Angles Theorem 4. Reflexive Property of Congruence 5. AAS 6. CPCTC.
How to Complete the Proof?Given that WX║ZY and <X ≅ <Z, we can prove that WX ≅ ZY as shown below in the proof.
Statements Reasons
1. WX║ZY 1. Given
2. <X ≅ <Z 2. Given
3. <XWY ≅ <ZYW 3. Alternate Interior Angles Theorem
4. WY ≅ WY 4. Reflexive Property of Congruence
5. ΔWZY ≅ ΔYXW 5. AAS
6. WX ≅ ZY 6. CPCTC
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Please do help! If you can please try to answer all 3.
Thus, the equation of line parallel to given line and with passing points (-6, -4) is: y = -1/6 x - 10.
Define about the slopes for parallel lines:The slopes for perpendicular lines are the opposite reciprocals of the slopes of parallel lines, which are equal. It's a worked example of identifying the parallel or perpendicular nature of given lines.
The standard slope intercept form:
y = mx + c ..eq 1
slope m and y intercept is c.
Given equation:
y = -1/6 x + 2 ..eq 2 on comparing eq 2 with eq 1
m = -1/6 and c is 2
Now, slope of two parallel lines are same.
Passing point = (-6, -4)
Equation of line:
y - y1 = m (x - x1)
y + 4 = -1/6( x + 6)
y = -1/6 x - 10
Thus, the equation of line parallel to given line and with passing points (-6, -4) is: y = -1/6 x - 10.
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Find the solution to each of these recurrence relations with the given initial conditions. use an iterative approach such as that used in example 10 d) an =2an-1-3, ao =-1 e) an-(n + 1)aa-1, ao 2
The solution to each of these recurrence relations with the given initial conditions are a) an = 1+1+2+3+4+5.....+n and b) an = n.n-1.n-2 = 2.5 = (n!)5
In the field of mathematics, a recurrent equation is a formula that determines the nth value of a sequence of numbers based on a combination of previous values. Typically, the equation only involves k past values of the sequence, where k is a constant parameter independent of n; this k is known as the recurrence order. These equations, also known as difference equations, describe a sequence or array in terms of itself through recursion. They establish a relationship between the dependent variable and the differences of various orders of the variable. Recurrent equations can be utilized to model the runtime of recursive programs by distinguishing between recursive and non-recursive operations.
a) an = an-1 + n, ao = 1
a1 = a0 +1 = 1+1
a2 = a1+2 = 1+1+2
a3= a2+3 = 1+1+2+3
an = 1+1+2+3+4+5.....+n
1+n(n+1)/2 = n2+n+2/2
e) an = n an-1, ao = 5
a1 = ao = 5
a2 = 2 a1 = 2.5
a3 = 3 a2 = 3.2.5
an = n.n-1.n-2 = 2.5 = (n!)5
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the area of a square is increasing at a rate of 24 cm^2/min how fast is the length of the edge increasing when the area
The length of the edge of the square is increasing at a rate of 12/13 cm/min when the area is 169 cm^2, given that the area of the square is increasing at a rate of 24 cm^2/min.
Let's assume that the side length of the square is represented by "x" and the area of square is represented by "A". Then we have:
A = x^2
Differentiating both sides with respect to time "t", we get:
dA/dt = 2x(dx/dt)
Given that dA/dt = 24 cm^2/min, we can find dx/dt when A = 169 cm^2 (which is the area of a square with side length of 13 cm):
24 = 2(13)(dx/dt)
Simplifying this expression, we get:
dx/dt = 24/(26) = 12/13
Therefore, the length of the edge of the square is increasing at a rate of 12/13 cm/min when the area is 169 cm^2.
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_____The given question is incomplete, the complete question is given below:
The area of a square is increasing at a rate of 24 cm^2/min
How fast is the length of the edge increasing when the area = 64 cm^2
In a direct variation, y=20 when x=5. Write a direct variation equation that shows the relationship between x and y
The direct variation equation that shows the relationship between x and y, where y = 20 when x = 5, is y = 4x.
In a direct variation, the relationship between two variables can be described by the equation y = kx, where y and x are the variables and k is the constant of variation. This equation indicates that y varies directly with x, which means that as x increases or decreases, y also increases or decreases proportionally.
