Answer:
290 in^2
Step-by-step explanation:
A roller coaster train with 6 passenger cars and the front decoration has a mass of 3,500kg. when the train has the front decoration and only 4 passenger cars, it has a mass of 2,400kg.
what is the mass of the decoration and of each passenger car?
The mass of the decoration is 200 kg and for each passenger car is 550 kg
How to determine the mass of the decoration and of each passenger car?From the question, we have the following parameters that can be used in our computation:
6 passenger cars and the front decoration = 3,500kg4 passenger cars and the front decoration = 2,400kgThese can be represented as
(6, 3500) and (4, 2400)
The slope of the above points represent the mass of each passenger car
This is calculated as
Slope = Difference in mass/Difference in number of cars
So, we have
Slope = (3500 - 2400)/(6 - 4)
Evaluate
Slope = 550
When there are no passenger cars in the train, we have
(0, Mass of decoration)
Using the slope formula, we have
Slope = (Mass of decoration - 3500)/(0 - 6)
So, we have
Slope = (Mass of decoration - 3500)/(-6)
This gives
(Mass of decoration - 3500)/(-6) = 550
Cross multiply
Mass of decoration - 3500 = -3300
Add 3500 to both sides
Mass of decoration = 200
Hence, the mass of decoration is 200 kg
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In a group of 20 students there are 11 girls what is the ratio of boys to girls
Answer:
9:11
Step-by-step explanation:
subtract the amount of girls to get the amount of boys then put it in ratio form in the order it is asked so it is 9:11
a critical value, z subscript alphazα, denotes the _______.
A critical value, z subscript alpha (zα), denotes the boundary or cutoff point for a statistical test where the level of significance, also known as alpha (α), is set.
A critical value, z subscript alpha (zα), denotes the value at which the probability of observing a test statistic in the tail(s) of the sampling distribution equals the pre-determined significance level (alpha).
The critical value can be defined as the value that is compared with the parameter value in the hypothesis test to determine whether the null hypothesis will be rejected. If the value of the parameter is less than the critical value, the null hypothesis is rejected.
However, if the measured value is higher than the critical value, reject the null hypothesis and accept the alternative hypothesis. In other words, cropping divides the image into acceptable and unacceptable areas. If the value of the index falls within the rejection range, the rejection of the fact is rejected, otherwise the negative hypothesis is rejected.
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Hello, can someone pls help me ty!
Answer:
C, 5/2
Step-by-step explanation:
3 I2x -1I + 4 = 16
Isolate absolute value:
3 I2x -1I + 4 - 4 = 16 - 4
3 I2x -1I= 12
(3 I2x -1I) / 3 = 12 / 3
I2x -1I= 4
Since the question is only asking for the positive, all you need to solve for is the +4. Solve for x
2x -1 = 4
2x -1 + 1 = 4 +1
2x = 5
2x / 2 = 5 / 2
x = 5/2 or C
What scale factor takes hexagon J to hexagon K?
Answer:
Step-by-step explanation:
boody boody
I need this today. Which two integers is 37 square root between?
Answer:
The square root of 37 is approximately 6.0827. To determine which two integers it lies between, we can find the integers that are closest to the square root of 37.
The integer that is smaller than 6.0827 is 6, and the integer that is larger than 6.0827 is 7.
Therefore, the square root of 37 is between the integers 6 and 7.
Given: abcd is a rectangle, M is midpoint of line AB prove: line DM is congruent to CM
DM is congruent to line CM because CDM is congruent to triangle CBM using the SAS congruence criteria for triangles.
Draw a diagram of the rectangle ABCD with M as the midpoint of AB. Draw lines CM and DM ( refer to the attached image). Since AB is a line segment, we know that AM is congruent to MB (because M is the midpoint of AB). Since ABCD is a rectangle, we know that AB is parallel to CD, and AD is parallel to BC. Thus, we have two pairs of parallel lines: AB and CD, and AD and BC.
Using the fact that opposite sides of a rectangle are congruent, we have CD = AB. Now, we have a pair of congruent sides (DM and CM) that are opposite each other in triangle CDM and CBM respectively. We also have another pair of congruent sides (CD and AB) that are opposite each other in both triangles. Finally, we know that the angle CMD is congruent to the angle CMB because they are vertical angles. By the Side-Angle-Side (SAS) congruence criterion, we can conclude that triangle CDM is congruent to triangle CBM.
Therefore, line DM is congruent to line CM by SAS congruence criteria.