To find the constant of variation, we need to use the given information about the values of y and x. In this case, we are told that when x = 5, y = 20. We can substitute these values into the direct variation equation:
y = kx
20 = k(5)
To solve for k, we divide both sides by 5:
k = 20/5
Simplifying this expression, we get:
k = 4
Therefore, the direct variation equation that shows the relationship between x and y is:
y = 4x
This equation means that for any value of x, if we multiply it by 4, we will get the corresponding value of y. For example, if x = 2, then y = 4(2) = 8. If x = 10, then y = 4(10) = 40. In other words, y is always four times the value of x in a direct variation relationship.
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a sample of 50 11th graders were asked to select a favorite pattern
A mathematical process called subtraction reflects the elimination of items from a collection. There are 14 pupils that enjoy pink polka dots.
How does subtraction work?A mathematical process called subtraction reflects the elimination of items from a collection.
Subtraction is symbolised by the negative sign.
Considering that there were 50 students in the sample as a whole, the number of pupils who enjoy pink polka dots is as follows:
50 students divided by (4+9+11+9+3) yields 14 students.
Thus, there are 14 students that enjoy pink polka dots.
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The complete question is:
A sample of 50 11th graders was asked to select a favorite pattern out of 6 choices. the following display shows what their favorite color patterns were.
blue on grey 4
green 9
pink polka dots?
purple 11
red and orange stripes 9
yellow 3
The counts have been recorded in the accompanying table according to pattern and the number of students who selected the pattern. what is the missing value in the table?
Finding angles - I don't know the method to solve this can someone explain please?
The rectangle ABCD have measures of angle a and b derived to be 69° and 138° respectively to the nearest degree.
How to calculate for the measures of angle in the rectangle ABCDConsidering the right triangle ADC,
tan ACD = 6/16 {opposite/adjacent}
ACD = tan⁻¹(6/16)
ACD = 20.5560
ACD = 21° to the nearest degree
Angle ACD = Angle ABD, and ABD and a are complementary angles, so;
a + ABD = 90°
a + 21 = 90°
a = 90 - 21
a = 69
The angle b forms an isosceles triangle with the angles C and D, so;
b = 180 - 2(21) {sum of interior angles of a triangle}
b = 180 - 42
b = 138°
Therefore, the rectangle ABCD have measures of angle a and b derived to be 69° and 138° respectively to the nearest degree.
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As part of a competition, Diego must spin around in a circle 6 times and then run to a tree. The time he spends on each spin is represented by s and the time he spends running is r. He gets to the tree 21 seconds after he starts spinning.
a. Complete the equation showing the relationship between s and r.
6
s +
2
r =
21
b. Complete the equation that shows the rearrangement of r as a function of s.
r =
–
s
c. If it takes Diego 1.2 seconds to spin around each time, how many seconds did he spend running?
seconds
(Lesson 5-3)
a. the equation showing the relationship between s and r:
6s + 2r = 21
b. the equation that shows the rearrangement of r as a function of s:
r = (21/2) - 3s
c. If it takes Diego 1.2 seconds to spin around each time, the total time he spends spinning is r = 5.7 seconds
How do we calculate?The equation showing the relationship between s and r: 6s + 2r = 21
The equation that shows the rearrangement of r as a function of s:
2r = 21 - 6s
r = (21/2) - 3s
c., the total time Diego spends spinning is:
6s = 6(1.2) = 7.2 seconds
Applying the equation in part (b), we can find the time he spends running:
r = (21/2) - 3s
r = (21/2) - 3(1.2)
r = 5.7 seconds
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the main cables of a suspension bridge are 20 meters above the road at the towers and 4 meters above the road at the center. the road is 80 meters long. vertical cables are spaced every 10 meters. the main cables hang in the shape of a parabola. find the equation of the parabola. then, determine how high the main cable is 20 meters from the center.
The height of the main cable 20 meters from the center is 16 meters above the road.
To find the equation of the parabola, we need to use the information given about the height of the cables at the towers and the center of the bridge. We know that the main cables are 20 meters above the road at the towers, so we can use this information to find the distance between the towers, which is
distance between towers = 80 meters - 2(20 meters) = 40 meters
We also know that the main cables are 4 meters above the road at the center, so we can use this information to find the height of the vertex of the parabola, which is
vertex height = 4 meters + 20 meters = 24 meters
We can now use the vertex form of a parabola to write the equation
y = a(x - h)^2 + k
where (h, k) is the vertex and a is a constant that determines the shape of the parabola.