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ΔABC ΔXYZ. What's the scale factor from ΔABC to ΔXYZ? An image of two similar triangles, ABC and XYZ. AC is labeled 12. XZ is labeled 3. Question 16 options: 12 4
The scale factor of the ΔABC to the triangle ΔXYZ as evident in the task content is; 12/3 = 4.
What is the scale factor of transformation of the triangle ΔABC to ΔXYZ?It follows from the task content that the two triangles ΔABC and ΔXYZ are said to be similar triangles.
On this note, it can be concluded from the statement of similarity that the ratios of their corresponding side lengths must be in proportion.
Consequently, since side AC is labelled 12 and side XZ is labelled; 3, the scale factor from ΔABC to ΔXYZ is; 12/3 = 4.
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A survey showed 60% of dentists recommended Sparkle toothpaste. If 200 dentists took part in the survey, how many of them recommended Sparkle toothpaste?
120 of the 200 dentists that participated in the survey and recommended Sparkle toothpaste.
If 60% of dentists recommended Sparkle toothpaste, then the remaining 40% did not.
To find out how many dentists recommended Sparkle toothpaste, we can multiply the total number of dentists in the survey (200) by the percentage who recommended it (60% or 0.6):
To solve for x, we can cross-multiply and simplify:
100x = 60 * 200
x = (60 * 200)/100
x = 120
Number of dentists who recommended Sparkle = 0.6 * 200 = 120
Therefore, 120 of the 200 dentists who took part in the survey recommended Sparkle toothpaste.
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Please help I need it ASAP!!!!
Thank you
2v^2+5v-7=0
Answer:
v=1
Step-by-step explanation:
(Laws of Exponents with Integer Exponents LC) Simplify (34)−1. one over three raised to the fourth power one over three raised to the power of negative four −34 33
The simplified value of (3⁴)⁻¹ is 1/(3⁴) , which means one over three raised to the fourth power , the correct option is (a) .
In the question ,
the expression is given as (3⁴)⁻¹ ,
the rule of law of exponents states that a⁻ⁿ = 1/aⁿ .
Using the above mentioned law of indices , the expression (3⁴)⁻¹ can be written as ,
(3⁴)⁻¹ = 3⁻⁴ = 1/3⁴
which can be expressed in words as one over three raised to the fourth power .
Therefore , the simplified value of (3⁴)⁻¹ is 1/(3⁴) , which means one over three raised to the fourth power , the correct option is (a) .
The given question is incomplete , the complete question is
The Simplified value of (3⁴)⁻¹ is
(a) one over three raised to the fourth power
(b) one over three raised to the power of negative four
(c) −3 to the power of 4
(d) 3 to the power of 3
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What notation is used to represent the distance from point A to B
Answer:
Absolute Value
Step-by-step explanation:
Absolute Value is very useful in finding the distance between two points on the number line. The distance between any two points a and b in the number line is
|a-b| or |b-a|.
The distance between points A and B can be represented as AB and the distance can be found using the distance formula.
What is a distance formula?It is defined as the formula for finding the distance between two points. It has given the shortest path distance between two points.
The distance formula can be given as:
\(\rm d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\)
We have two points A and B:
The distance between A and B can be found using the distance formula.
Let point A is (a, b) and point B is (c, d)
The distance between points A and B can be represented as:
Using the distance formula:
\(\rm AB=\sqrt{(c-a)^2+(d-b)^2}\)
From the above expression, the distance cannot be negative because the square root of any number cannot be negative.
Thus, the distance between points A and B can be represented as AB and the distance can be found using the distance formula.
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if there are 5 students who like singing and 4 students who have pets what fraction of students like to sing?
5/1
Step-by-step explanation:
you get the whole number which is 5, turn it into a fraction which is 5/1 and it says 5 students like to sing.
I hope this helped
#5/1 is answer
A
B В
D
Which theorem would you use to prove ACE" ADBE?
O AA Similarity
SSS Similarity
OSAS Similarity
O ASA Similarity
Answer:
AA similarity (Postulate).
Step-by-step explanation:
The AA Similarity Postulate states that two triangles are similar if all their corresponding angles are congruent, and their corresponding sides are proportional.
In this case:
∡ACE ≅ ∡DBE (Given)
∡BED ≅ ∡AEC (Vertical Angles Theorem)
For Proportionality, you will have to get more information on the measurements of the sides. As side measurements are not given, you cannot use any similarities based on sides to prove the similarities of the triangles.
greastest common factor of 24 and 18
Answer: 6
Step-by-step explanation:
the biggest number that can go into both 24 and 18 evenly is 6. 24/6 is four, and 18/6 is three
i need help on these questionsi need help on 17-24 questions
the solution of question 17 to 24.
to plot any points (x,y) on the graph,
1. The x-component of the point (x, y) moves the point along a horizontal line. If the x- value is positive, the point moves “x-units” towards the right side. On the other hand, if the x-value is negative, the point moves “x-units” towards the left.
2. The y-component of the point (x, y) moves the point along a vertical line. If the y-value is positive, the point moves “y-units” in an upward direction. However, if the y-value is negative, the point moves “y-units” in a downward direction.
consider the case of (-1,-5)
here x=-1
so, x component moves on the left side,
y=-5,
so at x=-1, the point moves downward (negative y-axis) and stop at -5
the stopping is the point whose coordinates are (-1,-5).
Similarly goes with all the points.
What is the mass of hydrogen atoms that is measured at 54 u? the relationship between atomic mass units (u) and grams (g) is 1 u = 1.66 x 10^-24 g.
The mass of hydrogen atoms that measures 54 u is 89.64 x 10^-24
Analysis:
If 1 u = 1.66 x 10^-24, then 54 u = 54 x 1.66 x 10^-24 = 89.64 x 10^-24
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Consider the equation below. (If an answer does not exist, enter DNE.)
f(x) = x5 ln(x)
Find the interval on which f is increasing.
Find the interval on which f is decreasing.
The interval of the function f(x) = x⁵ ln(x) is increasing for x > \(e^{(-1/5)\) ≈ 0.818.
The interval on which function f(x) is decreasing for x < 0.
What is Interval?An interval in math is measured in terms of numbers. An interval includes all the numbers that come between two particular numbers.
To determine the intervals on which the function f(x) = x⁵ ln(x) is increasing or decreasing, we need to analyze the derivative of the function. Let's find the derivative of f(x) first.
Taking the derivative of f(x) with respect to x using the product rule, we have:
f'(x) = (5x⁴)(ln(x)) + (x⁵(1/x)
= 5x⁴ ln(x) + x⁴
= x⁴ (5 ln(x) + 1)
Now, to find the intervals on which f(x) is increasing or decreasing, we need to examine the sign of the derivative f'(x).
For f'(x) = x⁴ (5 ln(x) + 1), we can determine the sign by considering the intervals where each factor is positive or negative.
x⁴: This factor is positive for x > 0 and negative for x < 0.
5 ln(x) + 1: To analyze the sign of this term, we need to consider the logarithm. ln(x) is only defined for x > 0. Since the logarithm is positive for values greater than 1, we can determine the sign of 5 ln(x) + 1 by considering the intervals where ln(x) > -1/5.
For ln(x) > -1/5, we have x > \(e^{(-1/5)\) ≈ 0.818.
Now, let's summarize the intervals for each factor:
x⁴: Positive for x > 0, negative for x < 0.
5 ln(x) + 1: Positive for x > \(e^{(-1/5)\) ≈ 0.818.
Based on this information, we can determine the intervals on which f(x) is increasing or decreasing:
Increasing interval: f(x) is increasing for x > \(e^{(-1/5)\) ≈ 0.818.
Decreasing interval: f(x) is decreasing for x < 0.
In conclusion:
The function f(x) = x⁵ ln(x) is increasing for x > \(e^{(-1/5)\) ≈ 0.818.
The function f(x) is decreasing for x < 0.
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How will you calculate it's surface area?
The general formula for the total surface area of a right prism is T. S. A. =ph+2B where p represents the perimeter of the base, h the height of the prism and B the area of the base.
Ned is looking over his credit scores. His Experian score is 690, his Equifax score is 691, and his TransUnion score is 651. What is his mean credit score? (Round to the nearest whole point, if applicable.) a. 677 b. 671 c. 665 d. 690
Not on the quiz, so this isn't urgent. Thank you for helping :}}
Answer:
a. 677
Step-by-step explanation:
Add the three scores, 690+ 691+651 then divide by 3
equals to 677.3 so by rounding to the nearest whole point it’s 677.
The mean credit score of Ned is 677. The correct answer would be option (A).
What is arithmetic mean?The arithmetic mean is defined as the ratio of the sum of observations to the total number of observations. It can be referred to as the average of a specific set of data or the arithmetic mean.
The formula for the mean of a given set of data is as follows:
Mean = Sum of Observations/Total number of observations
The mean credit score of Ned can be calculated by adding all three credit scores and dividing the sum by 3.