Substituting the values we found for the vertex height and the distance between the towers, we get
y = a(x - 40)^2 + 24
We now need to find the value of a. To do this, we can use the fact that the vertical cables are spaced every 10 meters. This means that the distance between the vertex of the parabola and a point on the main cable 10 meters from the center of the bridge is
distance = 10 meters
Substituting x = 50 (since the center of the bridge is at x = 40 + 10 = 50) and y = 14 (since the cable is 4 meters above the road at this point), we get
14 = a(50 - 40)^2 + 24
-10 = 100a
a = -0.1
Substituting this value of a into the equation we found earlier, we get
y = -0.1(x - 40)^2 + 24
To find the height of the main cable 20 meters from the center, we can substitute x = 60 (since the center of the bridge is at x = 50 and we want to go 20 meters to the right) into the equation
y = -0.1(60 - 40)^2 + 24
y = -0.1(20)^2 + 24
y = -0.1(400) + 24
y = -40 + 24
y = -16
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thirty-five out of 50 students in a class wear glasses. what percentage of students in the class do not wear glasses? 10% 30% 50% 70% 90% none of the above
The percentage of students who do not wear glasses is 30%.
Thirty-five out of 50 students in a class wear glasses. The percentage of students in the class who do not wear glasses is: 30%.Explanation:Given data: The total number of students in the class = 50Number of students who wear glasses = 35. We have to calculate the percentage of students who do not wear glasses.Total students = 50Number of students who wear glasses = 35.
So, the number of students who do not wear glasses = Total students - Number of students who wear glasses= 50 - 35 = 15Percentage of students who do not wear glasses = (Number of students who do not wear glasses / Total students) x 100= (15 / 50) x 100= 0.3 x 100= 30%.
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The stadium usher had 100 seats in his section, he roped off nine seats for other stadium workers and then divided the rest equally for seven student groups. How many more seats does each student group receive?
Step-by-step explanation:
100 - 9 = 91 seats for seven student groups
91 / 7 = 13 seats in each student group
each student group receives 13 - 9 = 4 more seats than the roped off section
cource hero the difference between measured value and true value is known as error. causes for measurement error:
Observational errors, Random errors, Systematic errors, Instrumental limitations and Personal factors are the causes for measurement error.
The difference between measured value and true value is known as error. Causes for measurement error are as follows:
Errors in the experiment can be due to various reasons like observational errors, random errors, systematic errors, errors due to instrumental limitations, and errors due to personal factors.
The difference between measured value and true value is known as error.
The following are the causes of measurement error:
Observational Errors
Observational errors are errors that occur during observation. These errors may occur due to factors such as lack of attention, inadequate experience, and poor eyesight.
Random Errors
Random errors are caused by factors that are unpredictable or random. These errors cannot be removed from the data because they are the result of random fluctuations. For example, when a thermometer is being used, the thermometer might display different temperatures for different readings.
Systematic Errors
Systematic errors are those errors that are caused by a defect in the measuring instrument or an improper calibration of the instrument. These errors can be removed by carefully calibrating the instrument and then performing the measurement.
Instrumental Limitations
Instrumental limitations are caused by the limitations of the measuring instrument. These errors can be minimized by selecting the appropriate instrument for the measurement task.
Personal Factors
Personal factors are errors that are caused by the individual performing the measurement. These errors can be minimized by providing proper training and ensuring that the individual is experienced in the field of measurement.
The above causes lead to the errors in the experiment. Hence, care must be taken to minimize these errors so that the results obtained are accurate.
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according to the 2011 gallup daily tracking polls (https://www.gallup, february 3, 2012), mississippi is the most conservative u.s. state, with 57.2 percent of its residents identifying themselves as conservative. what is the probability that at least 50 respondents of a random sample of 100 mississippi residents do not identify themselves as conservative?
The probability that at least 50 respondents of a random sample of 100 Mississippi residents do not identify themselves as conservative is 0.9989, or approximately 99.89%.
What is binomial distribution?
A binomial distribution is a type of distribution distinct from a continuous distribution in which every trial has an equal chance of reaching a given value and is independent of every other trial. The binary distribution has only two possible outcomes.
This is a binomial distribution problem with n = 100 (sample size) and p = 0.4278 (the probability of not identifying as conservative, which is 1 - 0.572).
The probability of at least 50 respondents not identifying themselves as conservative can be calculated using the cumulative distribution function (CDF) of the binomial distribution:
P(X ≥ 50) = 1 - P(X < 50)
Using a binomial calculator or software, we can find that P(X < 50) = 0.0011.
Therefore,
P(X ≥ 50) = 1 - P(X < 50) = 1 - 0.0011 = 0.9989
So, the probability that at least 50 respondents of a random sample of 100 Mississippi residents do not identify themselves as conservative is 0.9989, or approximately 99.89%.
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