So, (690 + 691 + 651) / 3
= 2032 / 3
= 677.33
Rounding to the nearest whole point, we get
= 677
Therefore, the mean credit score of Ned is 677.
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Kevin cuts lawns during the summer months. He charges $10 plus $5 per hour. The algebraic model is C = 5h + 10, where C represents the total cost and h represents the hours worked. Use pencil and paper to create a table of values for hours worked from 1 to 5, incrementing h by 1 in each row.
Answer:
1 hour : 15 dollars
2 hours: 20 dollars
3 hours: 25 dollars
4 hours: 30 dollars
5 hours: 35 dollars
Step-by-step explanation:
Substitute the hour number in for h and solve. for example, if you were trying to find 5 hours, you would produce the equation c = 5(5) + 10. once you solve that you get c = 25 + 10 which is also c = 35.
FIND THE LCM OF EACH SET OF NUMBERS USING THE PRIME FACTORIZATION METHOD.
(BEST ANSWER = BRAINLIEST)
1. {12,15}
2. {16,24}
3. {18,27}
4. {20,28}
5. {36,54}
6. {9,12,24}
7. {15, 20, 45}
8. {6,8,12}
9. {4,6,9}
10. {8,9,12}
The LCM of the set of numbers are:
1. {12,15} = 60
2. {16,24} = 48
3. {18,27} = 54
4. {20,28} = 140
5. {36,54} = 108
6. {9,12,24} = 72
7. {15, 20, 45} = 180
8. {6,8,12} = 24
9. {4,6,9} = 36
10. {8,9,12} = 72
What is the LCM?The least common multiple of two or more numbers is the least multiple that is common to two or more numbers. A multiple of a number is the product of an integer and that number. For example, the multiples of 6 are 12 and 18.
Prime factors of 12 = 2 x 2 x 3
Prime factors of 15 = 3 x 5
LCM = 2 x 2 x 3 x 5 = 60
Prime factors of 16 = 2 x 2 x 2 x 2
Prime factors of 24 = 2 x 2 x 2 x 3
LCM = 2 x 2 x 2 x 2 x 3 = 48
Prime factors of 18 = 2 x 3 x 3
Prime factors of 27 = 3 x 3 x 3
LCM = 2 x 3 x 3 x 3 = 54
Prime factors of 20 = 2 x 2 x 5
Prime factors of 28 = 2 x 2 x 7
LCM = 2 x 2 x 5 x 7 = 140
Prime factors of 36 =2 x 2 x 3 x 3
Prime factors of 54 = 2 x 3 x 3 x 3
LCM = 2 x 2 x3 x 3 x3 = 108
Prime factors of 9 = 3 x 3
Prime factors of 12 = 2 x 2 x 3
Prime factors of 24 = 2 x 2 x 2 x 3
LCM = 2 x 2 x 2 x 3 x 3 = 72
Prime factors of 15 = 3 x 5
Prime factors of 20 = 2 x 2 x 5
Prime factors of 45 = 3 x 3 x 5
LCM = 2 x 2 x 3 x 3 x 5 = 180
Prime factors of 6 = 2 x 3
Prime factors of 8= 2 x 2 x 2
Prime factors of 12= 2 x 2 x 3
LCM = 2 x 2 x 2 x 3 = 24
Prime factors of 4 = 2 x 2
Prime factors of 6= 2 x 3
Prime factors of 9= 3 x 3
LCM = 2 x 2 x 3 x 3 = 36
Prime factors of 8 = 2 x 2 x 2
Prime factors of 9= 3 x 3
Prime factors of 12 = 2 x 2 x 3
LCM = 2 x 2 x 2 x 3 x 3 = 72
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ILL BRAINLIST U PLS HELP ME!!!!!!!
Write an expression or equation for each of the following situations.
Fred is 35 years old. This is three times James age minus one. (Let J represent James age).
Answer:
35=3J-1
Step-by-step explanation:
Yes.
Btw J=12
click on the measurements that is equal to 20 cups.
Measurement of 5 quarts is equal to 20 cups.
What are Measurements?Measurement is the method of comparing the properties of a quantity or object using a standard quantity.
Measurement is essential to determine the quantity of any object.
We have the measurement, 1 cup = 1/4 quarts
Let x be the number of quarts for 20 cups.
By using proportion,
1 / (1/4) = 20 / x
Cross multiplying,
x = 20 × (1/4)
x = 5
Hence the measurement of 20 cups is equal to 5 quarts.
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Thee measurement equals to 20 cups is 5 quarts.
Thus, option (a) is correct.
To determine which measurement is equal to 20 cups, compare the conversion factors between cups and each of the given measurements.
As, the conversion factors are:
1 quart is equal to 4 cups 1 pint is equal to 2 cups 1 gallon is equal to 16 cups 1 fluid ounce is equal to 0.125 cups1. 5 quarts
= 5 x 4 cups/quart
= 20 cups
2. 40 pints
= 40 x 2 cups/pint
= 80 cups
3. 1 gallon
= 1 x 16 cups/gallon
= 16 cups
4. 320 fluid ounces
= 320 x 0.125 cups/fluid ounce
= 40 cups
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What is the quotient of 154,504 divided by 28 with long division?
The value of the equation A = 154,504 / 28 = 5518
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Let the dividend be p = 154,504
Let the divisor be q = 28
Substituting the values in the equation , we get
A = p / q
A = 5,518
5518
28 | 154504
1 4 0
1 4 5
1 4 0
5 0
2 8
2 2 4
2 2 4
0
So , the remainder of the equation is 0 and the quotient is 5518
Hence , the equation is A = 5518
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Use the relationship shown on this graph.
Answer:
B. y=50x
Step-by-step explanation:
We can see the y intercept is 0 because the line starts at 0.
To find the slope, we can look at the first point. It is at (1, 50).
Slope=rise/run or change in y/change in x=50/1=50.
If x = 5 and y = 2, find: xy
Answer:
10
Step-by-step explanation:
x x y
5x2
10
For a Poisson distribution, the expression e^- 3(1+3+ 3^2/2!+3^3/3!+3^4/4!) equals the cumulative probability of ___ arrivals during an interval for which the average number of arrivals equals__
The expression e^(-3)(1+3+3^2/2!+3^3/3!+3^4/4!) equals the cumulative probability of 4 arrivals during an interval for which the average number of arrivals equals 3.
Here's a step-by-step explanation:
1. Recognize that the given expression represents the cumulative probability for a Poisson distribution.
2. Identify the average number of arrivals (λ) as 3, which is the exponent in the e^(-3) term.
3. Recognize that the terms inside the parentheses correspond to the Poisson probability mass function (PMF) for k=0, 1, 2, 3, and 4 arrivals.
4. Since the expression sums up the probabilities for k=0 to k=4, it represents the cumulative probability of 4 arrivals.
5. In summary, the expression represents the cumulative probability of 4 arrivals during an interval where the average number of arrivals is 3.
The recursive formula for a geometric sequence is:
[a₁ = 6
an = an-₁ • (2)
What is the 3rd term of this sequence?
O A. 8
OB. 24
OC. 10
OD. 12
The 3rd (third term )of the sequence with a₁ = 6 and aₙ = aₙ₋₁ • 2 using Geometric Sequence is 24.
Understanding Geometric SequenceTo find the third term of the geometric sequence with a recursive formula, we can use the given formula which is a GP formula:
a₁ = 6
aₙ = aₙ₋₁ • 2
Given
First term (a₁) = 6
Therefore
Second term (a₂) = a₁ • 2
= 6 • 2 = 12
Third term (a₃) = a₂ • 2
= 12 • 2 = 24
Therefore, the third term of the sequence is 24.
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Jayden has two jobs. One week his paycheck was the same for both jobs. As a
server he earned $9.64 per hour plus $82.35 in tips. Working at a jewelry store he
earned $14.86 per hour plus $17.10 in sales bonuses. Write an equation that can be
used to determine the number of hours, h, that Jayden worked the week his
paycheck was the same for both jobs.
a. What are the parameters?
b. Define the variable(s).
c. Write & solve the equation:
(Jewelry Store) = (Server)
d. Interpret the solution.
Answer:
a. Rate per hour, number of hours, additional payment (tips, bonuses),b. Variable is h,c. 9.64h + 82.35 = 14.86h + 17.10, h = 12.5,d. Jayden worked 12.5 hours both in the store and as server at that week-----------------------------------
Number of hours is h.
Job as server, total amount earned9.64h + 82.35Job at a jewelry store, total amount earned14.86h + 17.10Same amount earned in both cases, the equation is9.64h + 82.35 = 14.86h + 17.10Solve it for h9.64h + 82.35 = 14.86h + 17.1014.86h - 9.64h = 82.35 - 17.105.22h = 65.25h = 65.25/5.22h = 12.5